Background:The analysis of ultrasonographic pictures of malignant ovarian tumours and the comparison of ultrasonography with post-operative evaluation.
Material/Methods: 163 women with the diagnosis of ovarian tumour were subjected to ultrasonographic examination. In 38 patients, post-operative histopathological investigation revealed the presence of a malignant neoplastic process. We compared ultrasonographic pictures of the outline and thickness of the capsule, internal structure (cystoid, solid, partly cystoid partly solid), the presence of endo- and exophytic excrescences, the presence of ascites and enlarged periaortal lymph nodes or metastases to liver parenchyma with the status observed during operation.
Conclusions: 1. Ultrasonography is an important investigation in the early diagnostics of ovarian pathologies. 2. Ultrasonographic picture of ovarian tumour may indicate the presence of malignant process. 3. Malignant tumours coexist significantly more often with the following ultrasonographic features: thick capsule of varying thickness and blurred outline, partly cystoid partly solid structure of the tumour, non homogenous internal echogenicity, multilocular lesion.

Keywords: Ultrasonography, tumour