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Ovarian small cell carcinoma of the hypercalcemic type (view source)
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'''Ovarian small cell carcinoma of the hypercalcemic type''', abbreviated '''OSSCHT''', is a rare [[malignant]] [[ovarian tumour]]. | |||
''Small cell carcinoma, hypercalcemic type'', and ''small cell carcinoma of the ovary, hypercalcemic type'' redirect here. | |||
A proposed name of the entity is ''malignant rhabdoid tumour of the ovary'', abbreviated ''MRTO''.<ref name=pmid24752781>{{Cite journal | last1 = Foulkes | first1 = WD. | last2 = Clarke | first2 = BA. | last3 = Hasselblatt | first3 = M. | last4 = Majewski | first4 = J. | last5 = Albrecht | first5 = S. | last6 = McCluggage | first6 = WG. | title = No small surprise - small cell carcinoma of the ovary, hypercalcaemic type, is a malignant rhabdoid tumour. | journal = J Pathol | volume = 233 | issue = 3 | pages = 209-14 | month = Jul | year = 2014 | doi = 10.1002/path.4362 | PMID = 24752781 }}</ref> | |||
==General== | |||
*Hypercalcemia.<ref name=pmid7943531>{{Cite journal | last1 = Young | first1 = RH. | last2 = Oliva | first2 = E. | last3 = Scully | first3 = RE. | title = Small cell carcinoma of the ovary, hypercalcemic type. A clinicopathological analysis of 150 cases. | journal = Am J Surg Pathol | volume = 18 | issue = 11 | pages = 1102-16 | month = Nov | year = 1994 | doi = | PMID = 7943531 }}</ref> | |||
*Very rare. | |||
*Most common undifferentiated ovarian malignancy in individuals less than 40 years old.<ref name=pmid24658002/> | |||
*Associated with SMARCA4 mutations - may be familial.<ref name=pmid24658002>{{cite journal |author=Witkowski L, Carrot-Zhang J, Albrecht S, ''et al.'' |title=Germline and somatic SMARCA4 mutations characterize small cell carcinoma of the ovary, hypercalcemic type |journal=Nat. Genet. |volume=46 |issue=5 |pages=438–43 |year=2014 |month=May |pmid=24658002 |doi=10.1038/ng.2931 |url=}}</ref> | |||
==Microscopic== | |||
Features:<ref name=pmid7943531/> | |||
*Small cell carcinoma. | |||
*Follicle-like spaces. | |||
DDx: | |||
*[[Small cell carcinoma of the lung]]. | |||
*[[Small cell carcinoma of the cervix]]. | |||
*[[Sertoli-Leydig cell tumour]]. | |||
*[[Juvenile granulosa cell tumour]]. | |||
===Images=== | |||
www: | |||
*[http://webpathology.com/image.asp?n=6&Case=531 OSSCHT - low mag. (webpathology.com)]. | |||
*[http://webpathology.com/image.asp?case=531&n=5 OSSCHT - high mag. (webpathology.com)]. | |||
<gallery> | |||
Image:Small_cell_carcinoma_of_the_ovary_hypercalcemic_type_-_low_mag.jpg | OSSCHT - low mag. (WC) | |||
Image:Small_cell_carcinoma_of_the_ovary_hypercalcemic_type_-_intermed_mag.jpg | OSSCHT - intermed. mag. (WC) | |||
Image:Small_cell_carcinoma_of_the_ovary_hypercalcemic_type_-_high_mag.jpg | OSSCHT - high mag. (WC) | |||
Image:Small_cell_carcinoma_of_the_ovary_hypercalcemic_type_-_very_high_mag.jpg | OSSCHT - very high mag. (WC) | |||
</gallery> | |||
==IHC== | |||
Features:<ref name=pmid17727473>{{Cite journal | last1 = Carlson | first1 = JW. | last2 = Nucci | first2 = MR. | last3 = Brodsky | first3 = J. | last4 = Crum | first4 = CP. | last5 = Hirsch | first5 = MS. | title = Biomarker-assisted diagnosis of ovarian, cervical and pulmonary small cell carcinomas: the role of TTF-1, WT-1 and HPV analysis. | journal = Histopathology | volume = 51 | issue = 3 | pages = 305-12 | month = Sep | year = 2007 | doi = 10.1111/j.1365-2559.2007.02790.x | PMID = 17727473 }}</ref> | |||
*WT-1 +ve. | |||
*TTF-1 -ve. | |||
*HPV -ve. | |||
*p16 +ve/-ve. | |||
==See also== | |||
[[Miscellaneous ovarian tumours]]. | |||
==References= | |||
{{Reflist|2}} | |||
[[Category:Diagnosis]] | [[Category:Diagnosis]] | ||
[[Category:Ovarian tumours]] | |||