Intra-renal adrenal adenoma: a compelling addition to the differential diagnosis of renal mass.
We report a case of an adrenal rest arising in the kidney of a 37-year-old male. An incidental 4.5 cm right upper pole mass with a minimal amount of fat was discovered on computed tomography scan. Laparoscopic renal exploration and biopsy revealed angiomyolipoma on frozen section. However, final pathological analysis of the partial nephrectomy specimen revealed intra-renal adrenal adenoma. The diagnosis was confirmed by immunohistochemistries and transmission electron microscopy. We review the reported literature on intra-renal adrenal adenoma and highlight the aspects that raise the index of suspicion for this entity on the differential diagnosis of renal masses.
Linder
Brian
B
Department of Urology, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia 20037, USA. Linder@gwmail.gwu.edu
Hong
Yoon
Y
Jarrett
Thomas
T
D000236:Adenoma / Q000175:diagnosis*; D000310:Adrenal Gland Neoplasms / Q000175:diagnosis*; D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D009361:Neoplasm Invasiveness