A Knee-dle in a Haystack: Angiomatoid Fibrous Histiocytoma on the Knee of Child- What Dermatologists Should Know

Summary: Angiomatoid fibrous histiocytoma (AFH) is a rare mesenchymal neoplasm most often arising in the superficial extremities of children and young adults. AFH can mimic clinical, histologic, and radiologic presentation of several different tumors We describe the case of a 10-year-old male presenting with a painless, mobile subcutaneous nodule on his left anterior knee, mistaken for a synovial cyst, with pathology diagnostic for AFH.