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Absence of Tibia
Absence of tibia is a rare birth defect that is characterized by deficiency of the tibia (the shinbone) with other bones of the lower leg relatively intact. The condition may affect one or both legs. Some cases are isolated birth defects, while others are associated with a variety of skeletal and other malformations.[1][2] It can…
Mehes syndrome
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 3038 Definition This syndrome is extremely rare and is characterized by delayed speech development, mild facial asymmetry, strabismus and transverse ear lobe creases. Epidemiology To date, six cases have been reported in five families. Clinical…
Split hand split foot malformation autosomal recessive
Split hand foot malformation (SHFM) is a type of birth defect that consists of missing digits (fingers and/or toes), a deep cleft down the center of the hand or foot, and fusion of remaining digits.[1][2] The severity of this condition varies widely among affected individuals. SHFM is sometimes called ectrodactyly; however, this is a nonspecific term used to describe missing…
Syndactyly type 5
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 93406 Definition Syndactyly type 5 (SD5) is a very rare congenital limb malformation characterized by postaxial syndactyly of hands and feet, associated with metacarpal and metatarsal fusion of fourth and fifth digits. Epidemiology So far,…
Primary hyperoxaluria type 2
Primary hyperoxaluria type 2 is a rare condition characterized by the overproduction of a substance called oxalate (also called oxalic acid). In the kidneys, the excess oxalate combines with calcium to form calcium oxalate, a hard compound that is the main component of kidney stones. Deposits of calcium oxalate can lead to kidney damage, kidney…
Tracheoesophageal fistula
Tracheoesophageal fistula (TEF) is a life-threatening condition in which there is an abnormal connection between the esophagus and trachea (windpipe). The esophagus and trachea run next to each other through the chest cavity. The esophagus carries food and saliva to the stomach, while the trachea carries air to the lungs. TEF can lead to severe…
AREDYLD
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 1133 Definition A syndrome that has been described in three individuals, one of whom was born to consanguineous parents. All patients had lipoatrophy, diabetes mellitus, generalized hypotrichosis, ectodermal dysplasia, renal alterations, dental abnormalities and other…
Dieulafoy lesion
Dieulafoy lesion is an abnormally large artery (a vessel that takes blood from the heart to other areas of the body) in the lining of the gastrointestinal system. It is most common in the stomach but can occur in other locations, including the small and large intestine. Dieulafoy lesions can cause severe and sudden gastrointestinal…
Trichoodontoonychial dysplasia
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46, XY disorders of sexual development
A 46, XY disorder of sex development (DSD) is a condition in which an individual with one X chromosome and one Y chromosome in each cell, the pattern normally found in males, have genitalia that is not clearly male or female. Infants with this condition tend to have penoscrotal hypospadias, abnormal development of the testes, and…
Late-Onset Familial Alzheimer Disease
Late-onset familial Alzheimer disease, is a form of familial Alzheimer disease, that begins after age 65. In general, Alzheimer disease (AD) is a degenerative disease of the brain that causes gradual loss of memory, judgement and the ability to function socially. The exact underlying cause of late-onset familial AD is not completely understood; however, researchers suspect…
Granulosa cell tumor of the ovary
Granulosa cell tumor of the ovary is a rare type of ovarian cancer that accounts for approximately 2% of all ovarian tumors. This type of tumor is known as a sex cord-stromal tumor and usually occurs in adults. Granulosa cell tumors of the ovary cause higher than normal levels of estrogen in a woman’s body. The symptoms of…
Juvenile-onset dystonia
Juvenile-onset dystonia is a form of dystonia, which is a movement disorder characterized by involuntary muscle contractions that cause repetitive movements and/or abnormal postures. The severity and frequency of the movements vary significantly; in some affected people, they may be barely noticeable while in others, the movements are severely disabling and painful. Dystonia can affect…
L-arginine:glycine amidinotransferase deficiency
L-arginine:glycine amidinotransferase (AGAT) deficiency is a rare condition that primarily affects the brain. People with AGAT deficiency generally have mild to moderate intellectual disability. Other signs and symptoms may include seizures, delayed language development, muscle weakness, failure to thrive, autistic behaviors, and delayed motor milestones (i.e. walking, sitting). AGAT deficiency is caused by changes (mutations)…
Epidermolysa bullosa simplex with muscular dystrophy
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 257 Definition Epidermolysis bullosa simplex with muscular dystrophy (EBS-MD) is a basal subtype of epidermolysis bullosa simplex (EBS, see this term) characterized by generalized blistering associated with muscular dystrophy. Epidemiology Prevalence is unknown, but more…
Allan-Herndon-Dudley syndrome
Allan-Herndon-Dudley syndrome is a disorder of brain development that causes moderate to severe intellectual disability and problems with movement. This condition, which occurs exclusively in males, disrupts development from before birth. Although affected males have speech and a limited ability to communicate, they seem to enjoy interaction with others. Allan-Herndon-Dudley syndrome is caused by mutations…
Pituitary stalk interruption syndrome
Pituitary stalk interruption syndrome (PSIS) is a congenital abnormality of the pituitary gland characterized by the triad of a very thin or interrupted pituitary stalk, a misplaced (ectopic) or absent posterior pituitary and a small or absent anterior pituitary, with permanent growth hormone (GH) deficit.[1][2] Signs and symptoms in newborns include low blood sugar levels (hypoglycemia),…
Trichostasis spinulosa
Trichostasis spinulosa (TS) is a condition where instead of one hair protruding from a hair follicle, a bundle or bush of hair come out of a single follicle. This results in elevated, dark spiny papules on the head, face (usually the nose), and trunk. In this condition, there are numerous tiny open pores filled with…
ALG6-CDG (CDG-Ic)
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 79320 Definition A form of congenital disorders of N-linked glycosylation characterized by feeding problems, mild-to-moderate neurologic involvement with hypotonia, poor head control, developmental delay, ataxia, strabismus, and seizures, ranging from febrile convulsions to epilepsy. Retinal…
Endometrial stromal sarcoma
Endometrial stromal sarcoma is a rare form of cancer that occurs due to abnormal and uncontrolled cell growth in the uterus. Endometrial stromal sarcoma, specifically, develops in the supporting connective tissue (stroma) of the uterus. Signs and symptoms of the condition include abnormal uterine bleeding (i.e. bleeding that is not part of menstrual periods or…
Eosinophilic pustular folliculitis
Eosinophilic pustular folliculitis (EPF) is a skin disorder characterized by recurring itchy, red or skin-colored bumps and pustules (bumps containing pus).[1] The condition is named after the fact that skin biopsies of this disorder find eosinophils (a type of immune cell) around hair follicles. The papules mostly appear on the face, scalp, neck and trunk and may…
Autosomal dominant Alport syndrome
Autosomal dominant Alport syndrome is a genetic condition characterized by kidney disease, hearing loss, and eye abnormalities. Most affected individuals experience progressive loss of kidney function, usually resulting in end-stage kidney disease. People with Alport syndrome frequently develop sensorineural hearing loss in late childhood or early adolescence. The eye abnormalities seen in this condition seldom lead…
Keratolytic winter erythema
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 50943 Definition Keratolytic winter erythema is a rare epidermal disease, characterized by recurrent centrifugal palmoplantar peeling and erythema presenting seasonal variation (cold weather). Skin lesions may spread to the dorsum of hands and feet and…
Fatty acid hydroxylase-associated neurodegeneration
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 329308 Definition Fatty acid hydroxylase-associated neurodegeneration (FAHN) is a very rare, autosomal recessive form of neurodegeneration with brain iron accumulation (NBIA) characterized by childhood-onset focal dystonia, progressive spastic paraplegia that progresses to tetra paresis, ataxia,…
Iron-refractory iron deficiency anemia
Iron-refractory iron deficiency anemia (IRIDA) is a type of iron deficiency anemia that typically does not improve with oral iron treatment. Children with IRIDA have too little iron in their blood, which causes their red blood cells to be small (microcytic) and pale (hypochromic). The anemia tends to be mild to moderate, but without enough…
Extranodal nasal NK/T cell lymphoma
Extranodal nasal NK/T cell lymphoma (NKTCL) is a rare type of cancer. The term extranodal is used because this form of lymphoma is found outside of the traditional lymph node groupings. It mainly affects men around 50 years of age, and usually arises in the nose, paranasal sinuses (paranasal sinuses are cavities (spaces) or small tunnels….
Familial primary hypomagnesemia
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 34526 Definition A rare mineral absorption and transport disorder characterized by a selective defect in renal or intestinal magnesium (Mg) absorption, resulting in a low Mg concentration in the blood. Epidemiology To date, more than…
Goodpasture syndrome
Goodpasture syndrome is an autoimmune disease that affects the lungs and kidneys and is characterized by pulmonary alveolar hemorrhage (bleeding in the lungs) and a kidney disease known as glomerulonephritis. Some use the term “Goodpasture syndrome” for the findings of glomerulonephritis and pulmonary hemorrhage and the term “Goodpasture disease” for those patients with glomerulonephritis, pulmonary…
Persistent Müllerian duct syndrome
Persistent Müllerian duct syndrome (PMDS) is affects the development of the sexual organs in males. Males with PMDS have normal testes and normal male external genitals. However, they also have a uterus and fallopian tubes (female reproductive organs). Early signs of PMDS may include undescended testes (cryptorchidism) or inguinal hernias. The uterus and fallopian tubes…
Limb-body wall complex
Limb-body wall complex (LBWC) is a condition characterized by multiple, severe congenital abnormalities in a fetus. It typically results in openings in the anterior body wall (chest and belly) and defects of the limbs (arms and legs). Other features of LBWC may include facial clefts; a short or missing umbilical cord; scoliosis; neural tube defects;…
Spinal intradural arachnoid cysts
Spinal intradural arachnoid cysts are cerebrospinal fluid-filled sacs that are located between the spinal cord and the arachnoid membrane (one of the three membranes that cover the brain and spinal cord). The signs and symptoms of the condition vary based on the size and location of the cysts. Some affected people may have no suspicious…
Frasier syndrome
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 347 Definition A rare genetic, syndromic glomerular disorder characterized by the association of progressive glomerular nephropathy and 46,XY complete gonadal dysgenesis with a high risk of developing gonadoblastoma. Epidemiology To date, less than 150 cases…
Genito palato cardiac syndrome
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 2075 Definition Genitopalatocardiac syndrome is a rare, multiple congenital anomalies/dysmorphic syndrome characterized by male, 46,XY gonadal dysgenesis, cleft palate, micrognathia, conotruncal heart defects and unspecific skeletal, brain and kidney anomalies. Visit the Orphanet disease page…
Malignant Atrophic Papulosis
Degos disease is a rare blood vessel disorder. It is characterized by blockages of small to medium sized blood vessels. This slows or stops the flow of blood through the affected vessels. Severity of symptoms depends on the extent and location of the affected blood vessels. Some individuals with Degos disease have isolated skin involvement…
Autoimmune myocarditis
Autoimmune myocarditis is an autoimmune disease that affects the heart. The condition is characterized by inflammation of the heart muscle (myocardium). Some people with autoimmune myocarditis have no noticeable symptoms of the condition. When present, signs and symptoms may include chest pain, abnormal heartbeat, shortness of breath, fatigue, signs of infection (i.e. fever, headache, sore…
MBD25–related intellectual disability
MBD25–related intellectual disability, or MBD25 haploinsufficiency, is a neurological and developmental disorder characterized by developmental delay, intellectual disability, speech problems, seizures, sleep troubles, and abnormal behaviors. Most children lack speech entirely or may only be able to use single words, short phrases, or short sentences. Seizures are present in about 80% and usually begin around age two…
Glycogen storage disease type 1B
Glycogen storage disease type 1B (GSD1B) is an inherited condition in which the body is unable to break down a complex sugar called glycogen. As a result, glycogen accumulates in cells throughout the body. In GSD1B, specifically, glycogen and fats build up within the liver and kidneys which can cause these organs to be enlarged…
Severe generalized recessive dystrophic epidermolysis bullosa
Severe generalized recessive dystrophic epidermolysis bullosa is the most severe types of dystrophic epidermolysis bullosa. The signs and symptoms of this condition involve widespread blistering that can lead to vision loss, disfigurement, and other serious medical problems. As the blisters heal, they result in severe scarring. Scarring in the mouth and esophagus can make it difficult to…
Primary angiitis of the central nervous system
Primary angiitis of the central nervous system is a rare form of vasculitis (inflammation of blood vessels) affecting the blood vessels that nourish the brain, spinal cord and peripheral nerves. This condition can lead to narrowing and blockage of the blood vessels of the central nervous system which can eventually cause aneurysms, ischemia and/or hemmorrhage. The cause…
Melioidosis
Melioidosis is an infectious disease caused by the bacteria Burkholderia pseudomallei that are commonly found in the soil and water.[1] Melioidosis is a rare disease in the United States, but it is common in tropical or subtropical areas of the world, including Southeast Asia, Africa, and Australia.[2][3] The signs and symptoms of the disease can…
Progeria
Progeria leads to extreme premature aging and affects many different body systems. The symptoms begin within a year of life with poor growth and weight gain. Children with progeria have a characteristic facial appearance with a large head, small mouth and chin, narrow nose and large eyes. Other symptoms include baldness, loss of fat under the…
Sinonasal undifferentiated carcinoma
Sinonasal undifferentiated carcinoma (SNUC) is a type of cancer that develops in the sinuses of the head. SNUC occurs when cells from the layer of tissue that lines the sinuses (called the epithelium) rapidly increase in number, forming a mass. The first symptoms of SNUC may include difficulty breathing though the nose or mild facial pain….
GM1 gangliosidosis
GM1 gangliosidosis is an inherited lysosomal storage disorder that progressively destroys nerve cells (neurons) in the brain and spinal cord. The condition may be classified into three major types based on the general age that signs and symptoms first appear: classic infantile (type 1); juvenile (type 2); and adult onset or chronic (type 3). Although…
Hypophosphatemic rickets
Hypophosphatemic rickets (previously called vitamin D-resistant rickets) is a disorder in which the bones become painfully soft and bend easily, due to low levels of phosphate in the blood.[1] Symptoms usually begin in early childhood and can range in severity. Severe forms may cause bowing of the legs and other bone deformities; bone pain; joint…
Blepharophimosis intellectual disability syndromes
Blepharophimosis intellectual disability syndromes refers to a group of syndromes, including Ohdo syndrome and Say Barber Biesecker Young-Simpson syndrome, that are characterized by narrow eye openings (blepharophimosis), drooping of the upper eye lids (ptosis) and intellectual disability. Dr. Ohdo published an article in 1986 describing the first three cases of this syndrome (in a brother, sister, and cousin).[1][2] Since that time many other case…
Rickets
Rickets is a condition that causes children to have soft, weak bones. It usually occurs when children do not get enough vitamin D, which helps growing bones absorb important nutrients. Vitamin D comes from sunlight and food. Skin produces vitamin D in response to the sun’s rays. Some foods also contain vitamin D, including fortified…
Pachydermoperiostosis
Pachydermoperiostosis is a rare disorder characterized by clubbing of the fingers and toes; thickening of the skin of the face (pachyderma); excessive sweating (hyperhidrosis); and new bone formation associated with joint pain.[1][2] Other features may include congenital heart disease and delayed closure of fontanelles.[2] This condition typically appears during childhood or adolescence, often around the time of puberty,…
Fuhrmann syndrome
Fuhrmann syndrome is a very rare genetic syndrome characterized by skeletal abnormalities. It is a type of skeletal dysplasia. Signs and symptoms of Fuhrmann syndrome are present from birth and may include bowing of the femurs (the upper bones of the legs), having no fibula (lower bone of the leg) or a smaller fibula than usual, and having more fingers or…
Partington syndrome
Partington syndrome is a rare neurological condition that is primarily characterized by mild to moderate intellectual disability and dystonia of the hands. Other signs and symptoms may include dysarthria, behavioral abnormalities, recurrent seizures and/or an unusual gait (style of walking). Partington syndrome usually occurs in males; when it occurs in females, the signs and symptoms…
Brenner tumor of ovary
Brenner tumor of the ovary is a solid, abnormal growth (tumor) on the ovary. Most Brenner tumors are not cancerous (benign). About 5% of Brenner tumors are cancerous (malignant) or have a small chance of spreading beyond its original location (borderline).[1][2][3] These tumors most often occur in women after menopause. They usually do not cause…
Isolated levocardia
Isolated levocardia is a type of situs inversus where the heart is located in the normal position, but there is a mirror-image reversal of other internal organs.[1] Isolated levocardia may occur alone or with heart defects, heart rhythm abnormalities (sick sinus syndrome or atrioventricular node disorder), spleen defects (absent, underdeveloped, or extra spleen), and intestinal…
Microcephaly deafness syndrome
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 2533 Definition Microcephaly-deafnessintellectual disability syndrome is characterised by microcephaly, deafness, intellectual deficit and facial dysmorphism (facial asymmetry, prominent glabella, low-set and cup-shaped ears, protruding lower lip, micrognathia). It has been described in a mother and…
Camptodactyly taurinuria
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 1325 Definition Camptodactyly-taurinuria syndrome is a congenital malformation syndrome characterized by the association of a permanent camptodactyly of the fingers (see this term) with the over excretion of taurine in the urine. Camptodactyly mainly affects…
Renal medullary carcinoma
Renal medullary carcinoma is a rare kidney cancer that mostly affects young people with African ancestry.[1] The tumor develops in the medulla of the kidney. The first sign is often blood in the urine (hematuria). Patients may also develop flank pain or feel a lump in the abdomen that is usually on the right side of the…
Carcinoid syndrome
Carcinoid syndrome refers to a group of symptoms that are associated with carcinoid tumors (rare, slow-growing tumors that occur most frequently in the gastroinestinal tract or lungs). Affected people may experience skin flushing, abdominal pain, diarrhea, difficulty breathing, rapid heart rate, low blood pressure, skin lesions on the face (telangiectasias), and wheezing. In later stages,…
Ledderhose disease
Ledderhose disease is a type of plantar fibromatosis characterized by the growth of hard and round or flattened nodules (lumps) on the soles of the feet.[1] It is generally seen in middle-aged and elderly people, and occurs in men about 10 times more often than in women. It typically affects both feet and progresses slowly,…
Carney triad
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 139411 Definition A rare non-hereditary condition characterized by gastrointestinal stromal tumors (GIST, intramural mesenchymal tumors of the gastrointestinal tract with neuronal or neural crest cell origin), pulmonary chondromas and extraadrenal paragangliomas. Epidemiology Less than 100…
Rare Gastroenterology News