Fig. 4From: Humeral metastasis as the only recurrence of a 5-year resected gastrointestinal stromal tumor: a case reportHistologic features: Hematoxylin-eosin stain (HE stain), ×2 (A) and ×10 magnification (B). Post-therapy regression presented as large fibrous cicatricial sheets containing focal areas of monomorphic spindle cells poorly atypical. Reduction and thickness of the cortical bone with reactional ossification were associatedBack to article page