J. P. Benevenga

Cutaneous zygomycosis caused by Absidia corymbifera in a leukemic patient

A case of cutaneous zygomycosis caused byAbsidia coryabifera in a leukemic patient submitted to chemotherapy is reported. The lesion was located on the little finger of the right hand and probably resulted from a latent osteomyelitis. It progressed to form extensive necrotic area. No systemic infection was detected and the lesion did not appear to be associated with any trauma.

Subcutaneous Pseudallescheriasis in a renal transplant recipient

This paper reports a case of a single subcutaneous nodule caused byPseudallescheria boydii in a renal transplant recipient, possibly of nontraumatic origin. The patient was treated surgically and with itraconazole.

Curvularia lunata peritonitis complicating peritoneal dialysis

A case of peritonitis due toCurvularia lunata during continuous ambulatory peritoneal dialysis is reported. Diagnosis was established by culture of dialysis effluent and peritoneal exudate, and was also confirmed through histological examination.

Dermatofitoses humanas no interior do Rio Grande do Sul no período 1988-1992

O espectro dos dermatofitos na regiao central do Rio Grande do Sul demonstrou importante variacao na frequencia das especies no periodo 1988-1992. As especies antropofilicas Trichophyton rubrum, T. mentagrophytes var. interdigitale e Epidermophyton floccosum diminuiram em frequencia, enquanto as especies zoofilicas Microsporum canis e T. mentagrophytes var. mentagrophytes apresentaram sensivel aumento. Sao comentadas as alteracoes na relacao parasita/hospedeiro em funcao das alteracoes na morfologia dos agentes e a dificuldade do isolamento destes agentes em cultivo.The relative frequency of the dermatophytes in the central region of Rio Grande do Sul, Brazil, have changed during a survey carried out from 1988-1992. The frequency of the antropophilic species T. rubrum, T. mentagrophytes var. interdigitale and E. floccosum have decreased in comparison with the zoophilic species M. canis and T. mentagrophytes var. mentagrophytes. The relationship host/parasite and the low rate growth of dermatophytes in culture are discussed.The relative frequency of the dermatophytes in the central region of Rio Grande do Sul, Brazil, have changed during a survey carried out from 1988-1992. The frequency of the antropophilic species T. rubrum, T. mentagrophytes var. interdigitale and E.floccosum have decreased in comparison with the zoophilic species M. canis and T. mentagrophytes var. mentagrophytes. The relationship host/parasite and the low rate growth of dermatophytes in culture are discussed.

Histoplasma capsulatum peritonitis associated with continuous ambulatory peritoneal dialysis

This paper reports a case of infection byHistoplasma capsulatum apparently restricted to the peritoneum in a woman submitted to continuous ambulatory peritoneal dialysis. Diagnosis was established by culture of dialysis fluid and peritoneal nodule and by histopathologic examination.

Trichosporon beigelii peritonitis associated with continuous ambulatory peritoneal dialysis

This paper reports a case of peritonitis caused by Trichosporon beigelii in a woman submitted to continuous ambulatory peritoneal dialysis. Diagnosis was established by direct examination and culture of dialysis effluent.

The second case of peritonitis due to Histoplasma capsulatum during continuous ambulatory peritoneal dialysis in Brazil

This paper reports a case of infection due to Histoplasma capsulatum apparently restricted to the peritoneum in a woman submitted to continuous ambulatory peritoneal dialysis (CAPD). Diagnosis was established by direct examination and culture of dialysis effluent. Although the state of Rio Grande do Sul, the southermost in Brazil, is not considered a region of high endemicity for histoplasmosis, this is the second case of infection occurring in a patient during CAPD.

Nocardia asteroides peritonitis during continuous ambulatory peritoneal dialysis

This paper reports a case of peritonitis by Nocardia asteroides during continuous ambulatory peritoneal dialysis in a man who had systemic lupus erythematous and chronic renal failure. Diagnosis was established by microscopic examination (Gram and Kinyoun) and culture of centrifuged dialysis fluid and the patient was treated with Trimethoprim-Sulfamethoxazole by intraperitoneal route.

Cutaneous Nocardia asteroides infection of nontraumatic origin

This paper reports a case of cutaneous infection of nontraumatic origin caused by Nocardia asteroides in a hospitalized patient with chronic obstructive pulmonary disease. Diagnosis was established by direct and histological examination, cultures from exudate and biopsy specimen. We discuss the classification of clinical forms of Nocardia infections affecting the skin.

Nodular infection of the hair caused byMalassezia furfur

This paper reports the observation of a nodular infection of the hair caused byMalassezia furfur in a 7-year-old girl.