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Open Access Maced J Med Sci. 2017 Jul 24;5(4):556-557. doi: 10.3889/oamjms.2017.133. eCollection 2017 Jul 25.

Lichen Simplex Chronicus as an Essential Part of the Dermatologic Masquerade.

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Dermatology Department, Polisano Clinic, 26Z Timisoara Blvd, Bucharest, Romania.
Dr Leventer Centre, 13-17 Sevastopol Street, Ste. 204, Bucharest 010991, Romania.
Private company - Pharmacology, Toxicology and Innovative Treatments, Rome, Italy.
Medical Institute of Ministry of Interior (MVR), Department of Dermatology and Dermatologic Surgery, General Skobelev 79, 1606 Sofia, Bulgaria.
Department of Dermatology, University of Rome "G. Marconi", Rome, Italy; Department of Biotechnology, Delft University of Technology, 2628 BC, Delft, The Netherlands.
Department of Dermatology and Allergology, Academic Teaching Hospital Dresden-Friedrichstadt, Friedrichstrasse 41, 01067, Dresden, Germany.
Department of Nuclear, Subnuclear and Radiation Physics, University of Rome "G. Marconi", Rome, Italy.
Institute for Bioethics & Health Policy; Department of Dermatology & Cutaneous Surgery; Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine - Miami, FL, USA.
Abdominal and Thoracic Surgery, Department of Special Surgery, Medical University of Plovdiv, bul. "Peshtersko shose" Nr 66, 4000 Plovdiv, Bulgaria.
Department of Dermatology, Venereology and Dermatologic Surgery, Medical Institute of Ministry of Interior, and Onkoderma Polyclinic for Dermatology and Dermatologic Surgery, Sofia, Bulgaria.


A 48 years old female patient had been suffering from the lesions presented for four years. They have started as small, pruritic patches which had been mechanically irritated and grew up in time. The patient had no associated comorbidities or allergies, and she was not under any medication. On physical examination, she presented one erythematous, exudative plaque, with dimensions of 2.5/4 cm, located on the proximal phalanx and interphalangeal articulation of the left thumb. All histopathological features were consistent with the diagnosis of lichen simplex chronicus. Some lesions of lichen simplex chronicus exhibit signs of pseudocarcinomatous, infundibular and sometimes eccrine ductal proliferation of keratinocytes. Although the pseudoinfiltrative aspect of the epithelial proliferation and its pronounced degree might mimic a well-differentiated lesion of squamous cell carcinoma, a lack of cellular atypia and atypical mitotic figures are features that do not support this diagnosis. On the other hand, long lasting lesions of lichen simplex chronicus may lead to alterations in the processes of keratinocyte proliferation and differentiation and eventually give rise to malignant transformation. The best treatment management is a psychodermatological approach, a combination of skin care with psychotherapy, in order to prevent relapses.


carcinoma; histology; lichen simplex; prurigo nodularis; surgery

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