The patient went on to have surgery.

Histology

MICROSCOPIC DESCRIPTION: Sections show adrenal gland and adipose tissue. There is a proliferation of dilated thin walled CD31+, CD34+, M2A- vessels in the medulla. The vessels are surrounded by thick cuffs of amorphous eosinophilic extracellular material containing erythrocytes and some hemosiderin. The eosinophilic material is negative in Masson and Congo Red stains. It most likely represents extravasated plasma proteins. There is a separate focus of dystrophic calcification in the medulla. The cortex is unremarkable. H+E stains and cytokeratin immunohistochemistry (AE1/AE3, CAM5.2) show no evidence of malignancy.

FINAL DIAGNOSIS: Left adrenal hemangioma and a benign calcified nodule.