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=Adipocytic tumours= | =Adipocytic tumours= | ||
==Hibernoma== | |||
===General=== | |||
*Consists of ''brown fat'' (present in the infants to generate heat).<ref>WMSP P.605.</ref> | |||
*Benign. | |||
*Usually asymptomatic.<ref name=pmid19131775>{{cite journal |author=Ahmed SA, Schuller I |title=Pediatric hibernoma: a case review |journal=J. Pediatr. Hematol. Oncol. |volume=30 |issue=12 |pages=900–1 |year=2008 |month=December |pmid=19131775 |doi=10.1097/MPH.0b013e318184e6dd |url=}}</ref> | |||
===Epidemiology=== | |||
*Young adults. | |||
===Gross=== | |||
*Well-circumscribed. | |||
*Lobulated and light-brown on sectioning. | |||
===Microscopic=== | |||
Features:<ref>{{cite journal |author=Chen DY, Wang CM, Chan HL |title=Hibernoma. Case report and literature review |journal=Dermatol Surg |volume=24 |issue=3 |pages=393–5 |year=1998 |month=March |pmid=9537018 |doi= |url=}}</ref> | |||
*Large polygonal/oval cells: | |||
**Nucleus - central & small.<ref>[http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675(06)70271-6 http://www.pathconsultddx.com/pathCon/diagnosis?pii=S1559-8675(06)70271-6]</ref> | |||
***Nucleoli typically prominent.<ref>[http://surgpathcriteria.stanford.edu/softfat/hibernoma/ http://surgpathcriteria.stanford.edu/softfat/hibernoma/]</ref> | |||
**Cytoplasm - multivacuolated, oval, eosinophilic, granular. | |||
Image: | |||
*[http://en.wikipedia.org/wiki/File:Hibernoma1.jpg Hibernoma (WC)]. | |||
==Liposarcoma== | ==Liposarcoma== | ||
*Most common malignant sarcoma in the retroperitoneum. | *Most common malignant sarcoma in the retroperitoneum. | ||
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*Factor VIII +ve. | *Factor VIII +ve. | ||
=Other= | |||
==Neurofibromatosis== | ==Neurofibromatosis== | ||
Comes in two flavours: | Comes in two flavours: | ||
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## Schwannoma. | ## Schwannoma. | ||
## Juvenile cataract. | ## Juvenile cataract. | ||
==Small round blue cell tumours (SRBCT)== | ==Small round blue cell tumours (SRBCT)== |
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