"Hyperaemia and disuse caused by shoulder problems (such as rotator cuff disorders) cause this area of lucency to appear more lucent and mimic a lytic lesion (e.g. chondroblastoma, infection, or even a metastatic focus) and mistakenly undergo biopsy ref. Therefore, pseudocysts of the humerus are one of the skeletal "do not touch" lesions."
Expected headings
"Bone scan"