Ovary tumor
Other tumors not specific to ovary

Author: Nalini Gupta, M.D. (see Authors page)

Revised: 6 July 2016, last major update December 2014

Copyright: (c) 2003-2016, PathologyOutlines.com, Inc.

PubMed Search: Osteosarcoma [title] ovary
Cite this page: Osteosarcoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/ovarytumorosteosarcoma.html. Accessed March 30th, 2017.
Definition / General
  • Osteosarcomas (OS) involving ovary are of three types:
    1. Pure/primary
    2. Arising in teratoma
    3. Metastatic
  • Pure osteosarcomas do not have the mesenchymal component of a biphasic tumor; are very rare, aggressive tumors (Int J Gynecol Pathol 2007;26:21)
Clinical Features
  • Rapidly enlarging lower abdominal mass
  • Vaginal bleeding
Radiology Description
  • CT: Heterogenous mass with or without areas of calcification / ossification
  • MRI: Heterogenous mass with solid and cystic areas
Prognostic Factors
Case Reports
  • Surgery with adjuvant chemotherapy (cisplatin-doxorubicin)
Clinical Images

Images hosted on other servers:
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Large recurrent solid pelvic mass

Gross Description
  • Solid cystic tumor mass, mean size of 13 cm
Micro Description
  • Scattered areas of osteoid formation with anaplastic cells
  • Multinucleate giant cells, areas of cystic degeneration / necrosis
  • No epithelial component
Micro Images

Images hosted on other servers:
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Arising from teratoma

Positive Stains
Negative Stains
Differential Diagnosis