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Published on: March 25, 2022
Liver Mass Caused by Mycobacterium fortuitum: A Rare Case Diagnosed by EUS-FNA
Yue-Sai Jao1,2,3,4, Lemuel Martinez1,2,3,4, Victor J Carlo1,2,3,4
1Fellowship Program, University of Puerto Rico School of Medicine Gastroenterology, San Juan, Puerto Rico.
Abstract:
Mycobacterium fortuitum is associated with skin and soft-tissue infections, yet isolated liver involvement is rare. A 67-year-old asymptomatic man was referred for endoscopic ultrasound (EUS) to evaluate a gastric lesion and an incidental liver mass. EUS revealed a heterogeneous liver mass that was sampled. Pathology revealed necrotic granulomatous inflammation and positive acid-fast bacilli stain with M. fortuitum deoxyribonucleic acid. Levofloxacin plus trimethoprim and sulfamethoxazole for 3 months were used for complete resolution of liver lesion. Isolated nontuberculous liver involvement is uncommon. We report the first case of a liver mass caused by M. fortuitum diagnosed by EUS-fine needle aspiration.
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