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Fujishima C, Tahara J, Munemoto S, Hioki C, Sasaki H, Yoshida H, Matsuo H, Miyamoto Y, Ishii N, Kudo H. Cutaneous nontuberculous mycobacterial infections in Japan: Review of the Japanese literature. J Dermatol 2022; 49:1075-1084. [PMID: 35906770 DOI: 10.1111/1346-8138.16531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/11/2022] [Accepted: 07/17/2022] [Indexed: 11/29/2022]
Abstract
Nontuberculous mycobacteria cause a wide range of infections, including cutaneous infections, in both immunocompromised and immunocompetent patients. Although pulmonary nontuberculous mycobacterial infections have increased significantly in Japan in recent years, there is less evidence on clinical and microbiological characteristics of cutaneous nontuberculous mycobacterial infections in Japan. We reviewed 86 Japanese cases reported between July 2016 and November 2021 and analyzed them in conjunction with the eight patients from our institution who were diagnosed with cutaneous nontuberculous mycobacterial infections by culture between 2015 and 2021. In the aggregate series, the average patient age was 60 years, and the ratio of immunocompromised hosts was 53%, both of which were higher than those in previous reports from other countries. No female predominance was observed, unlike in pulmonary nontuberculous mycobacteria infections. Rapidly growing mycobacteria accounted for 58% of the cases (n = 54), whereas slowly growing mycobacteria for 43% (n = 40). Mycobacterium marinum (also known as Mycobacteroides marinum) (n = 20, 21%) was the most common cause, followed by Mycobacterium chelonae (n = 18, 19%), Mycobacterium abscessus (also known as Mycobacteroides abscessus) (n = 15, 16%), and Mycobacterium ulcerans (n = 11, 12%). While clinical appearance was variable, M ulcerans infections usually presented with ulcers, while nodules were common among infections caused by M chelonae and M marinum. Disseminated infections involving multiple organs were observed in 23 patients (24%). Thirty-two cases (30%) were preceded by exposure, including raising or handling fish, trauma, and invasive medical procedures. Most patients were treated with more than two antibiotics and responded to therapy.
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Affiliation(s)
- Chieko Fujishima
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Jumpei Tahara
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Sawa Munemoto
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Chika Hioki
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Hiroka Sasaki
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Haruka Yoshida
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Hiroo Matsuo
- Department of Infectious Diseases, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - Yuji Miyamoto
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Japan
| | - Norihisa Ishii
- National Sanatorium Tamazenshoen, Higashimurayama, Japan
| | - Hitoshi Kudo
- Department of Dermatology, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
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