The frequency of os acromiale in 751 shoulder MRI of Saudi population.

Os acromiale (OA) is an uncommon pathology with a variable prevalence rate among different populations. The aim of this study was to report the frequency of OA utilizing shoulder MRI of patients with shoulder pathology. It was a retrospective study.

Angiomatoid Fibrous Histiocytoma: A Series of Three Cases.

Angiomatoid fibrous histiocytoma (AFH) is a rare, slow-growing soft tissue tumor with an intermediate biologic potential and uncertain line of differentiation, and minimal metastatic potential. AFH may mimic both the clinical, histological, and radiological findings of several tumors; therefore, it is frequently misdiagnosed.  Three cases of AFH were included in this study.

Total Knee Arthroplasty With Megaprosthesis for Idiopathic Charcot Knee.

Charcot knee is a rare condition with few reported cases in the literature. Although the clinical presentation is highly variable, Charcot knee classically presents with painful arthropathy in addition to instability and decreased range of motion. Herein, we describe the case of a 72-year-old man with idiopathic Charcot knee.