Fibrosarcoma of the s inonasal tract occurs across a wide age range, most commonly causing obstruction or epistaxis. The histologic appearance is that of a spindle cell lesion, with fascicles or bundles of neoplastic cells intersecting at various angles, sometimes with a herringbone pattern. Most sinonasal fibrosarcomas have a low-grade appearance, with moderate cellularity and a low mitotic rate . In accordance, the behaviour is more often characterised by repeated local recurrences, while distant metastases are rare. The differential diagnosis includes desmoid fibromatosis, leiomyosar-coma, nerve sheath tumours, spindle cell carcinoma and melanoma.
Was this article helpful?
Moles, warts, and other unsightly irregularities of the skin can be bothersome and even embarrassing. They can be removed naturally... Removing Warts and Moles Naturally! If you have moles, warts, and other skin irregularities that you cannot cover up affecting the way you look, you can have them removed. Doctors can be extremely expensive. Learn the natural ways you can remove these irregularities in the comfort of your own home.