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| LMDDx = [[granulosa cell tumour]], epithelioid [[adenomatoid tumour]], [[sertoli cell nodule]], [[Sertoli-Leydig tumour]] | | LMDDx = [[granulosa cell tumour]], epithelioid [[adenomatoid tumour]], [[sertoli cell nodule]], [[Sertoli-Leydig tumour]] | ||
| Stains = | | Stains = | ||
| IHC = alpha-inhibin, calretinin | | IHC = [[SF-1]] +ve, alpha-inhibin +ve, calretinin +ve/-ve, | ||
| EM = | | EM = | ||
| Molecular = | | Molecular = | ||
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==IHC== | ==IHC== | ||
*Alpha-inhibin +ve (~95% of cases<ref name=pmid17721194/>). | *Alpha-inhibin +ve (~95% of cases<ref name=pmid17721194/>). | ||
* | *[[Calretinin]] +ve (~55% of cases<ref name=pmid17721194/>). | ||
*Beta-catenin +ve (nuclear).<ref>{{cite journal |authors=Zhang C, Ulbright TM |title=Nuclear Localization of β-Catenin in Sertoli Cell Tumors and Other Sex Cord-Stromal Tumors of the Testis: An Immunohistochemical Study of 87 Cases |journal=Am J Surg Pathol |volume=39 |issue=10 |pages=1390–4 |date=October 2015 |pmid=26034868 |doi=10.1097/PAS.0000000000000455 |url=}}</ref> | *Beta-catenin +ve (nuclear).<ref>{{cite journal |authors=Zhang C, Ulbright TM |title=Nuclear Localization of β-Catenin in Sertoli Cell Tumors and Other Sex Cord-Stromal Tumors of the Testis: An Immunohistochemical Study of 87 Cases |journal=Am J Surg Pathol |volume=39 |issue=10 |pages=1390–4 |date=October 2015 |pmid=26034868 |doi=10.1097/PAS.0000000000000455 |url=}}</ref> | ||
**Negative beta-catenin should make one consider other diagnoses.{{fact}} | **Negative beta-catenin should make one consider other diagnoses.{{fact}} | ||
**May be negative in malignant sertoli cell tumours. | **May be negative in malignant sertoli cell tumours. | ||
*[[SF-1]] +ve.<ref name=pmid23165333>{{cite journal |authors=Sangoi AR, McKenney JK, Brooks JD, Higgins JP |title=Evaluation of SF-1 expression in testicular germ cell tumors: a tissue microarray study of 127 cases |journal=Appl Immunohistochem Mol Morphol |volume=21 |issue=4 |pages=318–21 |date=July 2013 |pmid=23165333 |doi=10.1097/PAI.0b013e318277cf5a |url=}}</ref> | |||
**Germ cell tumours -ve. | |||
Others: | Others: | ||
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*[[Leydig cell tumour]]. | *[[Leydig cell tumour]]. | ||
*[[Sertoli-Leydig tumour]]. | *[[Sertoli-Leydig tumour]]. | ||
*[[Sex cord-stromal tumours]] | |||
*[[Testis]]. | *[[Testis]]. | ||
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