Dwarfism-onychodysplasia is another name for a rare genetic condition called Coffin–Siris syndrome. It is a disorder that affects many parts of the body, ...

Fetal encasement syndrome, also called cocoon syndrome, is a very rare and very severe problem that happens very early in pregnancy when the baby is still an ...

Cobblestone lissencephaly without muscular or ocular involvement is a very rare brain development problem that starts before birth. In this condition, the ...

Cloverleaf skull–multiple congenital anomalies syndrome is a very rare condition that a baby is born with. In this syndrome, the bones of the skull close too ...

Benallegue-Lacete syndrome is an extremely rare birth condition that affects how the baby’s bones and skull grow before birth. It is also called a syndromic ...

Cloverleaf skull-asphyxiating thoracic dysplasia syndrome is an extremely rare genetic bone disorder that affects a baby before birth. In this syndrome, the ...

Kleeblattschadel deformity, also called cloverleaf skull, is a very rare birth problem where a baby’s skull looks like a three-lobed cloverleaf. This happens ...

Cloverleaf skull deformity is a very rare problem where a baby’s skull looks like a three-leaf clover when seen from the front. The head has three rounded ...

Cloverleaf skull syndrome is a rare problem where a baby’s skull grows in a three-lobed shape that looks like a cloverleaf. This happens because several soft ...

Clouston syndrome is a rare condition that a person is born with. It mainly affects three things in the body: the hair, the nails, and the skin on the palms of ...

Exstrophy of cloaca sequence is a very rare birth defect. It happens very early in pregnancy, when the baby is still an embryo. In this condition, the lower ...

Cloacal exstrophy is a very rare birth defect. It happens when a baby’s lower tummy (abdomen), bladder, intestines, bottom (anus), and sometimes the spine and ...

Cleft palate with intestinal malrotation and cardiopathy syndrome (often described as cleft lip/palate–intestinal malrotation–cardiopathy syndrome) is an ...

Margarita type of ectodermal dysplasia is a very rare genetic condition where a child is born with changes in the lips and palate, skin, hair, nails, and ...

Prieur–Griscelli syndrome is another name for a very rare disease called neonatal-onset multisystem inflammatory disease (NOMID) or chronic infantile ...

Chorea-acanthocytosis (often shortened to ChAc) is a very rare inherited brain and blood disease. It mainly affects movement, behaviour, and thinking. In this ...

Notochordal sarcoma is another name doctors sometimes use for chordoma, a rare cancer that starts from tiny leftover pieces of the embryo’s notochord (a soft ...

Cholestasis of pregnancy, also called intrahepatic cholestasis of pregnancy (ICP), is a liver problem that happens only during pregnancy. In this condition, ...

Choanal atresia with radial ray hypoplasia is a very rare birth syndrome. In this condition, the back part of the nose (the choanae) is blocked or too narrow, ...

Neuroectodermal syndromes is a broad name for a group of rare genetic disorders that start very early in life, when the baby is still forming in the womb. The ...