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Updated: Aug 16, 2025
Teratoma Generation in the Testis Capsule
Published on: November 7, 2011
[Mature teratoma with malignant differentiation treated with peritonectomy with HIPEC]
Magaly Denise Peña-Arriaga1, Diana Paola Ramírez-Salado1, Laura Denisse Ramírez-González2
1Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Oncología, Servicio de Tumores Ginecológicos. Ciudad de México, México.
Background:
Mature teratomas belong to the group of germ line ovarian tumors; they generally have benign behavior. Malignant transformation occurs in 0.2% to 1% of tumors. The objective is to show the results of peritonectomy with HIPEC in the treatment of a mature teratoma with malignant differentiation with signet ring cells.
Clinical Case:
43-year-old woman diagnosed with mature malignant teratoma with signet ring cells. It was performed optimal primary cytoreduction surgery, total hysterectomy, bilateral salpingo-oophorectomy, peritonectomy, appendectomy, cholecystectomy and splenectomy adding intraoperative hyperthermic chemotherapy (HIPEC).
Conclusions:
Malignant transformation of a mature teratoma of the ovary is a rare event, but not exceptional. HIPEC was used after optimal cytoreduction, with good results, since the patient is in a disease-free period of 36 months. It is necessary to report cases in order to compare different types of treatment to improve oncological results.
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