Prostatic stromal tumour of uncertain malignant potential
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Prostatic stromal tumour of uncertain malignant potential, usually abbreviated STUMP, is a rare lesion of the prostatic stroma which cannot be definitively classified as benign or malignant.
General
- Rare.
Microscopic
Features:
Note:
- May be seen with glandular abnormalities.[1]
DDx:
- Prostatic stromal sarcoma.[2]
- Leiomyosarcoma.
- Rhabdomyosarcoma.
IHC
Features:[2]
- ER +ve.
- PR +ve.
- Desmin +ve/-ve.
- CD34 +ve.
See also
References
- ↑ Nagar, M.; Epstein, JI. (Jun 2011). "Epithelial proliferations in prostatic stromal tumors of uncertain malignant potential (STUMP).". Am J Surg Pathol 35 (6): 898-903. doi:10.1097/PAS.0b013e318214f2f2. PMID 21572264.
- ↑ 2.0 2.1 De Berardinis, E.; Busetto, GM.; Antonini, G.; Giovannone, R.; Di Placido, M.; Magliocca, FM.; Di Silverio, A.; Gentile, V. (2012). "Incidental prostatic stromal tumor of uncertain malignant potential (STUMP): histopathological and immunohistochemical findings.". Urologia 79 (1): 65-8. doi:10.5301/RU.2012.9099. PMID 22388992.