Datasets:

danielfdias98
/

derm-reasoning-think-v2

instruction string	response string	image_id string	class string	source string	content_hash string	quality_flags list
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete papules and small plaques, some exhibiting a linear arrangement suggestive of the Koebner phenomenon. - Color: Hypopigmented to white, with some lesions demonstrating faint erythema or hyperpigmentation at the periphery. - Texture: Surface exhibits fine, silvery...	7916549527449276941	psoriasis	scin	7986fe8f9e8ab78be5085c3d71c26bab233fd04567a5f0f30f38e8c093b4c095	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A solitary, asymmetric, pigmented macule or slightly raised lesion with an irregular shape. - Color: Variegated pigmentation featuring shades of dark brown, black, and light brown. - Texture: Smooth surface with preservation of normal skin markings. - Border: Irregular and poorly...	thrombosed-vein-1	thrombosed_vein	kaggle_dermnet	f5d7d1944fb30c940160c27e7063b108150ea97cb4a8d04d4b785faefa67a558	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Large, well-demarcated plaques arranged symmetrically along skin folds. - Color: Erythematous to reddish-brown. - Texture: Scaly surface with some areas of maceration within the folds. - Border: Sharply defined, well-demarcated, and active with scaling. - Distribution: Symmetrica...	tinea-body-182	tinea	kaggle_dermnet	e374a918e661e63c8e86e1ff1333deade2830c3d41eed57e4605148360097a9c	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, well-circumscribed patch with central purpura and a surrounding ecchymotic halo. - Color: Deep violaceous to purpuric center with a yellowish-green peripheral halo indicative of resolving hemorrhage. - Texture: Smooth surface without visible scaling, crusting, or signif...	biting-insects-19	insect_bite	kaggle_dermnet	043049b81aecc0d59a90f25eee96d50f45cf98fe1bcd391fe87affd08b7c59e6	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: multiple small macules and a slightly elevated papule, some arranged linearly - Color: violaceous to dark brown or purpuric - Texture: smooth, non-scaly - Border: well-demarcated - Distribution: localized on the extensor aspect of an extremity Differential reasoning: - post-infl...	148	hematoma	skincap	597cff033d298765447794482e8a9ad811c545b3c866cbccd096de476e218c0c	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete, circular to annular plaques with fine scaling. - Color: Hypopigmented to light grey or faintly violaceous against a dark skin tone. - Texture: Scaly surface with slightly elevated, active borders. - Border: Well-demarcated, regular circular to annular borders. ...	tinea-scalp-13	tinea	kaggle_dermnet	0ae1649570c9ea00b8403e8aeba22bda421ab672d983ce24eb07f37dc4ee584f	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Erythema, maceration, and fissuring at the labial commissures, often accompanied by crusting or scaling. - Color: Erythematous base with yellowish or brownish crusts. - Texture: Macerated, moist, and fissured, sometimes with a scaly or crusted surface. - Border: Poorly demarcated...	perleche-21	perleche	kaggle_dermnet	4317e4301ff5450da97ee12ba458b62937a3c0b07e6f393de185d654b52db97f	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, exophytic, lobulated nodule - Color: Flesh-colored to light pink - Texture: Cerebriform or multinodular surface with a smooth, slightly shiny appearance - Border: Well-defined and circumscribed - Distribution: Scalp, localized Differential reasoning: - Sebaceous Nevus:...	PAT_1698_3122_83	nevus	pad_ufes	371edc139fa4e1054a1dd29188596ccfcd912c8e00053445229e953358d57e1b	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A solitary, tense, yellowish-white pustule or vesicle situated on a swollen, erythematous base. - Color: Central yellowish-white collection of purulent material surrounded by a prominent erythematous to violaceous halo. - Texture: The central lesion appears smooth and tense due t...	acute-paronychia-27	paronychia	kaggle_dermnet	0621ea80440464e95c68c4d540b214bf795f0c4354004ede5221579b6f3a39d2	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: An irregularly shaped erythematous patch with central fine scaling, accompanied by scattered satellite papules and macules superiorly. - Color: Erythematous (pink to red) with white central scaling. - Texture: Fine, flaky scale centrally over the main patch; surrounding skin appe...	4357089761940467438	contact_dermatitis	scin	c506f9799741e5ba18367de7a106d364722cfd142972c285d4ea1d920ba0b0d9	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Confluent, thickened-appearing plaques with prominent lichenification, linear excoriations, and small hyperkeratotic papules. - Color: Erythematous to hyperpigmented base with focal areas of pale pink or violaceous hues. - Texture: Thickened, leathery, and uneven surface with pro...	3496791689370712664	eczema	scin	656f609e00d6aba9ce50d7e48dba0f2a9540aea1a5256d6565680b89898ff7f5	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple confluent, raised nodules and thickened plaques causing significant distortion of the normal auricular architecture. - Color: Flesh-colored to yellowish-tan, with some areas appearing slightly erythematous. - Texture: Irregular, nodular, and markedly thickened with a som...	Leprosy-15	leprosy	kaggle_dermnet	0b3fbadfc4ed30e4f583ecb0a8996090795dccf5845bc64c6ae3cbeec42e3205	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: White, atrophic plaques with architectural distortion, including loss of normal labial folds and clitoral hood fusion. - Color: Strikingly hypopigmented to ivory-white, with some surrounding faint erythema. - Texture: Wrinkled, thin, parchment-like, with areas of sclerosis and fi...	Lichen-Sclerosis-Vulva-5	lichen_sclerosus	kaggle_dermnet	9bc30dd5176c7d06286e0a078b432e6e5a32ff1796264eedb11ee5bc1286404a	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Large, irregular ulcerated plaque with central necrotic eschar, surrounded by multiple smaller purpuric, crusted papules and nodules. - Color: Central dark brown to black necrotic tissue, surrounded by yellowish-white slough, with a peripheral zone of erythema, purpura, and viola...	vasculitis-104	vasculitis	kaggle_dermnet	890f0dad7954e2140c391e9752dba291f6d5beae60d7a4238ed4e98a781303e8	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple well-circumscribed, oval to round macules and thin plaques, featuring a prominent larger central plaque (herald patch) accompanied by smaller satellite lesions. - Color: Salmon-pink to light orange-brown. - Texture: Fine, thin scale, with the larger lesion demonstrating ...	1061	pityriasis_rosea	skincap	833760538652bca4eb972d2dc2f26684da0167d5411aa5b446e91b311bfb2ff4	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, oval-shaped, slightly depressed plaque with focal areas of erosion, crusting, and subtle raised edges. - Color: Violaceous and erythematous base with central dark red erosions and yellowish-brown crusting. - Texture: Slightly shiny, atrophic surface with focal crusting ...	basal-cell-carcinoma-0095	basal_cell_carcinoma	dermnet_nz	f89cc7b2a42a40a0e9e77830f09031cae2eb767c261517c60339dd9630a06e40	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: large, confluent, well-demarcated plaques with overlying scale - Color: erythematous base with prominent silvery-white scale - Texture: scaly, thickened, and hyperkeratotic - Border: sharply defined and well-demarcated - Distribution: inguinal folds, suprapubic region, scrotum, a...	candidiasis-large-skin-folds-176	candida	kaggle_dermnet	d24f86e558aaa25da41820904e3df23754b203b5f48af79939507f135e88ddf1	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete erythematous papules and pustules, some with central crusting or erosions, characteristic of inflammatory acne. - Color: Erythematous base with some lesions exhibiting yellowish-white central pustulation and honey-colored crusting. - Texture: Raised, irregular s...	acne-pustular-43	acne	kaggle_dermnet	a6daa510bc4a76730b82cffbeb007cac51a1e0abecb3411d812db11dca9d1619	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete, circular to oval macules, erosions, or thin crusted plaques. - Color: Dark brown to violaceous, with some lesions appearing hyperpigmented or hemorrhagic. - Texture: Smooth to slightly scaly or crusted surface depending on the stage of the lesion. - Border: Wel...	2858	factitial_dermatitis	skincap	8756646374c41f321aa792add79aca9b2c19425a67ebbeac13d957068c7f7109	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Complete absence of terminal hair across the entire scalp, presenting as a smooth, non-scarring alopecia. - Color: Flesh-colored to light pink, consistent with the patient's underlying skin tone, without prominent erythema. - Texture: Smooth and slightly reflective, lacking visib...	alopecia-areata-55	alopecia_areata	kaggle_dermnet	91e9746f4760433276e07a018f50f1cabfb30ac1687691b95e871b9ecfb22bf2	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Grouped, small, fluid-filled vesicles on an erythematous base, with some lesions showing early coalescence and umbilication. - Color: Erythematous base with translucent to pale yellow vesicles; focal areas exhibit early honey-colored crusting. - Texture: Smooth, raised, fluid-fil...	herpes-type-1-recurrent-94	herpes_simplex	kaggle_dermnet	3cd126a316a64f6df10070db10b3cecdd20def114da84370c2d8e3db57b6c653	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A solitary, well-circumscribed, dome-shaped nodule. - Color: Violaceous to dark purple, with some focal white areas on the surface. - Texture: Smooth and shiny surface, demonstrating fine, white, linear markings. - Border: Well-defined and regular. - Distribution: Solitary lesion...	hemangioma-8	hemangioma	kaggle_dermnet	80a494d94155f3f4bf128c90978e507ca824d0503f3c79f852110d599d23997f	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Confluent erythematous macules and small papules forming irregular patches, with some areas showing a linear or band-like arrangement, consistent with excoriation or contact. - Color: Bright erythematous. - Texture: Predominantly smooth with some fine papular elevations, suggesti...	-4867306313506229011	atopic_dermatitis	scin	4d56d67f3793467804a4f07152921f3191afaeeb3ad8025d8cbc945f9d5b1453	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete, small macules and fine papules, some exhibiting central crusting, scaling, or excoriation, representing lesions in varying stages of evolution. - Color: Faintly erythematous to hyperpigmented brown spots on a medium skin tone. - Texture: Predominantly smooth ma...	Pityriasis-Lichenoides-7	pityriasis_lichenoides	kaggle_dermnet	4722113ec20115bc7dd733b2cb5414a93e58bbfc8809c9c81db10762a212f9a8	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete and confluent small macules and flat-topped papules forming a morbilliform or maculopapular rash. - Color: Erythematous to light brown or salmon-colored. - Texture: Smooth surface without significant scaling, crusting, or excoriation. - Border: Ill-defined to mo...	drug-eruptions-109	drug_eruption	kaggle_dermnet	08f8cd517dc7d0accd6b5d24739706ce52e4a4a08cfe4abea9c9ff7aea289f8a	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Diffuse, fine polygonal scaling with a cracked-pavement or 'crazy-paving' appearance, accompanied by superficial fissuring and a central linear excoriation or crust. - Color: Erythematous background with overlying white to translucent scaling and a dark brown central crust. - Tex...	eczema-asteatotic-36	eczema	kaggle_dermnet	152d1279c3947b77d65909615f54d8974034f2e21671a5336dafa2b9f8459dc0	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: multiple small, discrete, circular to oval macules (freckling) - Color: light brown to tan - Texture: smooth, non-raised, flush with surrounding skin - Border: well-demarcated but subtle - Distribution: clustered within the axillary vault, extending onto the proximal medial arm a...	neurofibromatosis-54	neurofibromatosis	kaggle_dermnet	5871996f5cf600a262d5bdf7de11843385d24a88f2d7c4d121040a86c08e5518	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete and confluent inflammatory papules, pustules, and scattered deeper nodular lesions, alongside open and closed comedones. - Color: Erythematous to bright pink base with white-to-yellowish purulent centers in pustular lesions, set against a light skin tone. - Text...	2861	acne_vulgaris	skincap	38bc520ec4bd507edf1eee621269be45eb8275241fb4b330fee641ab3f82fe6b	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Extensive desquamation in large sheets with underlying erythema and scattered small pustules. - Color: Bright erythematous base with pale, translucent-to-white peeling skin. - Texture: Peeling, raw, and shiny surface where skin has shed. - Border: Irregular, well-demarcated borde...	ppps26	psoriasis	dermnet_nz	49e88ee839ea0e3577a3c4cf23677a5580c4058f3f6d97ede30866c762be33db	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, elevated, well-circumscribed plaque with an irregular, somewhat lobulated surface and central ulceration or crusting. - Color: Erythematous to pink base with translucent, pearly areas, interspersed with focal dark brown to black pigmentation and hemorrhagic crusting. - ...	basal-cell-carcinoma-superficial-57	basal_cell_carcinoma	kaggle_dermnet	040a1bab19d7a3fcd9245d6075de0a8be5d93207e2e8848c21e966149a4dba2b	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A well-demarcated, pale, atrophic plaque surrounding the urethral meatus, with a central, shallow, erythematous erosion. - Color: The central erosion is erythematous (red), surrounded by a characteristic pearly-white, translucent plaque. The peripheral glans maintains a normal pi...	Lichen-Sclerosus-Penis-3	lichen_sclerosus	kaggle_dermnet	38c68013759761e8a3f8b1b330ac45ddce2566f1a74dfad8b1a18bb1f123e4aa	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, exophytic, dome-shaped nodule with a central erosion. - Color: Bright red, beefy central area surrounded by a pale, whitish rim. The surrounding skin is light-toned and erythematous. - Texture: The central aspect is moist, glistening, and highly friable, while the base ...	pyogenic-granuloma-55	pyogenic_granuloma	kaggle_dermnet	c5b592c8ce9ccb403aae73aaeb524f52d1fc9b383f9d0941301442aeab5b138b	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: circumferential erythematous plaque with fissuring and induration - Color: erythematous with focal areas of pallor and mild silvery scale - Texture: thickened, thickened-appearing, fissured, and slightly scaly - Border: well-demarcated - Distribution: localized to the distal prep...	genital-psoriasis-07	psoriasis	dermnet_nz	f8cdebce2ce7bdb79b1f2a2ea8370f41a6c552be2a1c67a530309f0ca9d1ea06	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, annular, erythematous patch with a central small papule, creating a classic targetoid or 'bull's-eye' appearance. - Color: Erythematous, featuring a central darker red punctum surrounded by a zone of relative clearing and an outer pink-red ring. - Texture: Smooth surfac...	lyme-disease-11	lyme_disease	kaggle_dermnet	d5fb5f61fa0cc7b86da30c1ec245fd190beae1f76882fe556711ca716d2d0ed2	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A large, edematous, and confluent erythematous plaque with overlying vesicles, bullae, erosions, and hemorrhagic crusting. - Color: Erythematous to violaceous base with dark brown/black hemorrhagic crusts and areas of yellowish serous exudate. - Texture: Irregular, moist, and rou...	3694	neutrophilic_dermatoses	skincap	3ccd15aa02a7777cf512ebcbec47f47189178100ddedfe70c62150aa80c35d7c	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete, monomorphic inflammatory papules and small pustules. - Color: Erythematous papules, some with central yellowish-white pustulation. - Texture: Raised, smooth-topped papules and small pustules. - Border: Well-circumscribed individual lesions. - Distribution: Wide...	acne-infantile-11	acne	kaggle_dermnet	2921f375a51a7c468149ee3ca5fae7d75cdc2e05198e5aa0fafb948741816738	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Well-circumscribed depigmented macules and patches - Color: Chalky white to milky white depigmentation - Texture: Smooth surface, consistent with the surrounding skin texture - Border: Sharply demarcated borders - Distribution: Perioral region, glans penis, and face Differential...	2682	vitiligo	skincap	2354b89d377c59b4fd601aef913829cbfa0bb89d2dd79bc471c9855076111af2	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Superficial desquamation characterized by annular and circinate collarettes of scale resulting from ruptured vesicles or bullae that are no longer present. - Color: The peeling edges are white, revealing underlying pink-to-erythematous, slightly -appearing skin. - Texture: Rough,...	keratolysis-exfoliativa-26	keratolysis_exfoliativa	kaggle_dermnet	5622d35ce2d0ce8598d4e25df1b63006164333f413ec953b534e140d29f9320b	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Erythematous patches and plaques with prominent linear fissuring, scaling, and crusting. - Color: Erythematous to pinkish-red. - Texture: Dry, scaly, and cracked with deep fissures and focal maceration. - Border: Ill-defined and irregular, blending into surrounding skin. - Distri...	1708	allergic_contact_dermatitis	skincap	eb17a32a030544694dc848702a15e7ce65328df77783ec5c07d91600bfae04b1	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Longitudinal band of pigmentation within the nail plate, accompanied by diffuse nail plate discoloration. - Color: Diffuse yellowish-tan hue across the nail plate with a distinct, darker brown central longitudinal stripe. - Texture: Smooth and intact nail plate surface, with appa...	yellow-nails-9	nail_disease	kaggle_dermnet	8d629222cd409e2fc47034be4acbbcbebb38302c744864ec37d72e69e9e7810c	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Erythematous papules, excoriations, and thickened-appearing inflammatory plaques (nodular scabies variant). - Color: Erythematous to hyperpigmented pink-brown. - Texture: Rough, excoriated, with focal crusting and induration. - Border: Well-demarcated individual papules; ill-defi...	scabies-19	scabies	kaggle_dermnet	0fbadc543d749c1334d2b78c0a82d76502c9684db7e7693ef98ee0d6dea8642c	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple discrete, dome-shaped papules with central umbilication, accompanied by larger, well-demarcated erythematous plaques. - Color: Pearly, flesh-colored to slightly translucent papules; erythematous, pink-red plaques. - Texture: Smooth, shiny surface on the papules; slightly...	molluscum-contagiosum-32	molluscum	kaggle_dermnet	1baf9f1c190a0622f0538c8ef7e748c95871ee3b2f2d232933361260b96dd9d7	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Solitary, well-circumscribed, exophytic nodule or thick plaque with a stuck-on appearance. - Color: Pale tan to off-white with numerous dark brown to black punctate spots. - Texture: Verrucous and keratotic with prominent, numerous comedo-like openings (horn cysts). - Border: Sha...	seborrheic-keratoses-smooth-3	seborrheic_keratosis	kaggle_dermnet	5f2825f7c0ccd89a8b415a19f326dff9637b45e963bcdad36c2c6e025e38c491	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Multiple linear, parallel erythematous plaques and superficial excoriations with focal crusting. - Color: Erythematous, ranging from light pink to deeper red in areas of excoriation. - Texture: Slightly elevated plaques with focal superficial crusting and scaling. - Border: Well-...	-7659016285565634945	contact_dermatitis	scin	49dc5ab5d04ddf6d0971d1988e2657356e114a15e96f8ca54ca1617262c126e7	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Verrucous papules coalescing into linear plaques, with some areas showing central crusting or erosion, arranged in a Blaschkoid distribution. - Color: Erythematous to pink. - Texture: Verrucous, pebbly, and slightly hyperkeratotic, with localized areas of crusting. - Border: Well...	3409	epidermal_nevus	skincap	7755eddb7c87e4ef8018c47743125634823e56744fdc4592effd5957f39dfd99	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Erythematous, macerated plaques with focal erosions, fissuring, and overlying crusting. - Color: Bright red (erythematous) base with areas of white maceration and yellowish-brown crust. - Texture: Moist, macerated, and eroded with some rough, crusty areas. - Border: Irregular and...	tinea-foot-webs-51	tinea	kaggle_dermnet	bfa1998d260f51f68795ca11287de23ef045e4903479b19de5ea348d4befe1f5	[]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Ill-defined erythematous patches and thin plaques with overlying scaling, crusting, and punctate excoriations. - Color: Erythematous background with yellowish-brown crusts and scattered dark red hemorrhagic spots. - Texture: Rough, scaly, and crusted with mild lichenification (sk...	eczema-hand-104	eczema	kaggle_dermnet	6b39376d3b46a63bcee1bdeb14f4a2d2eb77defb8e24ce50a5dfeb6e480d2ea2	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A solitary, irregularly shaped patch composed of a light tan-brown background macule with multiple darker brown macules superimposed within it. - Color: Light tan to light brown background with darker brown, distinct macules scattered throughout. - Texture: Smooth and flat, consi...	nevus-spilus-12	nevus_spilus	kaggle_dermnet	23841abc79527b706ceb5775ed02fa1789e60d7831d73eb4091461dc13b7a5b1	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A solitary, erythematous nodule or papule with a central, dark keratotic plug or crust, arising on a background of sun-damaged skin. - Color: Erythematous base with a prominent central black or dark brown keratotic crust; surrounding skin exhibits mottled hyperpigmentation. - Tex...	PAT_757_1431_696	actinic_keratosis	pad_ufes	2748cd53998f6d8ee41c325ee443f67658c3eacec737afb6ed9968a1f501f52c	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A solitary, well-circumscribed, dome-shaped papule. - Color: Pinkish-tan, slightly lighter than the surrounding skin. - Texture: Smooth and shiny surface. - Border: Well-defined and regular. - Distribution: Solitary lesion on a hair-bearing area. Differential reasoning: - Basal ...	PAT_1298_1051_831	nevus	pad_ufes	20d6558187b20f2ea1e17bf044b91f40e7681fb1b8ab7f398f49db0bc69c88a2	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: Extensive erythematous patch with pronounced hyperkeratosis and fine, powdery white scale. - Color: Erythematous base with overlying white scale. - Texture: Dry, scaly, and hyperkeratotic with accentuation of skin markings and fine fissuring. - Border: Well-demarcated along the l...	tinea-foot-dorsum-49	tinea	kaggle_dermnet	30c101364ebf8c9f3d6ca228d9774a2c170bb1f6ef84b75edfe28b40bc2c65fc	[ "sanitized_text" ]
Diagnose this skin condition with structured reasoning.	<think> Visible evidence: - Morphology: A well-circumscribed, slightly elevated papule/plaque with a somewhat annular configuration. - Color: Violaceous to erythematous. - Texture: Prominent skin markings with a slightly shiny, atrophic appearance in the center; exaggerated skin creases. - Border: Well-defined and slig...	dermatomyositis-7	dermatomyositis	kaggle_dermnet	fd1a8c1e3f609ed2712887fdca962efa9c721c0575e720e950b891f70e6f665f	[ "sanitized_text" ]

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Dermatology Reasoning Dataset — Visible Thinking v2

This is a cleaned visible-thinking successor to danielfdias98/derm-reasoning-full-reasoning. The original dataset and the earlier CoT variant are not overwritten.

Every assistant response is formatted as:

<think>
Visible evidence:
- ...

Differential reasoning:
- ...

Limitations:
- Symptoms, duration, tenderness, palpation findings, lab confirmation, dermoscopy, and patient history are not inferable from the image alone unless explicitly visible or provided.
</think>
<answer>
{"diagnosis": "...", "category": "...", "confidence": "...", ...}
</answer>

The <think> block is rebuilt deterministically from visible structured fields (morphology, color, texture, border, distribution, and observation). The original free-form reasoning field is not copied into the thinking block.

Cleaning Summary

Metric	Count
Source rows	28486
Train rows kept	22763
Validation rows kept	2568
Rows quarantined	3155
Duplicate hash groups detected	506
Post-clean train/val duplicate hashes	0

Quarantine Reasons

Reason	Rows
`duplicate_conflicting_class`	330
`duplicate_cross_split_train_leak`	79
`duplicate_same_split_noncanonical`	261
`hard_dermoscopy`	744
`low_confidence`	1827

Rows were quarantined, not silently discarded during auditing. The build script preserves audit/quarantine.jsonl, audit/duplicate_groups.jsonl, and audit/summary.json locally for reproducibility.

Schema

image: embedded image
instruction: user instruction
response: <think>/<answer> formatted assistant response
image_id: filename stem
class: original class folder label
source: attributed source dataset
content_hash: SHA-256 of image bytes
quality_flags: deterministic cleanup flags

Quick Load

from datasets import load_dataset

ds = load_dataset("danielfdias98/derm-reasoning-think-v2")
print(ds)
print(ds["train"][0]["response"])

License

CC-BY-NC-SA 4.0, inheriting the most restrictive component of the source data. Non-commercial research use only.

Citation

@misc{dias2026derm-reasoning-think-v2,
  author = {Ferreira Dias, Daniel},
  title  = {Dermatology Reasoning Dataset — Visible Thinking v2},
  year   = {2026},
  howpublished = {\url{https://huggingface.co/datasets/danielfdias98/derm-reasoning-think-v2}},
}

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