Figure 4From: Intra-articular angioleiomyoma of the knee with an atypical finding on gadolinium-enhanced magnetic resonance imaging: a case report Microscopic specimen demonstrating an angioleiomyoma. Microscopic findings reveal that the tumor comprises numerous blood vessels of various sizes and abundant fascicles of smooth muscle bundles surrounding the vessels (hematoxylin and eosin; ×20, ×40).Back to article page