414 Unusual Facial “ Acne ”: A Quiz
QUIZ SECTION
ActaDV ActaDV Advances in dermatology and venereology Acta Dermato-Venereologica
Aurélie DU-THANH 1 , Eric FROUIN 2 , Luc DURAND 2 , Valérie COSTES 2 and Olivier DEREURE 1
1
Department of Dermatology , and 2 Laboratory of Pathology , University of Montpellier , Hôpital Saint-Eloi , 80 avenue Augustin Fliche , FR-34295 Montpellier Cedex 5 , France . E-mail : a-du _ thanh @ chu-montpellier . fr
A 31-year-old woman was investigated for multiple , slightly erythematous or flesh-coloured , firm , asymptomatic papules , a few mm in diameter , located exclusively on the chin and the lower part of both cheeks ( Fig . 1a ). These elements had gradually emerged over the 2 previous years and were initially considered and treated unsuccessfully as retentional acne . Physical examination was otherwise unremarkable and the general status of the patient was excellent . Histo- logical examination of a papule displayed a multi-nodular lymphocytic infiltrate of moderate density involving the upper and medium dermis that was well-limited laterally ( Fig . 1b ). Standard laboratory investigations and routine serologies , including serological diagnosis of Borrelia , were normal or negative . Computed tomography ( CT ) scan of the chest , abdomen and pelvis was unremarkable .
What is your diagnosis ? See next page for answer .
Fig . 1 . Clinical and histological features . ( a ) Multiple , small-sized papules of the lower part of the face with chronic evolution . ( b ) multi-nodular dermal infiltrate of moderate density involving the upper and medium dermis with reactive germinal centre-like structures ( Haematoxylin-eosin × 5 ).
doi : 10.2340 / 00015555-2538 Acta Derm Venereol 2017 ; 97 : 414 – 415
This is an open access article under the CC BY-NC license . www . medicaljournals . se / acta Journal Compilation © 2017 Acta Dermato-Venereologica .