biostudies-literatureUnknown101(49)Chen S<h4>Introduction</h4>Nontuberculous mycobacteria (NTM), are natural inhabitants of natural waters, engineered water systems, and soils. As a consequence of their ubiquitous distribution, humans are surrounded by these opportunistic pathogens.<h4>Patient concerns</h4>In this report, we describe a case of scubcutaneous Mycobacterium marinum infection associated with home tropical ornamental fish aquaria. A 43-years-old man reported progressively increasing nodules over his left forearm and hand for more than 7 months.<h4>Diagnosis</h4>Based on NTM culture, pathological examination, identification by gene sequencing and matrix assisted laser desorption ionization time of flight mass spectrometry, the diagnosis of scubcutaneous NTM infection was confirmed.<h4>Interventions</h4>The patient was treated with itraconazole for suspected sporotrichosis over 1 month.<h4>Outcomes</h4>The patient was treated with oral doxycycline hydrochloride capsules (200 mg/day) for 5 months, the nodules had resolved.<h4>Conclusion</h4>Home aquarium environments may serve as a possible source of mycobacteria infection in urban family.Medicinee32220https://www.ebi.ac.uk/biostudies/studies/S-EPMC9750702biostudies-literatureScubcutaneous Mycobacterium marinum infection misdiagnosed as sporotrichosis: A case report.PMC9750702Xia XLiu ZChen SfalseScubcutaneous Mycobacterium marinum infection misdiagnosed as sporotrichosis: A case report.<h4>Introduction</h4>Nontuberculous mycobacteria (NTM), are natural inhabitants of natural waters, engineered water systems, and soils. As a consequence of their ubiquitous distribution, humans are surrounded by these opportunistic pathogens.<h4>Patient concerns</h4>In this report, we describe a case of scubcutaneous Mycobacterium marinum infection associated with home tropical ornamental fish aquaria. A 43-years-old man reported progressively increasing nodules over his left forearm and hand for more than 7 months.<h4>Diagnosis</h4>Based on NTM culture, pathological examination, identification by gene sequencing and matrix assisted laser desorption ionization time of flight mass spectrometry, the diagnosis of scubcutaneous NTM infection was confirmed.<h4>Interventions</h4>The patient was treated with itraconazole for suspected sporotrichosis over 1 month.<h4>Outcomes</h4>The patient was treated with oral doxycycline hydrochloride capsules (200 mg/day) for 5 months, the nodules had resolved.<h4>Conclusion</h4>Home aquarium environments may serve as a possible source of mycobacteria infection in urban family.2022-01-01T00:00:00Z2022 Dec2025-04-19T20:50:44.599Z2025-04-19T20:50:44.599ZS-EPMC97507023662641810.1097/MD.0000000000032220