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Contribution of fine needle aspiration biopsy under control with ultrasound for a more precise determination of the etiology of ascites


Authors: A. Martínek 1;  J. Dvořáčková 2;  P. Klvaňa 1;  J. Horáček 3;  V. Hrabovský 1
Authors‘ workplace: Interní klinika Fakultní nemocnice s poliklinikou, Ostrava přednosta doc. MUDr. A. Martínek, CSc. 1;  CGB Laboratoř, Ostrava, vedoucí lékař MUDr. J. Dvořáčková 2;  Ústav patologické anatomie, Zdravotně-sociální fakulta, Ostravská univerzita, přednosta doc. MUDr. J. Horáček, CSc. 3
Published in: Prakt. Lék. 2005; 85(8): 451-453
Category: Diagnostis

Overview

The objective of the study is the assessment of the contribution of cytological investigation of ascites of obscure etiology to differentiate between benign and malignant etiology, and in the case of malignant ascites its contribution to a more detailed specification of its malignancy. Over the period 1986 through 2003 the authors performed, in 151 persons with a small amount of ascites, samplings of ascites by the method of targeted aspiration biopsy with a fine needle under control of ultrasound, for consequent cytological investigations and evaluation. Of that number, in 88 subjects in question was ascites in benign disease, in 63 subjects it was ascites in malignant disease. In basic cytological differentiation of malignancy there were 2 cases of false-positive findings and 7 cases were falsely negative. The sensitivity, specificity, and diagnostic precision in the basic differentiation of etiology of the ascites were high, namely 89%, 98%, and 94%, respectively. A lesser contribution of the method was in the specification of the type and primary localization of the malignant tumor connected with the ascites. A correct cytological conclusion was in 29 of 63 subjects, i.e. in 46% of cases (46% sensitivity). In conclusion, the authors state that cytological investigation in ascites of obscure etiology is one of the fundamental diagnostic procedures for differentiating between its benign and malignant etiology. To a lesser degree it can contribute even in closer specification of the type of malignant process and its primary localization.

Key words:
ascites – fine-needle aspiration biopsy (FNAB) – ultrasound.


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