Primary cutaneous nocardiosis caused by Nocardia otitidiscaviarum: two cases and a review of the literature.

We report two cases of primary cutaneous nocardiosis due to Nocardia otitidiscaviarum. The first case is a mycetoma, the second, a cutaneous abcess: these two cases were imported into France (Vietnam, Zimbabwe). The literature on primary cutaneous nocardiosis due to N.

[Clinical and bacteriological aspects of nocardiasis. 9 cases].

Objectives: Nocardial infection is usually localized in the immunocompetent patient and occurs as an opportunistic disseminated infection in about half of the cases in immunoincompetents patients.

Methods: We report a retrospective assessment of 9 cases of nocardial infection diagnosed between January 1991 and February 1994.

Results: Six of the patients were immunodepressed: 3 had a disseminated infection with pulmonary (n = 2), brain (n = 2), skin (n = 3) and/or ocular (n = 1) localizations.

[Cholecystitis and biliary infection].

Cytobacteriologic study of 150 gallbladder fluid samples obtained before cholecystectomy found no correlations between clinical manifestations, gross and histologic features of the gallbladder, and underlying biliary infection. The potential parts played in these discrepancies by bile, time to surgery, and use of antimicrobial agents are discussed.

Actinomycosis of the gallbladder due to Actinomyces naeslundii.

We report two cases of actinomycosis of the gallbladder due to Actinomyces naeslundii. Both patients presented with acute cholecystitis. After cholecystectomy with the removal of gallstones each patient made an uneventful recovery.

[Campylobacter pyloridis: bacteriological study and sensitivity to antibiotics].

Twelve strains of Campylobacter pyloridis isolated in the antrum and/or fundus in 8 patients were analyzed for antibiotype. The results obtained, compared with those in the literature, enabled assessment of the culture media which are the best adapted for isolation, the main criteria for identification (urease, alkaline phosphatase, nitratereductase, growth temperature), their sensitivities (beta-lactamines, tetracyclines, macrolides) or their resistance to antibiotics (colistin, vancomycin, co-trimoxazole, nalidixic acid).