title: Pseudolymphomatous folliculitis on the nose.
abstract: Pseudolymphomatous folliculitis (PLF), which sometimes mimicks cutaneous lymphoma, is a rare manifestation of cutaneous pseudolymphoma and cutaneous lymphoid hyperplasia. We describe a 57-year-old Japanese woman with PLF on the nose that resembled cutaneous lymphoma clinically. The biopsy specimen revealed dense lymphocytes, especially CD1a+ cells, infiltrated around the hair follicles. Without any additional treatment, her nodule rapidly decreased before we performed a second biopsy for analysis of the clonal gene rearrangement. Though PLF typically behaves as benign lymphohyperplasia, differentiation from cutaneous lymphoma is necessary.
authors.affiliation: Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Aya
authors.initials: A
authors.lastname: Kakizaki
authors.forename: Taku
authors.initials: T
authors.lastname: Fujimura
authors.forename: Ikuko
authors.initials: I
authors.lastname: Numata
authors.forename: Akira
authors.initials: A
authors.lastname: Hashimoto
authors.forename: Setsuya
authors.initials: S
authors.lastname: Aiba