lesions

FOG MACHINES

Fibrous Dysplasia, Fibrosarcoma

Osteoblastoma/ Osteoid Osteoma / Osteosarcoma

Giant Cell Tumour 

Malignancy / Mets / Myeloma

Primary

- Ewing's, Osteosarcoma, Chondrosarcoma

- Myeloma

Secondary

- Metastasis

- leukaemia, lymphoma

Anatomy

Terminal branch of the posterior cord

- lateral to radial nerve

- behind axillary artery

- runs over inferolateral border of SSC

- enters quadrangular space

Quadrangular space

- SSC superiorly anterior

- T major inferior

- T minor superiorly posterior

- long head triceps and humerus

Divides into anterior and posterior branches