Morbihan's disease was first reported as a distinct entity in 1957 by
Degos, describing a chronic persistent erythema and oedema of the uppe
r half of the face. Such conditions have been noted in the literature
designated as chronic lymphoedema or solid persistent facial oedema in
acne or rosacea. The characteristic features are a chronic course, a
typical clinical picture, lack of specific laboratory and histological
findings and refractoriness to therapeutic measures.