collagenous fibroma

(redirected from desmoplastic fibroblastoma)

collagenous fibroma

A rare benign, well-circumscribed tumour, usually measuring 1–3 cm, which is more common in males in their 50s to 70s. It is predominantly peripheral and favours the arm, shoulder, neck and other sites; if adjacent to bone, it causes erosion.

Clinical findings
Patients present with a painless subcutaneous mass; one-fourth of cases involve skeletal muscle.

Management
Local excision.
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3;p13) t(3;17)(q21;p13) t(9;17)(q22;p11-12) t(17;17)(p13;q12) Chondroid lipoma t(11;16)(q13;p12-13) Desmoid-type fibromatosis +8, +20 5q21-22 loss (a) Desmoplastic fibroblastoma t(2;11)(q31;q12) t(11;17)(q12;p11.
Interestingly, other neoplasms with fibroblastic/myofibroblastic differentiation evaluated by these authors (DFSP, LGFS, desmoplastic fibroblastoma, and fibromatosis) did not express this antigen.