Please log in using your Derm101 Email/Username and Password to access the site.

Click here to Login | Subscribe to Derm101 Today!

Page Excerpt:

11.9.1A: Perivascular dermatosis, psoriasiform lichenoid + 11.9.1B: Preponderance of mononuclear (Langerhans”) cells with large pale nuclei and abundant amphophilic cytoplasm associated with a mix of inflammatory cells = Histiocytosis X (Letterer-Siwe disease) The diagnosis histopathologic depends on recognition of the distinctive abnormal Langerhans” cells. Numerous erythrocytes extravasated in the upper part of the dermis, and […]