Urachal carcinoma: Difference between revisions
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| Caption = Urachal carcinoma. [[H&E stain]]. | | Caption = Urachal carcinoma. [[H&E stain]]. | ||
| Micro = atypical cells - usually gland forming, +/-mucinous, +/-signet rings | | Micro = atypical cells - usually gland forming, +/-mucinous component, +/-signet rings | ||
| Subtypes = enteric, mucinous, signet ring | | Subtypes = enteric, mucinous, signet ring | ||
| LMDDx = [[adenocarcinoma of the urinary bladder]], invasive [[urothelial carcinoma]] with glandular differentiation, [[metastatic]] adenocarcinoma | | LMDDx = [[adenocarcinoma of the urinary bladder]], invasive [[urothelial carcinoma]] with glandular differentiation, [[metastatic]] adenocarcinoma | ||
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==Microscopic== | ==Microscopic== | ||
Features: | Features: | ||
*Usually adenocarcinoma. | *Atypical cells. | ||
**May be signet ring cells. | |||
*Usually gland forming, i.e. adenocarcinoma. | |||
*+/-Mucinous component. | |||
*Adjacent urothelium typically benign. | *Adjacent urothelium typically benign. | ||