Prostate gland & seminal vesicles

Acinar / ductal adenocarcinoma

Mucinous (colloid) adenocarcinoma

Topic Completed: 1 March 2012

Minor changes: 4 September 2020

Copyright: 2003-2021,, Inc.

PubMed search: prostatic mucinous adenocarcinoma

Komal Arora, M.D.
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Cite this page: Arora K. Mucinous (colloid) adenocarcinoma. website. Accessed December 7th, 2021.
Definition / general
Microscopic (histologic) description
  • Tumor cells float in pools of mucin
  • Resembles mucinous (colloid) carcinoma of breast
  • Has microglandular, cribriform, comedo, solid and hypernephroid patterns
  • Signet ring cells are rare
Positive stains
Differential diagnosis
  • Extension of large bowel carcinoma, Cowpers gland carcinoma
  • Mucinous adenocarcinoma of bladder (PSA-, PAP+)
  • Post-hormone treatment changes which leave behind acellular pools of mucin (Am J Surg Pathol 1998;22:347)
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