Accessory Adrenal Cortex in Kidney with Clear Cell
Renal Cell Carcinoma |
Accessory Adrenal Cortex in Kidney with Clear Cell
Renal Cell Carcinoma |
Mi Sun Choe; Hyuk Soo Chang |
|
|
Abstract |
The accessory adrenocortical tissue is most often encountered around the adrenal
glands themselves or sex organs. The frequency of accessory adrenal tissue in kidney is unknown
but is apparently rare. We present a case of accessory adrenal gland in kidney involved by
primary renal cell carcinoma. A 50-year-old male underwent radical nephrectomy for an
incidentally detected renal mass. On pathologic examination; there was an accessory adrenal gland
underneath the renal capsule in addition to clear cell renal cell carcinoma in the upper pole.
Immunohistochemical staining results (inhibin+; D2-40+; CD10-; and CK-) were consistent with
adrenal cortical tissue. It is important to be aware of the existence of accessory pararenal or
intrarenal adrenal tissue. Ectopic adrenal tissue with clear cytoplasm may be misdiagnosed as
renal cell carcinoma. In addition; a renal cell carcinoma involving accessory intrarenal adrenal
tissue may be overstaged as renal cell carcinoma invading adrenal gland. |
Key Words:
accessory, adrenal gland, clear cell, renal cell carcinoma |