Atypical Mycobacterial Infection of the Rectum

D. C. Damin; M. B. Caetano; M. A. Rosito; C. Tarta; P. Contu; P. Mancopes; L. Meurer

doi:10.1055/s-2005-870300

Endoscopy, Table of Contents

Endoscopy 2005; 37(8): 788
DOI: 10.1055/s-2005-870300

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Atypical Mycobacterial Infection of the Rectum

D. C. Damin¹ , M. B. Caetano¹ , M. A. Rosito¹ , C. Tarta¹ , P. Contu¹ , P. Mancopes¹ , L. Meurer²

¹Department of Colorectal Surgery, Hospital de Clinicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
²Department of Pathology, Hospital de Clinicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil

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Figure 1 A 31-year-old HIV-positive man presented with diarrhea and anal bleeding. Colonoscopy revealed multiple patchy erythematous lesions located in the rectum, along with linear erosions.

Figure 2 Histopathological analysis of rectal biopsies demonstrated the presence of innumerable free and intracellular acid-fast bacilli (× 32). Mycobacterium other than tuberculosis was cultured from the rectal specimens, confirming the diagnosis of atypical mycobacterial rectitis. The patient was treated with a combination of antimycobacterial drugs, with complete resolution of his clinical and endoscopic manifestations.

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Figures

Figure 1 A 31-year-old HIV-positive man presented with diarrhea and anal bleeding. Colonoscopy revealed multiple patchy erythematous lesions located in the rectum, along with linear erosions.

Figure 2 Histopathological analysis of rectal biopsies demonstrated the presence of innumerable free and intracellular acid-fast bacilli (× 32). Mycobacterium other than tuberculosis was cultured from the rectal specimens, confirming the diagnosis of atypical mycobacterial rectitis. The patient was treated with a combination of antimycobacterial drugs, with complete resolution of his clinical and endoscopic manifestations.