Bainbridge-Ropers syndrome is a rare genetic disorder characterized by intellectual disability, delayed development, and distinctive facial features. It is caused by a mutation in the MED12 gene. Symptoms may include low muscle tone, seizures, and...

A balance disorder is a condition that makes you feel unsteady or dizzy, as if you are moving, spinning, or floating, even though you are standing still or lying down. Balance disorders can be caused by certain health conditions, medications, or a...

Balantidiasis is a rare intestinal infection caused by the bacterium, Balantidium coli, a single celled parasite (ciliate protozoan) that frequently infects pigs but on occasion (rarely) infects humans. Some infected people may have no symptoms or...

Balantidiasis is an infection caused by the parasite Balantidium coli. It is a rare infection that is most commonly found in developing countries, and it is spread through contact with contaminated food or water. Symptoms of balantidiasis include ...

Balint syndrome is a rare neurological disorder characterized by three primary symptoms: simultanagnosia (inability to perceive more than one object at a time), oculomotor apraxia (inability to move the eyes in a coordinated fashion), and optic at...

Baller-Gerold Syndrome is a rare genetic disorder that is apparent at birth (congenital). The disorder is characterized by distinctive malformations of the skull and facial (craniofacial) area and bones of the forearms and hands. In in...

Baller-Gerold Syndrome is a rare genetic disorder that affects the development of bones and other tissues. It is caused by a mutation in the RECQL4 gene. Symptoms of the disorder include skeletal abnormalities, facial dysmorphism, intellectual dis...

Balo concentric sclerosis is a rare neurological disorder characterized by alternating layers of demyelination and remyelination in the central nervous system. It is a type of multiple sclerosis (MS) and is considered to be a variant of MS. Sympto...

Balo Disease is a rare and progressive variant of multiple sclerosis. It usually first appears in adulthood, but childhood cases have also been reported. While multiple sclerosis typically is a disease that waxes and wanes, Balo Disease is differe...

Bamforth-Lazarus syndrome is a rare genetic disorder characterized by a combination of physical and mental disabilities. It is caused by a mutation in the gene that codes for the enzyme dihydropyrimidine dehydrogenase (DPD). Symptoms of the disord...

Bangstad syndrome is a rare genetic disorder characterized by a combination of physical and mental disabilities. It is caused by a mutation in the gene that codes for the enzyme dihydropyrimidine dehydrogenase (DPD). Symptoms of Bangstad syndrome ...

Banki syndrome is a rare disorder characterized by the presence of multiple cysts in the pancreas. It is also known as pancreatic cystic hamartoma or pancreatic cystic neoplasm. Symptoms of Banki syndrome may include abdominal pain, nausea, vomiti...

Bannayan-Riley-Ruvalcaba syndrome (BRRS) is a rare genetic disorder characterized by macrocephaly (an abnormally large head), lipomas (benign fatty tumors), and intestinal hamartomatous polyps. It is caused by a mutation in the PTEN gene, which is...

Bantia's Syndrome is a rare genetic disorder characterized by a combination of physical and mental disabilities. It is caused by a mutation in the gene that codes for the protein dystrophin. Symptoms of Bantia's Syndrome include intellectual disab...

BAP1-related tumor predisposition syndrome is an inherited disorder caused by mutations in the BAP1 gene. People with this syndrome have an increased risk of developing certain types of cancer, including mesothelioma, melanoma, and uveal melanoma....

Baraitser-Winter cerebrofrontofacial syndrome (BWS) is a rare genetic disorder characterized by distinctive facial features, intellectual disability, and a variety of other physical and neurological abnormalities. It is caused by a mutation in the...