A thickened basement membrane is a clue to...lichen sclerosus!
LeBoit
P E
PE
Dermatopathology Section, University of California, San Francisco 94115, USA.
D001485:Basement Membrane / Q000473:pathology; D003872:Dermatitis / Q000473:pathology; D006801:Humans; D018459:Lichen Sclerosus et Atrophicus / Q000473:pathology*