Am J Dermatopathol 2017 Nov 10. Epub 2017 Nov 10.
*Department of Dermatology, Medical Military Academy, Saint Petersburg, Russia; †Department of Pathology, North-Western State Medical University, Saint Petersburg, Russia; and ‡Sikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic.
Mycosis fungoides (MF) is the most common form of primary cutaneous lymphoma with a broad clinicopathological spectrum. Unusual histopathologic patterns of MF include lichenoid, interstitial, folliculotropic, spongiotic, granulomatous, and many others. Several cases of unusual lichenoid reaction characterized by a mixed lichenoid inflammatory infiltrate with prominent infiltration of the papillary dermis and epidermis by multinucleated giant cells were described under the name of "giant cell lichenoid dermatitis," most of them were considered to represent a drug eruption. Read More