We report here a case of Mycobacterium genavense-disseminated infection in a human immunodeficiency virus-negative young patient under immunosuppressive treatment for autoimmune chronic hepatitis type I. The diagnosis was achieved thanks to the detection of Mycobacterium genavense-specific DNA in a hepatic biopsy embedded in paraffin for histologic examination 2 years before.
From the *Regional Reference Center for Mycobacteria, Careggi University Hospital, Florence and †Institute of Infectious and Tropical Diseases, University of Brescia, Brescia, Italy.
Correspondence to: Enrico Tortoli, Centro Regionale di Riferimento per la Diagnostica dei Micobatteri, Piastra dei Servizi, A.O.U. Careggi, largo Brambilla 3, 50134 Firenze, Italy. E-mail: email@example.com.
The authors have no funding or conflicts of interest to disclose.