Mature cystic teratoma of both the fallopian tube and contralateral ovary: a case report

J M Rhymes, Rhymes JM, Gorman T, T Gorman, R A Sasso, Sasso RA
Clinical and experimental obstetrics & gynecology · 2015 · vol. 42(6) , pp. 812–3 · doi:10.12891/ceog2051.2015 · PMID:26753493
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This case report describes a rare intratubal mature cystic teratoma with a contralateral ovarian dermoid in a 19-year-old woman, demonstrating that preoperative ultrasound facilitates accurate intraoperative diagnosis and surgical management.

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⚙ AI-generated deep summary by qwen3.7-flash, 2026-08-25 · read from full text ⓘ

This case report describes a rare presentation of a completely intratubal mature cystic teratoma in a 19-year-old woman who also had a contralateral ovarian dermoid. The patient presented with pelvic pain and severe dysmenorrhea, and preoperative ultrasound findings guided the surgical management during laparoscopy, which revealed an obstructed left fallopian tube containing an inflammatory mass. The authors conclude that while such intratubal tumors are uncommon, clinicians should consider this diagnosis when identifying tubal masses, noting the critical role of ultrasound in facilitating accurate intraoperative identification. Relevance to endometriosis: listed as a differential diagnosis for pelvic pain and adnexal masses, though the paper's main focus is on a rare benign germ cell tumor rather than endometriosis or adenomyosis.

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Abstract

UNLABELLED: Intratubal teratoma is a very rare condition. The authors believe to present the first case of a completely intratubal mature cystic teratoma with a contralateral intraovarian teratoma. Preoperative ultrasound examination allowed the intraoperative diagnosis of this rare condition, hence allowing appropriate surgical management. MATERIALS AND METHODS: A 19-year-old woman presented with a history of pelvic pain and severe dysmenorrhea. Ultrasound examination initially suggested bilateral ovarian dermoids. Upon laparoscopy, the distal left fallopian tube was obstructed and contained an inflammatory mass adhered to the rectosigmoid. The left ovary was entirely normal. A contralateral intraovarian dermoid was also identified. CONCLUSION: Although rare, when an intratubal mass is identified, consideration of intratubal dermoid should be given. Preoperative ultrasound can be of critical importance to the intraoperative diagnosis.
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Abstract

Intratubal teratoma is a very rare condition. The authors believe to present the first case of a completely intratubal mature cystic teratoma with a contralateral intraovarian teratoma. Preoperative ultrasound examination allowed the intraoperative diagnosis of this rare condition, hence allowing appropriate surgical management. Materials and Methods: A 19-year-old woman presented with a history of pelvic pain and severe dysmenorrhea. Ultrasound examination initially suggested bilateral ovarian dermoids. Upon laparoscopy, the distal left fallopian tube was obstructed and contained an inflammatory mass adhered to the rectosigmoid. The left ovary was entirely normal. A contralateral intraovarian dermoid was also identified. Conclusion: Although rare, when an intratubal mass is identified, consideration of intratubal dermoid should be given. Preoperative ultrasound can be of critical importance to the intraoperative diagnosis.

Keywords

- Fallopian tube tumor - Dermoid cyst - Pelvic pain - Salpingectomy - Laparoscopy

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MeSH descriptors

Dermoid Cyst Fallopian Tube Neoplasms Neoplasms, Multiple Primary Ovarian Neoplasms Teratoma Dermoid Cyst Dermoid Cyst Dermoid Cyst Dermoid Cyst Diagnosis, Differential Fallopian Tube Neoplasms Fallopian Tube Neoplasms Fallopian Tube Neoplasms Fallopian Tube Neoplasms Female Humans Laparoscopy Neoplasms, Multiple Primary Neoplasms, Multiple Primary Neoplasms, Multiple Primary

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