We report on a case of malacoplakia involving testis and epididymis in 63-year-old man. The lesion had a characteristic yellow nodular gross appearance and was composed of histiocytes, neutrophils and plasma cells. Calcospherules (Michaelis-Gutmann bodies) are prominent. The findings are compatible with the generally accepted concept that malacoplakia represents a peculiar inflammatory process of unknown etiology. The relationship between testicular malacoplakia and granulomatous orchitis is discussed.
Download full-text PDF |
Source |
---|
Pathologe
November 1999
Institut für Pathologie, Medizinische Universität Lübeck.
We report on a 62-year-old female patient with melena in which polypoid lesions of the cecum were discovered endoscopically. Histological examination of mucosal biopsies revealed an inflammatory process with lots of histiocytes and so-called Michaelis-Gutmann bodies, leading to the diagnosis of a malakoplakia of the colon. No other organs were found affected.
View Article and Find Full Text PDFPathologica
June 1991
Istituto di anatomia patologica, Università di Modena.
The histological and ultrastructural features of a case of malakoplakia affecting the testis and the epididymis of a 53-year-old man are described. Light microscopy shows a granulomatous inflammatory process, characterized by the accumulation of large mononuclear cells with abundant granular cytoplasm and PAS-positive calcific intracytoplasmic inclusions (so-called Michaelis-Gutman bodies). On E.
View Article and Find Full Text PDFWe report on a case of malacoplakia involving testis and epididymis in 63-year-old man. The lesion had a characteristic yellow nodular gross appearance and was composed of histiocytes, neutrophils and plasma cells. Calcospherules (Michaelis-Gutmann bodies) are prominent.
View Article and Find Full Text PDFMalakoplakia which was found in the kidney if a man aged 55 years is described. This rare granulomatous lesion was extirpated together with a renal cyst. So-called Hansemann-cells with inclusion bodies and ring structures were found by light and electronmicroscopic examinations.
View Article and Find Full Text PDFMalakoplakia was induced experimentally by introducing large amounts of crude endotoxin-antigen comples of 075 Escherichia coli (E. coli 12797 CDC 0 group 75) into the kidneys and testes of rats. First leukocytes, then granulation tissue composed mainly of characteristic macrophages, the so-called Hansemann cells, appeared around the endotoxin-antigen mass.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!