Endocrinology, Diabetes & Metabolism Case Reports (Oct 2021)

Castration failure in prostate carcinoma due to a functioning adrenocortical carcinoma

  • Vishal Navani,
  • James F Lynam,
  • Steven Smith,
  • Christine J O’Neill,
  • Christopher W Rowe

DOI
https://doi.org/10.1530/EDM-21-0036
Journal volume & issue
Vol. 1, no. 1
pp. 1 – 6

Abstract

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We report concurrent metastatic prostatic adenocarcinoma (PC) and functioning androgen-secreting adrenocortical carcinoma (ACC) in a 77-year-old man. The failure to achieve adequate biochemical castration via androgen deprivation therapy (ADT) as treatment for PC metastases, together with elevated DHEA-S, androstenedione, and discordant adrenal tracer uptake on FDG-PET and PSMA-PET, suggested the presence of a concurrent functional primary adrenal malignancy. On histopathological analysis, scant foci of PC were present throughout the ACC specimen. Castration was achieved post adrenalectomy with concurrent drop in prostate-specific antigen. We outline the literature regarding failure of testosterone suppression on ADT and salient points regarding diagnostic workup of functioning adrenal malignancies.