The Desmoid Tumor Research Foundation

June 2019

A desmoid tumor at the site of endometriosis surgery, coincident with the use of oral contraceptives

Author Information

Takamura M(1), Koga K(1), Emoto S(2), Kawai K(2), Osuga Y(1), Ishihara S(2).

(1)Dept of Obstetrics and Gynecology, The Univ of Tokyo, 7-3-1 Hongo Bunkyo Tokyo, 113-8655, Japan. (2)Dept of Surgical Oncology, The Univ of Tokyo, 7-3-1 Hongo Bunkyo, Tokyo, 113-8655, Japan.

Publication

J Minim Invasive Gyn

Summary

Here we report a case of 33 year-old woman with a 4-cm solid mass detected in her left adnexal area. She had previously undergone a laparoscopic surgery for endometriosis at age 29, and had been using combined oral contraceptives (COC) to prevent recurrence. The mass was diagnosed as a uterine fibroid on the basis of ultrasonography and MRI scans. GnRH agonist therapy for 3M resulted in shrinkage of the tumor. Using a second laparoscopy, we identified a tumor originating from the sigmoid colon. The pathological diagnosis was desmoid tumor. Gynecologists should consider the occurrence of desmoid tumor in patients who have been using COC and undergone previous surgeries.

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