Recessive dystrophic epidermolysis bullosa (also known as "Hallopeau–Siemens variant of epidermolysis bullosa" and "Hallopeau–Siemens disease") is a skin condition resulting from mutations in the gene encoding type VII collagen, COL7A1, characterized by debilitating oral lesions that produce pain, scarring, and microstomia.

It is named for François Henri Hallopeau

François Henri Hallopeau

François Henri Hallopeau was a French dermatologist. He studied medicine under Alfred Vulpian and Sigismond Jaccoud. He co-founded and was secretary general of the Société Française de dermatologie et de syphiligraphie. He became a member of the Académie de Médecine in 1893.He coined the medical...

 and Hermann Werner Siemens

Hermann Werner Siemens

Hermann Werner Siemens was a German dermatologist who first described many skin diseases and was one of the inventors of the twin study.-Biography:...

.

External links

• CNN account of one patient's ordeal