A Case of Lymphomatoid Papulosis, Type F
- Author:
Dae-Lyong HA
1
;
Jin Seon BANG
;
Ji Yun JEONG
;
Man-Hoon HAN
;
Seok-Jong LEE
Author Information
1. Departments of Dermatology Kyungpook National University School of Medicine, Daegu, Korea
- Publication Type:Case Report
- From:Korean Journal of Dermatology
2023;61(2):137-139
- CountryRepublic of Korea
- Language:English
-
Abstract:
Lymphomatoid papulosis (LyP) is a relatively uncommon CD30＋ lymphoproliferative disorder with a good prognosis. However, it is important to be cautious because 4%∼25% of the cases are accompanied by secondary lymphoma. LyP is divided into subtypes of infiltrate-descriptive categories based on the histological findings. Classically, LyP shows a patchy, wedge-shaped, dermal infiltrate of small to intermediate-sized lymphocytes, with atypical lymphoid cells and a variable mixture of neutrophils, histiocytes, and eosinophils. Follicular LyP (type F LyP), which was recently described and is not yet included as an official subtype in the World Health Organization classification, shares these characteristics, although its infiltrate is folliculocentric. Variable folliculotropism, follicular dilation, rupture, and mucinosis can occur. This entity is commonly misdiagnosed and is possibly underreported because its histopathologic features can masquerade as more common follicular-based entities. Herein, we report the case of follicular type LyP, which has not been reported in in Korean dermatology literature.
