bowang0911/MedQuAD huggingface dataset:
Merkel cell carcinoma (MCC) is a rare type of skin cancer that usually appears as a single, painless, lump on sun-exposed skin. It is typically red or violet in color. It is considered fast-growing and can spread quickly to surrounding tissues, nearby lymph nodes, or more distant parts of the body. Merkel cell polyomavirus has been detected in about 80% of the tumors tested. It is thought that this virus can cause somatic mutations leading to MCC when the immune system is weakened. Other risk factors for developing MCC include ultraviolet radiation and being over 50 years of age. Treatment should begin early and depends on the location and size of the cancer, and the extent to which it has spread.
What causes Merkel cell carcinoma? The exact underlying cause of Merkel cell carcinoma (MCC) is unknown, but several risk factors have been associated with the development of MCC. Having one or more risk factors does not mean that a person will develop MCC; most individuals with risk factors will not develop MCC. Risk factors include:     -being over 50 years of age     -having fair skin     -having a history of extensive sun exposure (natural or artificial)     -having chronic immune suppression, such as after organ transplantation or having HIV Researchers have also found that a virus called Merkel cell polyomavirus (MCPyV) is frequently involved in the development of MCC. MCPyV is found in about 80% of tumor cells tested. This virus is thought to alter the DNA in such a way that influences tumor development.
Is Merkel cell carcinoma inherited? To our knowledge, there currently is no evidence that Merkel cell carcinoma (MCC) is inherited. While DNA changes (mutations) found in the cells of MCC tumors can lead to MCC, these types of mutations are not inherited from a person's parents. They are referred to as somatic mutations and occur during a person's lifetime, often as random events. Sometimes, something in the environment can lead to a somatic mutation, such as long-term sun exposure or infection with the Merkel cell polyomavirus. These are known risk factors for developing MCC.
Gigantomastia is a rare condition that is characterized by excessive breast growth that may occur spontaneously, during puberty or pregnancy, or while taking certain medications. To date, there is no universally accepted definition for gigantomastia; however, Dancey et al. (2007) state that a review of the medical literature suggests that definitions range from a D-cup bra size to breast enlargement requiring reduction of over 0.8 - 2 kg, which is equivalent to about 1.75 - 4.5 pounds. The exact cause of gigantomastia has not been determined. Nonetheless, the following theories have been proposed to explain gigantomastia: (1) end-organ hypersensitivity (a condition in which the breast tissue is more sensitive to hormones circulating in the body), (2) autoimmune issues, (3) high IGF-1 (insulin growth factor-1, a hormone involved in regulating bone growth) and (4) hyperprolactanemia (high levels of prolactin). Gigantomastia has been noted as a side effect of treatment with certain medications like D-pencillamine and in one case as an apparently hereditary condition. Symptoms of gigantomastic may include mastalgia (breast pain), ulceration/infection, posture problems, back pain and chronic traction injury to 4th/5th/6th intercostal nerves with resultant loss of nipple sensation. It is may also associated with decreased fetal growth, if the gigantomastia is present during pregnancy. Treatment is based on the person's symptoms and may include breast reduction, mastectomy with or without reconstruction, hormonal treatment, or a combination of treatments.
What treatment might be available for someone who has had recurrence of gigantomastia following a breast reduction? Breast reduction with or without hormonal therapy is often the first line of treatment for women who have gigantomastia. However, recurrence of gigantomastia may occur, requiring a second breast reduction procedure or mastectomy. Mastectomy might be recommended following recurrence of gigantomastia after breast reduction, especially in those patients who have  gigantomastia associated with puberty or pregnancy.  It is important to discuss this information with a health care provider in order to determine what treatment might be appropriate.
Toxocariasis is a parasitic condition caused by the larvae of two species of Toxocara roundworms: Toxocara canis (from dogs) and Toxocara cati (from cats). Many people who are infected with Toxocara never develop any signs or symptoms of the condition. In those who do become sick, symptoms may present as: Ocular Toxocariasis - when the larvae infect the eye and cause vision loss, eye inflammation, and/or damage to the retina. Visceral Toxocariasis - when the larvae infect various organs of the body (i.e. the liver or the central nervous system) and cause fever, fatigue, coughing, wheezing, and/or abdominal pain. Toxocariasis is generally spread through dirt that has been contaminated with animal feces that contain infectious Toxocara eggs. Young children and owners of dogs and cats have a higher chance of becoming infected. Visceral toxocariasis is treated with antiparasitic medications. Treatment of ocular toxocariasis is more difficult and usually consists of measures to prevent progressive damage to the eye.
What are the signs and symptoms of Immunoglobulin A deficiency 2? The Human Phenotype Ontology provides the following list of signs and symptoms for Immunoglobulin A deficiency 2. 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 cells of the lymphoid lineage - Autoimmunity - IgA deficiency - Recurrent infection of the gastrointestinal tract - Recurrent sinopulmonary infections - 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 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.
What are the signs and symptoms of Van Bogaert-Hozay syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Van Bogaert-Hozay 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) Abnormality of the hair - Abnormality of the pinna - Astigmatism - Autosomal recessive inheritance - Depressed nasal bridge - Distal ulnar hypoplasia - Intellectual disability, mild - Misalignment of teeth - Myopia - Osteolytic defects of the phalanges of the hand - 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.
Valinemia is a very rare metabolic disorder characterized by abnormally high levels of the amino acid valine in the blood and urine. Infants with valinemia reportedly experience lack of appetite, vomiting, and failure to thrive. In some cases, the condition may be life-threatening. Low muscle tone (hypotonia), excessive drowsiness, hyperactivity, and developmental delay have also been reported. Valinemia is caused by a deficiency of the enzyme valine transaminase, which is needed for the breakdown (metabolism) of valine in the body. It is inherited in an autosomal recessive manner, although the gene responsible for the condition is not yet known. Treatment includes a diet low in valine (introduced during early infancy) which usually improves symptoms and brings valine levels to normal.
What are the signs and symptoms of Valinemia? Valinemia is thought to be extremely rare and has been described in only a few people. The condition is reportedly present from birth. Symptoms in the newborn period include lack of appetite, protein intolerance, metabolic acidosis, frequent vomiting, failure to thrive, and/or coma. The condition can become life-threatening. Abnormally low muscle tone (hypotonia); hyperkinesia; hyperactivity; excessive drowsiness; and delayed mental and physical development have also been reported. The Human Phenotype Ontology provides the following list of signs and symptoms for Valinemia. 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) Autosomal recessive inheritance - Drowsiness - Failure to thrive - Hyperkinesis - Hypervalinemia - Muscle weakness - Vomiting - 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.
Lymphocytic infiltrate of Jessner is a skin condition characterized by single or multiple small, nonscaly, red, bumps on the face, neck, and upper back. The bumps can enlarge to create a red plaque. Rarely, the skin lesions cause burning or itching. The condition tends to last for several months, sometimes longer. The lesions may fluctuate between periods of worsening and periods of improvement. Currently, the cause is not known.
What are the signs and symptoms of Lymphocytic infiltrate of Jessner? The Human Phenotype Ontology provides the following list of signs and symptoms for Lymphocytic infiltrate of Jessner. 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 lymphocytes 50% Cutaneous photosensitivity 50% Pruritus 50% 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.
How might lymphocytic infiltrate of Jessner be treated? Lymphocytic infiltrate of Jessner may require no treatment (since it can resolve spontaneously), but some patients benefit from cosmetic camouflage, photoprotection, excision of small lesions, topical steroids, intralesional steroids, oral hydroxychloroquine, systemic steroids, cryotherapy, methotrexate, thalidomide, and/or oral auranofin. There has been one case report describing treatment with a pulsed-dye laser that worked effectively in this patient after a single treatment without adverse side effects. This and further information on treatment of lymphocytic infiltrate of Jessner is available at the following link to the eMedicine online reference Web site: http://emedicine.medscape.com/article/1098654-treatment
What are the signs and symptoms of Symphalangism with multiple anomalies of hands and feet? The Human Phenotype Ontology provides the following list of signs and symptoms for Symphalangism with multiple anomalies of hands and feet. 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% Finger syndactyly 90% Symphalangism affecting the phalanges of the hand 90% Brachydactyly syndrome 50% Macrocephaly 50% Hearing impairment 7.5% Kyphosis 7.5% Tarsal synostosis 7.5% Absent dorsal skin creases over affected joints - Autosomal dominant inheritance - Clinodactyly of the 5th toe - Cutaneous finger syndactyly - Proximal symphalangism (hands) - Reduced proximal interphalangeal joint space - Small hypothenar eminence - Small thenar eminence - Toe syndactyly - 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.
Brooke-Spiegler syndrome is a condition characterized by multiple skin tumors that develop from structures associated with the skin, such as sweat glands and hair follicles. People with Brooke-Spiegler syndrome may develop several types of tumors, including growths called spiradenomas, trichoepitheliomas, and cylindromas. The tumors associated with Brooke-Spiegler syndrome are generally benign (noncancerous), but occasionally they may become malignant (cancerous). Individuals with Brooke-Spiegler syndrome are also at increased risk of developing tumors in tissues in other areas, particularly benign or malignant tumors of the salivary or parotid glands and basal cell carcinomas. Brooke-Spiegler syndrome is caused by mutations in the CYLD gene. Susceptibility to Brooke-Spiegler syndrome has an autosomal dominant pattern of inheritance, which means one copy of the altered gene in each cell increases the risk of developing this condition. However, a second, non-inherited mutation is required for development of skin appendage tumors in this disorder.
What are the signs and symptoms of Brooke-Spiegler syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Brooke-Spiegler 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) Adult onset - Autosomal dominant inheritance - Milia - Neoplasm - 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.
Norum disease is an autosomal recessive disorder of lipoprotein metabolism that causes a typical triad of diffuse corneal opacities, target cell hemolytic anemia, and proteinuria with renal (kidney) failure. Two clinical forms are recognized: familial LCAT deficiency and fish-eye disease. Familial LCAT deficiency is associated with a complete absence of alpha and beta LCAT activities and results in esterification anomalies involving both HDL (alpha-LCAT activity) and LDL (beta-LCAT activity).
What are the signs and symptoms of Norum disease? Norum disease is marked by low plasma HDL levels and corneal clouding due to accumulation of cholesterol deposits in the cornea ('fish-eye'). Corneal opacity is often present at birth, beginning at the periphery of the cornea and progressing gradually to the center. Hemolytic anemia, and proteinuria are other common findings. This condition may also present with: Papilledema (swelling of the optic nerve) with impaired ocular blood supply, leading to functional visual loss Signs of renal insufficiency, including hypertension Signs of atherosclerosis Xanthelasma (in end-stage disease) Hepatomegaly Splenomegaly Lymphadenopathy The Human Phenotype Ontology provides the following list of signs and symptoms for Norum disease. 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) Autosomal recessive inheritance - Hemolytic anemia - Hypertriglyceridemia - Hypoalphalipoproteinemia - Normochromic anemia - Opacification of the corneal stroma - Proteinuria - Renal insufficiency - 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.
How might Norum disease be treated? Symptomatic treatment for anemia, renal insufficiency, and atherosclerosis is indicated. LCAT gene therapy or liver transplantation theoretically would be a treatment of choice to correct the underlying pathophysiology, but neither procedure has been reported. Short-term whole blood or plasma transfusion has been tried to replace the LCAT enzyme in some patients with familial LCAT deficiency, but it did not correct anemia, proteinuria, or lipoprotein abnormalities. Renal replacement by dialysis is necessary in those individuals who develop kidney failure. Kidney transplantation is indicated in patients with familial LCAT deficiency and renal failure. Corneal transplantation is indicated in patients with corneal opacities with severely reduced vision. Restriction of fat intake may be advisable in patients with familial LCAT deficiency, but no evidence supports its potential benefits. Because of the small but measurable risk of atherosclerosis in persons with LCAT deficiency, exercise, under the guidance of a physician, theoretically would have a role in prevention of this complication.