Myopericytoma of the Knee: Report of a Rare Case and Literature Review.

Myopericytoma is a rare pericytic (perivascular) soft tissue tumor. Its occurrence in the knee is exceptionally uncommon, with only 14 cases reported to date. Although it is generally benign, malignant transformation has been reported. As it has only recently been recognized as a distinct pathological entity, it may be overlooked in the differential diagnosis of soft tissue tumors. This case report describes the medial knee, highlights its clinical and imaging findings. Awareness of this rare tumor in atypical locations is essential for timely diagnosis, appropriate treatment, and structured follow-up.