Cystosarcoma phyllode of the breast —now usually called a phyllodes tumor—is a rare breast growth that starts in the connective (stromal) tissue of the breast ...

A fibroepithelial breast lump is a growth in the breast made of two parts: fibrous (support) tissue and gland (milk-duct) tissue. The two main types are ...

A benign breast phyllodes tumor is a rare, fast-growing fibroepithelial breast lump made of breast ducts and a leaf-like (phyllodes) overgrowth of supporting ...

Benign angiitis of the central nervous system means inflammation of blood vessels inside the brain and spinal cord. “Benign” is an old word and not accurate, ...

Familial cortical myoclonic tremor with epilepsy is a rare, inherited brain disorder. It causes tiny, shock-like muscle jerks that look like a shaky tremor, ...

Autosomal dominant cortical myoclonus and epilepsy (ADCME) is a rare, inherited brain disorder. “Autosomal dominant” means one changed gene from either parent ...

Benign adult familial myoclonic epilepsy (BAFME) is a rare, inherited brain condition. It usually starts in late teenage years or during adult life. The main ...

Hemifacial hyperplasia-strabismus syndrome is a very rare condition where one side of the face grows more than the other, and the person also has eye ...

Hemifacial hyperplasia–strabismus syndrome is a very rare birth condition where one side of the face grows more than the other and the eyes do not point in the ...

Bencze syndrome is an extremely rare birth condition. It causes one side of the face to grow a little more than the other, and it often appears together with ...

Oculo-cerebral dysplasia describes very rare developmental conditions present from birth in which eye structures and the brain form abnormally, often alongside ...

Behrens-Baumann-Vogel syndrome is a very rare birth condition that affects the eyes and the brain. Babies are born with very small eyes (microphthalmia) and ...

Behrens-Baumann–Dust syndrome is a very rare, inherited condition that mainly affects the eyes and the brain. It was first described in two siblings who had ...

Behavioral variant frontotemporal dementia (bvFTD) is a progressive brain disorder that mainly damages the frontal and temporal lobes, the regions that control ...

Lethal hydrocephalus–cardiac malformation–dense bones syndrome is a very rare, likely genetic condition seen before birth or at delivery. Babies have ...

Benign pseudohypertrophic muscular dystrophy is an older name for Becker muscular dystrophy (BMD). It is a genetic, X-linked muscle disease. ...

Benign congenital myopathy means a group of genetic muscle problems that start at birth or early childhood. The main signs are soft muscles (low tone), weak ...

 X-linked recessive Becker muscular dystrophy (BMD) is a genetic muscle disease. It happens when a change (mutation) in the DMD gene lowers the amount or ...

Becker dystrophinopathy is a genetic muscle disease. It causes slow loss of muscle strength over time. It mostly affects boys and men. It happens because the ...

Becker muscular dystrophy (BMD) is a genetic muscle disease. It weakens muscles slowly over many years. It mainly affects boys and men. The problem is a change ...