Y Bourezane1, H Bourezane2. 1. Cabinet de dermatologie, « Le Vigny », 11, rue Alfred-de-Vigny, 25000 Besançon, France. Electronic address: ybourezane@free.fr. 2. Cabinet de dermatologie, « Le Vigny », 11, rue Alfred-de-Vigny, 25000 Besançon, France.
Abstract
BACKGROUND: The purpose of this study is to describe two new trichoscopic signs, "Eastern pancake sign" and "comedo-like structures", not previously reported to our knowledge and seen in 5 patients with alopecic and aseptic nodules of scalp (AANS). PATIENTS AND METHODS: We report on 5 patients presenting AANS. Demographic and ethnic characteristics, disease duration, clinical description, treatment and evolution were noted. Trichoscopy was performed for all patients. RESULTS: In all cases of NAAS, trichoscopy revealed 2 signs: "Eastern pancake sign" resulting in heterogeneous dilated follicular orifices without trichoscopic signs of alopecia areata, and "comedo-like structures" resembling comedones. DISCUSSION: To our knowledge, there have been no previous reports in the literature of the 2 new trichoscopic signs of AANS described herein: "Eastern pancake sign" and "comedo-like structures". The trichoscopic feature of comedo-like structures suggests the potential role of follicular occlusion in this disease. We consider that follicular occlusion may be a triggering factor in AANS.
BACKGROUND: The purpose of this study is to describe two new trichoscopic signs, "Eastern pancake sign" and "comedo-like structures", not previously reported to our knowledge and seen in 5 patients with alopecic and aseptic nodules of scalp (AANS). PATIENTS AND METHODS: We report on 5 patients presenting AANS. Demographic and ethnic characteristics, disease duration, clinical description, treatment and evolution were noted. Trichoscopy was performed for all patients. RESULTS: In all cases of NAAS, trichoscopy revealed 2 signs: "Eastern pancake sign" resulting in heterogeneous dilated follicular orifices without trichoscopic signs of alopecia areata, and "comedo-like structures" resembling comedones. DISCUSSION: To our knowledge, there have been no previous reports in the literature of the 2 new trichoscopic signs of AANS described herein: "Eastern pancake sign" and "comedo-like structures". The trichoscopic feature of comedo-like structures suggests the potential role of follicular occlusion in this disease. We consider that follicular occlusion may be a triggering factor in AANS.
Keywords:
AANS; Alopecic and aseptic nodules of the scalp; Cellulite disséquante du cuir chevelu; Comedo-like structures; Crêpe orientale; Eastern pancake; Nodule alopécique et aseptique du scalp; Perifolliculitis abscedens et suffodiens; Pseudocomédon; Pseudokyste du cuir chevelu; Trichoscopie; Trichoscopy
Authors: Ngoc-Nhi Catharina Luu; Natalia Caballero Uribe; Maria Fernanda Reis Gavazzoni Dias; Hudson Dutra Rezende; Ralph Michel Trüeb Journal: Int J Trichology Date: 2022-07-16