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| ==Sertoli-Leydig cell tumour== | | ==Sertoli-Leydig cell tumour== |
| *[[AKA]] ''androblastoma''. | | *[[AKA]] ''androblastoma''. |
| ===General===
| | {{Main|Sertoli-Leydig cell tumour}} |
| *Sertoli and leydig cells are normal in the [[testis]].
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| *Poorly differentiated tumours have sarcomatous features.<ref name=Ref_PBoD1103>{{Ref PBoD|1103}}</ref>
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| ===Microscopic===
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| Features:
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| # Sertoli ''or'' Leydig cells.<ref name=Ref_PBoD1103>{{Ref PBoD|1103}}</ref>
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| #* Leydig cells:
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| #** Abundant solid eosinophilic cytoplasm.
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| #** Round nuclei with fine chromatin and a small or indistinct [[nucleolus]].
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| #** Often in small clusters ~ 5-25 cells/cluster.
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| #* Sertoli cells:
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| #** Pale/clear vacuolated cytoplasm.
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| #** Irregular nuclei with irregular/vacuolated-appearing chromatin.
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| #** Architecture: tubules, cords or sheets.
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| # Stroma.
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| # +/- Sarcomatous features (mucinous glands, bone, cartilage).
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| DDx:
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| *[[Endometrioid carcinoma of the ovary]].
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| *Luteinized adult granulosa cell tumour - super rare, 50% of cell with eosinophilic cytoplasm, other findings of granulosa cell tumour, e.g. Call-Exner bodies.<ref name=pmid21804396>{{Cite journal | last1 = Ganesan | first1 = R. | last2 = Hirschowitz | first2 = L. | last3 = Baltrušaitytė | first3 = I. | last4 = McCluggage | first4 = WG. | title = Luteinized adult granulosa cell tumor--a series of 9 cases: revisiting a rare variant of adult granulosa cell tumor. | journal = Int J Gynecol Pathol | volume = 30 | issue = 5 | pages = 452-9 | month = Sep | year = 2011 | doi = 10.1097/PGP.0b013e318214b17f | PMID = 21804396 }}</ref>
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| ====Images====
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| <gallery>
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| Image:Sertoli-Leydig_cell_tumour_-_intermed_mag.jpg | Sertoli-Leydig cell tumour - intermed. mag. (WC)
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| Image:Sertoli-Leydig_cell_tumour_-_high_mag.jpg | Sertoli-Leydig cell tumour - high mag. (WC)
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| Image:Sertoli-Leydig_cell_tumour_-_very_high_mag.jpg | Sertoli-Leydig cell tumour - very high mag. (WC)
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| </gallery>
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| www:
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| *[http://path.upmc.edu/cases/case270/micro.html Sex cord stromal tumour with Sertoli-Leydig component - several images (upmc.edu)].
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| ===IHC===
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| Features:<ref name=pmid19033865>{{Cite journal | last1 = Zhao | first1 = C. | last2 = Vinh | first2 = TN. | last3 = McManus | first3 = K. | last4 = Dabbs | first4 = D. | last5 = Barner | first5 = R. | last6 = Vang | first6 = R. | title = Identification of the most sensitive and robust immunohistochemical markers in different categories of ovarian sex cord-stromal tumors. | journal = Am J Surg Pathol | volume = 33 | issue = 3 | pages = 354-66 | month = Mar | year = 2009 | doi = 10.1097/PAS.0b013e318188373d | PMID = 19033865 }}</ref>
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| *WT-1 +ve.
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| *Melan A (MART-1) +ve - marks the Leydig component.
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| *Vimentin +ve.<ref name=pmid20349790>{{Cite journal | last1 = Kondi-Pafiti | first1 = A. | last2 = Grapsa | first2 = D. | last3 = Kairi-Vassilatou | first3 = E. | last4 = Carvounis | first4 = E. | last5 = Hasiakos | first5 = D. | last6 = Kontogianni | first6 = K. | last7 = Fotiou | first7 = S. | title = Granulosa cell tumors of the ovary: a clinicopathologic and immunohistochemical study of 21 cases. | journal = Eur J Gynaecol Oncol | volume = 31 | issue = 1 | pages = 94-8 | month = | year = 2010 | doi = | PMID = 20349790 }}</ref>
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| *Calretinin +ve.
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| *CD99 +ve.
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| Others:<ref name=pmid20349790/>
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| *CD34 -ve.
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| *Cytokeratin -ve (usually).
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| ==Hilus cell tumour== | | ==Hilus cell tumour== |