An Uncommon Clinical Patterns of Proximal Subungual Onychomycosis Caused by Penicillium rubens

Clinical Cosmetic and Investigational Dermatology 2026 Open access

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Authors: Xian Dong, Liqiong Luo, Wei Zhang
DOI: 10.2147/ccid.s586209
Cited by: 0
References: 12

Abstract

Abstract: Proximal subungual onychomycosis (PSO) is a rare type of onychomycosis, which is commonly seen in patients with compromised immune systems. The pathogens include Trichophyton rubrum, Microsporum canis, Fusarium species, Aspergillus brasiliensis, Trichophyton erinacei, Aspergillus niger , and Aspergillus flavus . Onychomycosis caused by Penicillium is rarely reported. We report a rare clinical manifestation of proximal subungual onychomycosis caused by Penicillium rubens in an immunocompetent individual. Keywords: proximal subungual onychomycosis, penicillium rubens

Fields of Study & Subjects

Nail Diseases and Treatments Fungal Infections and Studies Actinomycetales infections and treatment

Publication details

Journal / source
Clinical Cosmetic and Investigational Dermatology
Volume
Volume 19
Pages
1–6
Publication date
1 March 2026
Language
EN