In five of six cases, no recurrences have been diagnosed (median follow-up period: 29 months). One case presented limited persistence of disease in the retro-cricoid and arytenoids at 20-month follow-up control.

Intranodal myofibroblastoma (IM) is a recently delineated clinicopathologic entity represented by a myofibroblastic proliferation of the lymph node. It usually occurs at the groin and presents clinically as a single enlarged lymph node. Its clinical behavior is entirely benign and local excision is curative. The authors herein report a case of IM diagnosed by aspiration biopsy cytology (ABC). The main diagnostic clues to the cytologic diagnosis of this entity as well as the differential diagnosis are presented.

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We report two new cases of breast fibromatosis studied by needle aspiration cytology observed in a 32-year-old man and a 49-year-old woman. The lesions manifested as palpable, painless, and firm masses of the para-areolar breast soft tissues. Preoperative fine needle cytology revealed scant cellularity, featuring oval and spindle cells with bland nuclei and occasional larger polygonal cells with high nuclear:cytoplasmic ratio. Histologically, interwoven fascicles of spindle cells with bland nuclei, infiltrating the adjacent breast fat, were recognized. Based on available reports in the literature, we concluded that needle aspiration cytology, although not entirely specific, may be a source of important information in patients with breast fibromatosis. In particular, it confidently allows the exclusion of breast cancer and other more common diseases and is useful in planning a surgical approach to the lesion.