08 February 2021
: Case report 
Rib Osteoblastoma as a Cause of Neurogenic Thoracic Outlet Syndrome: A Case Report
Challenging differential diagnosis, Rare disease
Shadi Hamouri1ABDEF*, Mohammad AlQudah2ADF, Nabil Al-zoubi1ADF, Wisam Al Gargaz3EF, Hamza Jarboa'1BF, Erich Hecker4EFDOI: 10.12659/AJCR.928548
Am J Case Rep 2021; 22:e928548
Figure 3. Microscopic examination (H&E stain with 20× magnification) shows bone a forming lesion composed of anastomosing irregular trabeculae (black arrow) with multiple foci of sclerotic nidus. The trabeculae are lined by a single layer of osteoblasts (red arrow) with intervening loose fibrovascular stroma (blue arrow). No evidence for cellular atypia, abnormal mitotic figures, or necrosis.