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Journal of Postgraduate Medicine
Medknow Publications and Staff Society of Seth GS Medical College and KEM Hospital, Mumbai, India
ISSN: 0022-3859 EISSN: 0022-3859
Vol. 52, No. 4, 2006, pp. 262-265
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Bioline Code: jp06091
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Postgraduate Medicine, Vol. 52, No. 4, 2006, pp. 262-265
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Laparotomy for post chemotherapy residue in ovarian germ cell tumors
Mathew GK, Singh SS, Swaminathan RG, Tenali SG
Abstract
Background : Primary conservative surgery and cisplatin-based chemotherapy have resulted in high cure ratesin malignant ovarian germ cell tumors. A significant proportion of advanced tumors may have post-chemotherapyresidue and it is important to distinguish necrosis or fibrosis without viable tumor from persistent viable tumorand teratoma.
Aims : To evaluate the role of laparotomy in assessing the nature of post-chemotherapy residue in ovariangerm cell tumors.
Materials and Methods : Eighty-three patients with malignant ovarian germ cell tumors seen at Cancer Institute,Chennai between 1992 and 2002 were studied. Sixty-eight patients completed combination chemotherapywith cisplatin regimes, of whom 35 had radiological residual masses. Twenty-nine out of these 35 patientsunderwent laparotomy to assess the nature of the residue.
Results : On laparotomy, three patients had viable tumor, seven immature teratoma, three mature teratomaand 16 only necrosis or fibrosis. None of our patients with dysgerminoma, embryonal carcinoma, absence ofteratoma element in the primary tumor and radiological residue of < 5 cm had viable tumor whereas all patientswith tumors containing teratoma component initially had residual tumor. Absence of viable disease was higherin patients who had normalization of serum markers by two cycles of chemotherapy.
Conclusion : Our study suggests that patients with absence of teratoma element initially, radiological residue of < 5 cm and normalization of serum markers after two cycles of chemotherapy do not require surgery to assessthe nature of post-chemotherapy residue. However, laparotomy should be performed in patients with tumorsthat initially contain teratoma element and in those with sluggish tumor marker response after two cycles ofchemotherapy since they have a high chance of having viable postchemotherapy residue.
Keywords
Laparotomy, ovarian germ cell tumor, post-chemotherapy residue
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