Mucinous Adenocarcinoma

Epidemiology:

Common sites:

Gross features:

Histologic features:

• >=25% of tumour containing lakes of extracellular mucin
• cribriform pattern often in mucinous areas
• rarely signet ring cells (contrast to mucinous bladder adenocarcinomas)
• not tall columnar epithelium resembling normal or neoplastic colonic epithelium (contrast to mucinous bladder adenocarcinomas)

Immunophenotype:

Marker:	Sensitivity:	Specificity:
PSA
PSAP		(note: some mucinous bladder adenoCA can have focal intense immunoreactivity)

Molecular features:

Other features:

• aggressive

References:

• Sternberg 2004