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Updated: Dec 16, 2025

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
Published on: May 1, 2015
Pseudolymphomatous folliculitis
Belinda Roque Quintana1, Yeray Peñate, Társila Montenegro Dámaso
1Department of Dermatology, Complejo Hospitalario Universitario Insular-Materno Infantil, Las Palmas de Gran Canaria. Belinda.rq@hotmail.com.
Abstract:
Pseudolymphomatous folliculitis is a benign entity that is included within pseudolymphomas. Because of its rapid clinical growth and suspicious histology it has to be differentiated from malignant entities. Given its low frequency, the dermatoscopic characteristics of this entity are not well-characterized and have been described only once previously. We present a middle-aged woman with a facial erythematous plaque of 6 months' evolution, with dermatoscopy in which follicular plugs on an erythematous base were appreciated. The histology showed a dense lymphocytic infiltrate with folliculotropism and follicular alteration, with numerous peripheral histiocytes positive for S100 and CD1a. The lesion partially disappeared after the biopsy, and completely after topical treatment.
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