From January 1981 to December 1992, of 6250 cases of salmonellosis treated at the Christian Medical College and Hospital, Vellore, India, 100 patients with focal pyogenic infection caused by salmonellae required surgical intervention in addition to medical therapy. Thirty-one had involvement of the hepatobiliary system, and 10 more had other intra-abdominal infections. Involvement of bone and joint as well as soft tissue constituted 15% each. The site of infection in patients with soft tissue abscesses included skin (7), parotid (2), thyroid (2), breast (1) inguinal node (1), branchial sinus (1) and injection site (1). Three patients had arterial infections. Noteworthy among the cases of genital infections was one case of salmonella infection in a pre-existing hydrocele, and one case of epididymo-orchitis with a loculated salmonella infection. Salmonella infection in a pre-existing ovarian cyst was seen in a patient with endometriosis. The salmonella serotypes most frequently encountered were S. typhi (36) and S. typhimurium (36), followed by S. paratyphi A (15). The importance of recognition of these protean manifestations of salmonellosis in an endemic setting is discussed. The microbiological evaluation of properly obtained specimens is mandatory in such unusual pyogenic infections.
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