Low-Grade Fibromyxoid Sarcoma: A Report of Two Metastasizing Neoplasms Having a Deceptively Benign Appearance

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Abstract
Two deceptively benign-appearing, unclassifiable but very similar fibromyxoid sarcomas characterized histologically by bland, innocuous-appearing fibroblastic cells and a swirling, whorled growth pattern are presented. The tumors both occurred in women in their late twenties and were located in the soft tissues of the scapular area and the axillary–chest wall area, respectively. Lung metastases developed in both cases; one patient died 94 months after excision of the primary neoplasm, whereas the other was alive at 82 months. The designation “low-grade fibromyxoid sarcoma” is suggested for these tumors.