Abstract
We analysed cytomorphological characteristics of three fine needle aspiration biopsy (FNAB) samples of acral myxoinflammatory fibroblastic sarcoma (AMIFS) as well as the features of a number of other benign and malignant myxoid lesions. The analysis showed that FNAB samples from two cases of AMIFS had similar cytomorphology, containing all the characteristic features described in surgical biopsies: myxoid material, spindle cells with bipolar cytoplasmic extensions, epithelioid cells with globules of extra-cellular material, ganglion-like and lipoblast-like giant cells. Only the inflammatory component was scarce. The third sample did not contain features typical of AMIFS. Samples from other myxoid tumours resembled AMIFS to some extent, however, none of them contained all three tumour components characteristic of AMIFS. Cytomorphology of AMIFS may be characteristic enough to enable a definitive diagnosis from FNAB, provided all the distinctive features are sampled.
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