A case of fistulizated pelvic malacoplakia: cytohistologic, immunohistochemical and electron-microscopic study.

A case of malacoplakia with a tumor-like involvement of the pelvis is presented. It was characterized by a urine-trickling fistula from the bladder to the gluteal surface and by acute urinary retention. Examinations both cytologic of urine collected from urethra and from fistula, and histological of tissues from bladder and rectum were performed.

The value of endometrial cytology by scraping in 1,798 cases: screening in asymptomatic women and diagnosis in symptomatic ones.

A study of 1,798 endometrial cytological samples, obtained with an "endocyte" (a disposable scraping device) and controlled in histology is presented. The method was tested for its usefulness in screening of precancerous lesions and preclinical cancer in 1,248 asymptomatic women and in the diagnosis of endometrial pathology in 550 symptomatic ones. The classification of hyperplasia into benign simplex and complex hyperplasia and atypical hyperplasia was followed; atypical hyperplasia, considered real intraepithelial neoplasia, was included in the positive cases.

Malignant lymphoma, Burkitt's type: histologic report of two cases in Italy.

Two cases of undifferentiated Burkitt's type malignant lymphoma with prevalent ovarian localization and observed in Italy are described histologically. Some brief considerations about the extra African diffusion of this lymphoma are pointed out.