Acta Dermato-Venereologica 98-4CompleteContent | Page 26

471 A Longstanding Nodule on the Temple: A Quiz Dominic TABOR, Stephanie BALL, Asok BISWAS and Lisa NAYSMITH Department of Dermatology, Lauriston Building, Lauriston Place, Edinburgh, EH3 9HA, Scotland. E-mail: [email protected] A 65-year-old man presented with an 8-year history of a slowly enlarging, asymptomatic nodule on his left temple (Fig. 1), which was erythematous and telangiectatic on examination, but otherwise bland dermoscopically. He was systemically well, but had a background of schizophrenia and type 2 diabetes mellitus. Full skin survey and computed tomography of the chest, abdomen and pelvis did not reveal any other abnormalities. Histological examination following elliptical excision of the nodule with a 4 mm margin demonstrated a well- demarcated nodular infiltrate of lymphoid aggregates with reactive germinal centres, with numerous plasma cells and histiocytes present (Fig. 2). Fig. 1. Asymptomatic nodule on the temple. Fig. 2. Histology of excised nodule (H&E x40). What is your diagnosis? See next page for answer. QUIZ SECTION This is an open access article under the CC BY-NC license. www.medicaljournals.se/acta Journal Compilation © 2018 Acta Dermato-Venereologica. doi: 10.2340/00015555-2881 Acta Derm Venereol 2018; 98: 471–472