Secondary soft tissue tumors
Metastasize to bone (and soft tissue) how can the tumor epithelial (cancer), and connective (sarkoma) origin.
The secondary nature of the tumor You can install on cytologic preparations only if they are of epithelial origin. Cancer cells while retaining all the features, inherent elements of epithelial tumors. However, tumor cells belonging to one or another type of tissue can be determined is not always. In this regard, special attention should be paid to the location of the cell. The presence of rounded cell groups, glandular and papillary formations indicates that they belong to the malignant epithelial tumors.
Sometimes the nature of cytological patterns can determine the origin of the tumor.
The presence of atypical cells in a colloid testifies, that the place of primary tumor is thyroid; a large number of foam cells with large, eccentrically located, hyperchromatic nuclei typical for light- renal cell carcinoma. The presence of melanin in the tumor cells indicates metastasis melanoblastomы.
In other cases, to determine the origin of the tumor in addition to her studies cytological punctate necessary data Clinic.