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ANTONIO CASCIO

Intestinal Lesions Due to Rhodococcus equi in a Patient With Advanced Retroviral Disease and Pulmonary Infection: A Case of Colonic Malakoplakia

  • Authors: Paola Di Carlo; Luca Pipitò; Elisabetta Orlando; Sandro Bellavia; Giovanni Boncori; Caterina Sarno; Vito Rodolico; Teresa Fasciana; Consolato Sergi ; Antonio Cascio.
  • Publication year: 2023
  • Type: Articolo in rivista
  • OA Link: http://hdl.handle.net/10447/639154

Abstract

In humans, Rhodococcus equi (R. equi) is a zoonotic infection usually involving immunocompromised subjects, only rarely affecting immunocompetent subjects. Herein, we describe an R. equi infection in a 50-year-old Russian man with acquired immune deficiency syndrome (AIDS) who presented with pulmonary cavitary lesions and clinical manifestation of colonic malakoplakia. A colonoscopy examination showed ulceration and mucosal erosion, and the histological findings confirmed the colonic malakoplakia. The patient recovered from pulmonary and gastrointestinal disease after four weeks of antibiotic treatment with intravenous ciprofloxacin and oral azithromycin and also underwent subsequent long-term oral antibiotic treatment to achieve clinical and immune restoration after antiretroviral therapy. Infectious disease pathology subspecialties should always consider R. equi chronic infection as a cause of malakoplakia in patients with AIDS. As only a few cases of colonic malakoplakia associated with R. equi are reported in the literature, these cases are important to describe, especially for clinical and treatment management.