Korean J Dermatol.  2014 Nov;52(11):802-805.

A Case of Pseudolymphoma on the Lip

Affiliations
  • 1Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea. hjpark@catholic.ac.kr

Abstract

Cutaneous pseudolymphoma is a benign reactive lymphoproliferative process that clinically and histologically simulates cutaneous lymphomas. Cutaneous pseudolymphoma usually develops as solitary or multiple erythematous papules or nodules. The face, scalp, and neck are the most common sites for pseudolymphomas. Several cases of pseudolymphomas on the lip have been reported previously in the literature but are rare. A 52-year-old woman presented with an asymptomatic, solitary, indurated, erythematous swelling of the mucosa of the upper lip, which had been present for several years. A punch biopsy was performed, and histologically, the lesion was diagnosed as cutaneous pseudolymphoma. Despite treatment with triamcinolone acetonide intralesional injection and systemic steroids, the lesion waxed and waned for 1 year. After stopping treatments for several months, the lesion spontaneously resolved. Herein, we report a rare case of pseudolymphoma on the lip without causative history.

Keyword

Cutaneous pseudolymphoma; Lip
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