Immature ovarian teratoma with mature peritoneal metastatic deposits showing glial, epithelial, and endometrioid differentiation: a case report and review of the literature

Calder CJ, C J Calder, A M Light, Light AM, Rollason TP, T. P. Rollason
International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists · 1994 · doi:10.1097/00004347-199407000-00013 · PMID:7928061
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This case report describes a patient with peritoneal metastases from an immature ovarian teratoma exhibiting endometrioid differentiation twenty years after initial tumor removal, highlighting rare long-term malignant transformation in teratomas.

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This case report describes a patient who developed multiple peritoneal metastases twenty years after the removal of a grade 1 immature ovarian teratoma. The metastatic deposits exhibited mature differentiation into glial, epithelial, and endometrioid tissues, representing a unique clinical presentation distinct from previously reported cases of gliomatosis peritonei. The authors highlight the significance of these well-differentiated metastases in comparison to similar occurrences in testicular teratomas. Relevance to endometriosis: The paper explicitly discusses endometrioid differentiation within the context of metastatic ovarian teratoma, linking it to endometriosis as a histological feature of the disease process.

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Abstract

A patient with multiple peritoneal metastases showing mature (grade 0) glial, epithelial, and endometriotic differentiation occurring 20 years after removal of a grade 1 immature ovarian teratoma is reported. Although previous cases of endometriosis occurring in association with gliomatosis peritonei and a case of epithelial differentiation in metastases from an immature ovarian teratoma have previously been reported, this case would appear to be unique. Attention is drawn to similar, well-differentiated, metastases occurring in testicular teratomas.
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Brief Communication: PDF Only Immature Ovarian Teratoma with Mature Peritoneal Metastatic Deposits Showing Glial, Epithelial, and Endometrioid Differentiation: A Case Report and Review of the Literature - C J Calder - A M Light - T P Rollason International Journal of Gynecological Pathology 13(3):p 279-282, July 1994. Summary: A patient with multiple peritoneal metastases showing mature (grade 0) glial, epithelial, and endometriotic differentiation occurring 20 years after removal of a grade 1 immature ovarian teratoma is reported. Although previous cases of endometriosis occurring in association with gliomatosis peritonei and a case of epithelial differentiation in metastases from an immature ovarian teratoma have previously been reported, this case would appear to be unique. Attention is drawn to similar, well-differentiated, metastases occurring in testicular teratomas. Copyright ©1994International Society of Gynecological Pathologists

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Condition tags

endometriosis

MeSH descriptors

Ovarian Neoplasms Peritoneal Neoplasms Teratoma Cell Differentiation Child Female Humans Ovarian Neoplasms Peritoneal Neoplasms Retrospective Studies Teratoma Teratoma

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