✦ LIBER ✦

The cells of benign and malignant hemangiopericytomas in aspiration biopsy

✍ Scribed by Gia-Khanh Nguyen; Roy Neifer

Publisher: John Wiley and Sons
Year: 1985
Tongue: English
Weight: 459 KB
Volume: 1
Category: Article
ISSN: 8755-1039
DOI: 10.1002/dc.2840010412

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✦ Synopsis

Samples obtained by fine-needle biopsy of two benign and one malignant hemangiopericytoma revealed tumor cells with round, oval, or spindle-shaped nuclei, with variable and ill- defined jilmy cytoplasm. The nuclei had a finely granular chromatin pattern with or without inconspicuous nucleoli.

They were seen singly or in loose or dense cellular clusters.

Focal gland-like arrangement of tumor cells was noted in some cellular clusters. Benign endothelial cells were seen among tumor cells and were not cohesive to the latter. The benign and malignant nature of hemangiopericytoma cannot be predicted by examination of the cells present in the aspirates. Also, a specific diagnosis of hemangiopericytoma could not be made on cytologic basis alone as cells of hemangiopericytoma were

dificult to differentiate from those of other spindle-cell mesenchymal tumors. Diagn Cytopathol 1985;1:327-33 1.

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