Colon tumor
Carcinoma
Mucinous carcinoma of colon

Author: Raul Gonzalez, M.D. (see Authors page)

Revised: 3 August 2018, last major update September 2015

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Mucinous carcinoma [title] colon
Cite this page: Gonzalez, R. Mucinous carcinoma of colon. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colontumorcolloid.html. Accessed August 18th, 2018.
Definition / general
  • WHO recognized subtype of colorectal carcinoma with mucin lakes comprising at least 50% of tumor mass
Terminology
  • Variably called "colloid carcinoma"
Epidemiology
Sites
Pathophysiology
Clinical features
Prognostic factors
Case reports
Gross description
  • Exophytic, gelatinous mass
Gross images

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Causing intussusception

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Cecal tumor

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Arising in villous adenoma

Microscopic (histologic) description
  • Adenocarcinoma with strips of tumor cells floating in large extracellular mucin lakes comprising at least half of tumor mass
  • Signet ring cells (with intracellular mucin) may also be present but should comprise less than half of tumor
Microscopic (histologic) images

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Pools of mucus

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Low power

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Extracellular mucin

Positive stains
Molecular / cytogenetics description
Differential diagnosis