X-linked creatine transporter deficiency is a genetic disorder that limits the transport of creatine, a molecule crucial for brain energy. This condit...

Creeping myiasis, also known as migratory myiasis, is a condition that has been described in clinical contexts although detailed definitions are not a...

Crescentic glomerulonephritis is a kidney condition identified by extensive crescent formation in the glomeruli. It is marked by a rapid deterioration...

CREST syndrome is a subtype of limited cutaneous systemic sclerosis. The name CREST is an acronym that stands for calcinosis, Raynaud's phenomenon, es...

Creutzfeldt Jacob disease is a rare, transmittable disorder that affects the brain. It is caused by prions, which are unusual proteins that lead to br...

Cribriform variant testicular seminoma is a distinct morphologic type of testicular seminoma, defined by a pattern where seminoma cells are arranged i...

Cri-du-chat syndrome, also known as 5p deletion syndrome, is a congenital chromosomal disorder characterized by a distinctive high-pitched, cat-like c...

Crigler-Najjar syndrome is a metabolic liver disorder that impairs the body’s ability to process bilirubin, leading to a buildup of unconjugated (indi...

Crigler-Najjar syndrome type 1 is a severe inherited liver disorder characterized by a complete absence of the enzyme activity required for bilirubin...

Crigler-Najjar syndrome type 2 is a hereditary disorder of bilirubin metabolism that results in elevated levels of unconjugated bilirubin due to reduc...

Crimean-Congo hemorrhagic fever (CCHF) is a viral disease that is spread by ticks. It is caused by the CCHF virus, which makes it a zoonotic disease,...

Criss-cross heart is a congenital cardiac malformation in which the inflow streams of the two ventricles cross as a result of the heart twisting about...

Critical illness polyneuropathy is an acquired disorder that affects the peripheral nerves, often emerging in the context of severe illness and intens...

Cronkhite-Canada syndrome (CCS) is a rare gastrointestinal condition where people develop multiple polyps (small growths) in the digestive tract. It i...

Crossed polydactyly, type I is a congenital condition characterized by an abnormal formation of the digits, where extra or misaligned fingers or toes...

Crossed polysyndactyly is a congenital limb malformation disorder characterized by extra digits on the hands and feet along with abnormal fusion of pa...

Crouzon syndrome is a rare condition characterized by the early fusion of skull bones (craniosynostosis) and underdevelopment of the face (facial hypo...

Crouzon syndrome with acanthosis nigricans (CAN) is a very rare condition that shows features similar to classic Crouzon syndrome. It is a type of fac...

CRX-related retinopathy is a rare eye condition where a change in the CRX gene leads to problems with the retina. The retina is the light-sensitive la...

Mixed cryoglobulinemia (MC) is a rare multisystem disease. It is defined by the presence of immune complexes in the blood that can precipitate at cool...