Strongyloides stercoralis in a bronchial washing specimen processed as conventional and Thin-Prep smears: report of a case and a review of the literature.

Strongyloidiasis is an opportunistic infection which may result in a fatal hyperinfection syndrome in immunocompromised patients. We report the case of a pulmonary infection with Strongyloides stercoralis in a 61-year-old male with a history of a long-term administration of corticosteroids. Cytologic examination of a bronchial washing specimen, processed both as conventional and as Thin-Prep smears, revealed an abundance of the typical larvae of Strongyloides stercoralis, amidst a cellular population comprising several acute inflammatory cells as well as bronchial epithelial cells with features of basal cell hyperplasia or regenerative atypia.

Primary effusion lymphoma. A case report.

Background: Primary effusion lymphoma (PEL) is a rare type of lymphoma that presents as an effusion, seldom with evidence of a solid neoplasm elsewhere; thus, cytology is the basic diagnostic method. It usually occurs in HIV-positive males with a history of Kaposi's sarcoma (KS), and DNA sequences of human herpesvirus 8 (HHV-8) are detected by molecular analysis. The distinct morphologic, immunophenotypic, molecular and clinical characteristics render this neoplasm a new pathologic entity.

Comparative evaluation of the BTAstat test, NMP22, and voided urine cytology in the detection of primary and recurrent bladder tumors.

Objectives: This prospective study was undertaken to evaluate the diagnostic efficacy of the BTAstat test and nuclear matrix protein (NMP22) compared with voided urine cytology (VUC) in the detection of primary and recurrent bladder cancer.

Methods: A total of 147 patients provided a single voided urine sample for the BTAstat test, NMP22, and cytology prior to cystoscopy. Eighty-five of them had no bladder cancer history, whereas the remaining 62 were monitored for superficial bladder cancer.

A comparative study of three variations of the learning vector quantizer in the discrimination of benign from malignant gastric cells.

A prospective study was undertaken to investigate the potential value of morphometry and artificial neural networks (ANN) for the discrimination of benign and malignant gastric lesions. Two thousand five hundred cells from 23 cases of cancer, 19 cases of gastritis and 58 cases of ulcer were selected as a training set, and an additional 8524 cells from an equal number of cases of cancer, gastritis and ulcer were used as a test set. Images of routine processed gastric smears stained by the Papanicolaou technique were processed by a custom image analysis system.

Evaluation of cytological morphologic criteria and AgNOR expression in male breast lesions.

Fine needle aspiration (FNA) breast smears from 81 male patients have been examined in our laboratory between 1988 and 1994. The cytological criteria for diagnosing male breast lesions and the expression of nuclear organizer regions were evaluated. Of the 81 cases examined cytologically, 50 cases were proven cytologically and histologically to be inactive gynaecomastia, two cases showed florid gynaecomastia and there were 10 adenocarcinomas; in the 17 cases in which no cytological evidence of gynaecomastia or malignancy was found, the histological diagnosis was gynaecomastia in 13 and there was one case of mastopathy; in two cases suspicious of malignancy on cytology the histological examination proved to be florid gynaecomastia in one case and the other showed an adenocarcinoma.