Sulejmani Pranvera, Wallis Luke, Alabkaa Anas, Ahmed Aadil
Dermatology, Rush University Medical Center, Chicago, USA.
Dermatology, University of Mississippi Medical Center, Jackson, USA.
Cureus. 2023 Jun 3;15(6):e39908. doi: 10.7759/cureus.39908. eCollection 2023 Jun.
is a non-tuberculous mycobacterium that presents as a nodular granulomatous disease. The bacillus can infect humans when broken skin is exposed to a contaminated aquatic environment. infections are usually isolated to the skin and soft tissues and can spread in a lymphatic distribution. A 26-year-old male cut his right ankle while spelunking in Tulum, Mexico. He presented to his primary care physician three months after he sustained the laceration with a nonhealing wound on the right lateral posterior ankle. Examination of the lesion demonstrated erythematous, violaceous, and hyperpigmented indurated plaques with satellite lesions noted at the right medial, posterior, and lateral ankle. The lesion characteristics raised initial suspicion for an invasive fungal infection. Biopsy of the lesion demonstrated epidermal ulceration covered by neutrophilic serum, marked underlying dermal acute inflammation, and granulation tissue. A mild perivascular, predominantly lymphocytic infiltrate was present in the deep dermis with no evidence of granuloma. Acid-fast bacilli culture plated onto chocolate agar confirmed the species
是一种非结核分枝杆菌，表现为结节性肉芽肿病。当破损皮肤暴露于受污染的水生环境时，该杆菌可感染人类。感染通常局限于皮肤和软组织，并可呈淋巴管分布扩散。一名26岁男性在墨西哥图卢姆洞穴探险时割伤了右脚踝。在他受伤三个月后，他因右踝后外侧伤口不愈合而就诊于他的初级保健医生处。对病变的检查显示，右踝内侧、后侧和外侧有红斑、紫罗兰色和色素沉着的硬结斑块，并伴有卫星病灶。病变特征最初引起了对侵袭性真菌感染的怀疑。病变活检显示表皮溃疡，表面覆盖中性粒细胞血清，真皮深层有明显的急性炎症和肉芽组织。真皮深层有轻度血管周围、以淋巴细胞为主的浸润，无肉芽肿证据。接种在巧克力琼脂上的抗酸杆菌培养证实了该菌种
