Table of ContentsDefinition / general | Terminology | Epidemiology | Sites | Pathophysiology | Clinical features | Prognostic factors | Case reports | Gross description | Gross images | Microscopic (histologic) description | Microscopic (histologic) images | Positive stains | Molecular / cytogenetics description | Differential diagnosis | Additional references
Cite this page: Gonzalez R. Mucinous. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colontumorcolloid.html. Accessed November 25th, 2020.
Definition / general
- WHO recognized subtype of colorectal carcinoma with mucin lakes comprising at least 50% of tumor mass
- Variably called "colloid carcinoma"
- Most commonly arises in the right colon (J Clin Pathol 2012;65:381)
- Exophytic, gelatinous mass
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
Molecular / cytogenetics description