Table 3.

Summary Table of Angiomatoid Fibrous Histiocytoma

Etiology	Uncertain differentiation
Incidence	<< 1%, ~ 1/100,000; 0.3% of soft tissue neoplasms
Gender Ratio	1:3 F:M
Age Predilection	≤ 30
Risk Factors	None known
Treatment	Surgical excision
Prognosis	23% recurrence, 8.7 % metastasis; generally favorable but classified as intermediate biologic behavior
Findings on imaging	Soft tissue mass in extremity, heterogeneous density, echogenicity, T1,T2 signal, with hemorrhage, myxoid, necrosis, +/− cystic spaces, fluid levels