Proteus Syndrome

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Proteus Syndrome

Hamartoneoplastic malformation syndrome of uncertain etiology characterized by partial gigantism of the hands and/or feet, asymmetry of the limbs, plantar hyperplasia, hemangiomas, lipomas, lymphangiomas, epidermal nevi, macrocephaly, cranial hyperostoses, and long-bone overgrowth. Joseph Merrick, the so-called "elephant man", apparently suffered from Proteus syndrome and not neurofibromatosis, a disorder with similar characteristics.