umarjan11/Medical-qna huggingface dataset:
Question: What is (are) multiple sclerosis ?

Answer: Multiple sclerosis is a condition characterized by areas of damage (lesions) on the brain and spinal cord. These lesions are associated with destruction of the covering that protects nerves and promotes the efficient transmission of nerve impulses (the myelin sheath) and damage to nerve cells. Multiple sclerosis is considered an autoimmune disorder; autoimmune disorders occur when the immune system malfunctions and attacks the body's own tissues and organs, in this case tissues of the nervous system.  Multiple sclerosis usually begins in early adulthood, between ages 20 and 40. The symptoms vary widely, and affected individuals can experience one or more effects of nervous system damage. Multiple sclerosis often causes sensory disturbances in the limbs, including a prickling or tingling sensation (paresthesia), numbness, pain, and itching. Some people experience Lhermitte sign, which is an electrical shock-like sensation that runs down the back and into the limbs. This sensation usually occurs when the head is bent forward. Problems with muscle control are common in people with multiple sclerosis. Affected individuals may have tremors, muscle stiffness (spasticity), exaggerated reflexes (hyperreflexia), weakness or partial paralysis of the muscles of the limbs, difficulty walking, or poor bladder control. Multiple sclerosis is also associated with vision problems, such as blurred or double vision or partial or complete vision loss. Infections that cause fever can make the symptoms worse.  There are several forms of multiple sclerosis: relapsing-remitting MS, secondary progressive MS, primary progressive MS, and progressive relapsing MS. The most common is the relapsing-remitting form, which affects approximately 80 percent of people with multiple sclerosis. Individuals with this form of the condition have periods during which they experience symptoms, called clinical attacks, followed by periods without any symptoms (remission). The triggers of clinical attacks and remissions are unknown. After about 10 years, relapsing-remitting MS usually develops into another form of the disorder called secondary progressive MS. In this form, there are no remissions, and symptoms of the condition continually worsen.  Primary progressive MS is the next most common form, affecting approximately 10 to 20 percent of people with multiple sclerosis. This form is characterized by constant symptoms that worsen over time, with no clinical attacks or remissions. Primary progressive MS typically begins later than the other forms, around age 40.  Progressive relapsing MS is a rare form of multiple sclerosis that initially appears like primary progressive MS, with constant symptoms. However, people with progressive relapsing MS also experience clinical attacks of more severe symptoms.
Question: What are the genetic changes related to Stevens-Johnson syndrome/toxic epidermal necrolysis ?

Answer: Several genetic changes have been found to increase the risk of SJS/TEN in response to triggering factors such as medications. Most of these changes occur in genes that are involved in the normal function of the immune system.  The genetic variations most strongly associated with SJS/TEN occur in the HLA-B gene. This gene is part of a family of genes called the human leukocyte antigen (HLA) complex. The HLA complex helps the immune system distinguish the body's own proteins from proteins made by foreign invaders (such as viruses and bacteria). The HLA-B gene has many different normal variations, allowing each person's immune system to react to a wide range of foreign proteins. Certain variations in this gene occur much more often in people with SJS/TEN than in people without the condition.  Studies suggest that the HLA-B gene variations associated with SJS/TEN cause the immune system to react abnormally to certain medications. In a process that is not well understood, the drug causes immune cells called cytotoxic T cells and natural killer (NK) cells to release a substance called granulysin that destroys cells in the skin and mucous membranes. The death of these cells causes the blistering and peeling that is characteristic of SJS/TEN.  Variations in several other HLA and non-HLA genes have also been studied as potential risk factors for SJS/TEN. However, most people with genetic variations that increase the risk of SJS/TEN never develop the disease, even if they are exposed to drugs that can trigger it. Researchers believe that additional genetic and nongenetic factors, many of which are unknown, likely play a role in whether a particular individual develops SJS/TEN.  The drugs most frequently associated with SJS/TEN include several medications that are used to treat seizures (particularly carbamazepine, lamotrigine, and phenytoin); allopurinol, which is used to treat kidney stones and a form of arthritis called gout; a class of antibiotic drugs called sulfonamides; nevirapine, which is used to treat HIV infection; and a type of non-steroidal anti-inflammatory drugs (NSAIDs) called oxicams. Other factors may also trigger SJS/TEN. In particular, these skin reactions have occurred in people with an unusual form of pneumonia caused by infection with Mycoplasma pneumoniae and in people with viral infections, including cytomegalovirus. Researchers suspect that a combination of infections and drugs could contribute to the disease in some individuals. In many cases, no definitive trigger for an individual's SJS/TEN is ever discovered.
Question: What is (are) Pitt-Hopkins syndrome ?

Answer: Pitt-Hopkins syndrome is a condition characterized by intellectual disability and developmental delay, breathing problems, recurrent seizures (epilepsy), and distinctive facial features.  People with Pitt-Hopkins syndrome have moderate to severe intellectual disability. Most affected individuals have delayed development of mental and motor skills (psychomotor delay). They are delayed in learning to walk and developing fine motor skills such as picking up small items with their fingers. People with Pitt-Hopkins syndrome typically do not develop speech; some may learn to say a few words. Many affected individuals exhibit features of autistic spectrum disorders, which are characterized by impaired communication and socialization skills.  Breathing problems in individuals with Pitt-Hopkins syndrome are characterized by episodes of rapid breathing (hyperventilation) followed by periods in which breathing slows or stops (apnea). These episodes can cause a lack of oxygen in the blood, leading to a bluish appearance of the skin or lips (cyanosis). In some cases, the lack of oxygen can cause loss of consciousness. Some older individuals with Pitt-Hopkins syndrome develop widened and rounded tips of the fingers and toes (clubbing) because of recurrent episodes of decreased oxygen in the blood. The breathing problems occur only when the person is awake and typically first appear in mid-childhood, but they can begin as early as infancy. Episodes of hyperventilation and apnea can be triggered by emotions such as excitement or anxiety or by extreme tiredness (fatigue).  Epilepsy occurs in most people with Pitt-Hopkins syndrome and usually begins during childhood, although it can be present from birth.  Individuals with Pitt-Hopkins syndrome have distinctive facial features that include thin eyebrows, sunken eyes, a prominent nose with a high nasal bridge, a pronounced double curve of the upper lip (Cupid's bow), a wide mouth with full lips, and widely spaced teeth. The ears are usually thick and cup-shaped.  Children with Pitt-Hopkins syndrome typically have a happy, excitable demeanor with frequent smiling, laughter, and hand-flapping movements. However, they can also experience anxiety and behavioral problems.  Other features of Pitt-Hopkins syndrome may include constipation and other gastrointestinal problems, an unusually small head (microcephaly), nearsightedness (myopia), eyes that do not look in the same direction (strabismus), short stature, and minor brain abnormalities. Affected individuals may also have small hands and feet, a single crease across the palms of the hands, flat feet (pes planus), or unusually fleshy pads at the tips of the fingers and toes. Males with Pitt-Hopkins syndrome may have undescended testes (cryptorchidism).
Question: What are the symptoms of Basilar migraine ?

Answer: What are the signs and symptoms of Basilar migraine? Episodes of basilar migraines usually begin with an aura, which is a group of symptoms that serve as a warning sign that a bad headache is coming. Signs and symptoms of an aura vary, but may include: Dizziness and vertigo Disorientation Double vision and other visual changes Tinnitus Loss of balance Confusion Dysarthria Fainting Loss of consciousness These symptoms can last any where from two minutes to over an hour. They are then followed by a throbbing headache which is often along the back of the head and nausea. The Human Phenotype Ontology provides the following list of signs and symptoms for Basilar migraine. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Aphasia - Apraxia - Autosomal dominant inheritance - Blurred vision - Coma - Confusion - Diplopia - Drowsiness - Dysarthria - Dysphasia - Episodic ataxia - Fever - Hemiparesis - Hemiplegia - Incomplete penetrance - Intellectual disability - Migraine with aura - Seizures - Transient unilateral blurring of vision - Vertigo - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. What are the signs and symptoms of a basilar migraine? Episodes of basilar migraines usually begin with an aura, which is a group of symptoms that serve as a warning sign that a bad headache is coming. Signs and symptoms of an aura vary, but may include: Dizziness and vertigo Disorientation Double vision and other visual changes Tinnitus Loss of balance Confusion Dysarthria Fainting Loss of consciousness These symptoms can last any where from two minutes to over an hour. They are then followed by a throbbing headache which is often along the back of the head and nausea.
Question: What are the symptoms of Adult-onset vitelliform macular dystrophy ?

Answer: What are the signs and symptoms of Adult-onset vitelliform macular dystrophy? Signs and symptoms of adult-onset vitelliform macular dystrophy typically begin during mid-adulthood, in the fourth or fifth decade of life. At the time of diagnosis, individuals may have minimal visual symptoms (such as mild blurring) or mild metamorphopsia (distorted vision). Cells underlying the macula become more damaged over time, which can cause slowly progressive vision loss. The condition is usually bilateral (affecting both eyes). It usually does not affect peripheral vision or the ability to see at night. Studies have revealed much variability in the signs, symptoms and progression of this condition. It has been reported that while one individual may not have significant changes in visual acuity over several years, another may experience ongoing visual loss. It has been suggested that in the majority of affected individuals, progression of functional loss is limited. In general, the long-term outlook (prognosis) is usually good, but loss of central visual function is possible. The Human Phenotype Ontology provides the following list of signs and symptoms for Adult-onset vitelliform macular dystrophy. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the macula 90% Visual impairment 90% Abnormality of color vision 50% Abnormality of retinal pigmentation 50% Choroideremia 50% Visual field defect 50% Retinal detachment 7.5% Autosomal dominant inheritance - Macular atrophy - Macular dystrophy - Metamorphopsia - Photophobia - Reduced visual acuity - Vitelliform-like macular lesions - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Question: What are the symptoms of Sprengel deformity ?

Answer: What are the signs and symptoms of Sprengel deformity? Signs and symptoms of Sprengel deformity can vary depending on the severity and whether additional skeletal or muscular abnormalities are present. Some people may not have noticeable signs or symptoms. It more commonly occurs on the left side, but can occur on both sides (bilaterally). In addition to shoulder asymmetry, the elevated shoulder blade may cause a lump in the back of the base of the neck; underdeveloped or incomplete muscles in the surrounding area; and limited movement of the shoulder and arm on the affected side. Some people have bone, cartilage or fiber- like tissue between the shoulder blade and the spinal bones (vertebrae) next to it. Other features that have been found in association with Sprengel deformity include: scoliosis Klippel Feil syndrome limb length discrepancy an underdeveloped backbone (hemivertebrae) missing, fused, or extra ribs (cervical ribs) abnormalities of the collarbone abnormalities of the chest organs of the body displaced on the opposite side (ex: liver on the left and heart on the right) spina bifida occulta cleft palate The Human Phenotype Ontology provides the following list of signs and symptoms for Sprengel deformity. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the shoulder 90% Sprengel anomaly 90% Cleft palate 7.5% Autosomal dominant inheritance - Cervical segmentation defect - Hemivertebrae - Neck muscle hypoplasia - Rib segmentation abnormalities - Scoliosis - Shoulder muscle hypoplasia - Spina bifida occulta - Sporadic - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Question: What are the symptoms of Hunter Rudd Hoffmann syndrome ?

Answer: What are the signs and symptoms of Hunter Rudd Hoffmann syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Hunter Rudd Hoffmann syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormal dermatoglyphics 90% Abnormality of the distal phalanx of finger 90% Abnormality of the fingernails 90% Abnormality of the toenails 90% Clinodactyly of the 5th finger 90% Cognitive impairment 90% Convex nasal ridge 90% Craniosynostosis 90% Epicanthus 90% Hypotelorism 90% Intrauterine growth retardation 90% Low-set, posteriorly rotated ears 90% Narrow forehead 90% Prominent metopic ridge 90% Ptosis 90% Short stature 90% Trigonocephaly 90% Underdeveloped supraorbital ridges 90% Wide mouth 90% Wide nasal bridge 90% Abnormality of the palate 7.5% EEG abnormality 7.5% Hernia of the abdominal wall 7.5% Proptosis 7.5% Seizures 7.5% Ventricular septal defect 7.5% Broad secondary alveolar ridge - High palate - Inguinal hernia - Intellectual disability - Lambdoidal craniosynostosis - Low-set ears - Posteriorly rotated ears - Premature posterior fontanelle closure - Sagittal craniosynostosis - Small anterior fontanelle - Small for gestational age - X-linked recessive inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Question: What are the symptoms of Pallister W syndrome ?

Answer: What are the signs and symptoms of Pallister W syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Pallister W syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Acne 90% Broad forehead 90% Cognitive impairment 90% Eczema 90% Hypertonia 90% Macrotia 90% Mandibular prognathia 90% Narrow face 90% Short philtrum 90% Short stature 90% Strabismus 90% Wide nasal bridge 90% Camptodactyly of finger 50% Camptodactyly of toe 50% Cleft palate 50% Clinodactyly of the 5th finger 50% Cubitus valgus 50% Elbow dislocation 50% Hearing impairment 50% Hypertelorism 50% Median cleft lip 50% Non-midline cleft lip 50% Pes cavus 50% Seizures 50% Displacement of the external urethral meatus 7.5% Agenesis of central incisor - Agenesis of maxillary central incisor - Alternating esotropia - Broad nasal tip - Broad uvula - Camptodactyly - Clinodactyly - Depressed nasal bridge - Frontal bossing - Frontal upsweep of hair - Hypoplasia of the ulna - Intellectual disability - Joint contracture of the hand - Pes planus - Radial bowing - Radial deviation of finger - Spasticity - Submucous cleft hard palate - Telecanthus - X-linked inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Question: What is (are) LAMA2-related muscular dystrophy ?

Answer: LAMA2-related muscular dystrophy is a disorder that causes weakness and wasting (atrophy) of muscles used for movement (skeletal muscles). This condition generally appears in one of two ways: as a severe, early-onset type or a milder, late-onset form.  Early-onset LAMA2-related muscular dystrophy is apparent at birth or within the first few months of life. It is considered part of a class of muscle disorders called congenital muscular dystrophies and is sometimes called congenital muscular dystrophy type 1A. Affected infants have severe muscle weakness, lack of muscle tone (hypotonia), little spontaneous movement, and joint deformities (contractures). Weakness of the muscles in the face and throat can result in feeding difficulties and an inability to grow and gain weight at the expected rate (failure to thrive). Hypotonia also affects the muscles used for breathing, which causes a weak cry and breathing problems that can lead to frequent, potentially life-threatening lung infections.  As affected children grow, they often develop an abnormal, gradually worsening side-to-side curvature of the spine (scoliosis) and inward curvature of the back (lordosis). Children with early-onset LAMA2-related muscular dystrophy usually do not learn to walk unassisted. Speech problems may result from weakness of the facial muscles and tongue, but intelligence is usually normal. Heart problems and seizures occasionally occur in early-onset LAMA2-related muscular dystrophy. Because of the serious health problems that occur in this form of the disorder, many affected individuals do not survive past adolescence.  Late-onset LAMA2-related muscular dystrophy occurs later in childhood or in adulthood. Signs and symptoms of this form of the disorder are milder than in the early-onset type and are similar to those of a group of muscle disorders classified as limb-girdle muscular dystrophies. In late-onset LAMA2-related muscular dystrophy, the muscles most affected are those closest to the body (proximal muscles), specifically the muscles of the shoulders, upper arms, pelvic area, and thighs. Children with late-onset LAMA2-related muscular dystrophy sometimes have delayed development of motor skills such as walking, but generally achieve the ability to walk without assistance. Over time, they may develop rigidity of the back, joint contractures, scoliosis, and breathing problems. However, most affected individuals retain the ability to walk and climb stairs, and life expectancy and intelligence are usually not affected in late-onset LAMA2-related muscular dystrophy.