[Fundamentals of fixation of cytological preparations (author's transl)].

Short description of the technique of fixing material--obtained by percutaneous fine needle biopsy--for cytology. A well experienced cytopathologist is mandatory for interpretation of the specimen.

[A method for percutaneous thin-needle biopsy of the pancreas aimed by ultrasound (author's transl)].

Percutaneous biopsy of the pancreas with a fine needle aimed by ultrasound was carried out on 26 patients with sonographically proven carcinoma of the pancreas. The accuracy of this method was correlated with other radiological techniques. Needle biopsy of the pancreas proved an informative and economical procedure, since the sonographic demonstration of a pancreatic mass otherwise requires additional radiological and endoscopic investigations.

Malignant non-Hodgkin's lymphoma (NHL) in childhood. Retrospective analysis of 34 cases.

Of 47 children with an initial diagnosis of lymphosarcoma, reticulosarcoma or Non-Hodgkin's lymphoma (NHL), 13 had to be excluded at the histologic reevaluation: in 10 an undifferentiated sarcoma, in 2 Hodgkin lymphoma was found; in one patient no definite classification of the tumor was possible. Of the remaining 34 patients there were 26 boys and 8 girls. One patient had a nodular, 33 a diffuse NHL.

Diagnostic value of biopsy, guided lavage, and brush cytology in esophagogastroscopy.

In a prospective study 96 patients with esophageal and gastric lesions were investigated by multiple endoscopic biopsy, brush cytology, and guided lavage cytology. The aim was to evaluate the diagnostic accuracy of each of these methods in a prospective study. 50 malignant and 46 benign lesions were found.

Monoclonal plasma cell population in the uterus.

The case of a 28-year-old female patient is presented. Heavy infiltration with plasma cells of uterine tissue removed by surgical currettage following an aborted pregnancy was detected by cytological and histological examination. Subsequent immunohistochemical studies revealed the monoclonal nature of these cells: intracellular immunoglobulin contained gamma- and lambda-chains exclusively.

Evaluation of specific value of endoscopic biopsies and brush cytology for malignancies of the oesophagus and stomach.

The value of multiple biopsies and brush cytology at oesophago-gastroscopy was assessed in relation to macroscopy and localization on 100 verified tumours in a prospective study. The cumulative accuracy achieved was 96%. This was significantly better (P less than 0-01) than that of biopsy (83%) and of cytology (85%).

[Cytodiagnosis of the uterine portio vaginalis according to WHO nomenclature. II. Clinical implications of descriptive cytological evaluations].

The evaluation of smears of the uterine cervix on the basis of descriptive terms requires the practitioner to be acquainted with the nomenclature used by cytologists. A theoretical scheme is provided which correlates the diagnostic features encountered with their respective clinical implications.

[Cytodiagnosis of the uterine portio vaginalis according to WHO nomenclature. I. Correlative revision of cytological and histological diagnoses as quality control of selected materials. Frequency and possible reasons for the lack of correlation of cytological and histological diagnoses].

Smears from the uterine cervix have been evaluated for neoplastic changes on the basis of descriptive terms. The material was obtained by a single gynecologist using a standardized sampling technique and the results were compared with the respective histological diagnoses. Material which was found to be unsuitable for technical reasons was excluded from this study.