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Updated: Apr 16, 2026

Demonstration of Cutaneous Allodynia in Association with Chronic Pelvic Pain
Published on: June 23, 2009
Functional rudimentary horn as a rare cause of pelvic pain: a case report
Maliheh Arab1, Sepideh Mehdighalb2, Donya Khosravi2
1Preventative Gynecology Research Center (PGRC), Imam Hossein Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran ; Shahid Beheshti University of Medical Sciences, Tehran, IR Iran.
Introduction:
Pelvic pain results from many causes such as primary dysmenorrhea, uterine anomalies, menstrual outflow obstruction, endometriosis, myoma and adenomyosis. This study reports on a rare case of non-communicating functional rudimentary horn.
Case Presentations:
A 15-year-old nulligravida young woman with a history of severe intermittent pelvic pain presented a 4-5 centimeter mass. A surgical procedure for appendicitis was previously performed on this patient. Per-operative diagnosis was myoma and suspicion of leismus sarcoma. Laparotomy revealed left rudimentary horn, non-communication was confirmed by postoperative hysterosalpingogram (HSG) and magnetic resonance imaging (MRI). Resection of mass and left fallopian tube was done during the second surgery.
Conclusions:
Rudimentary horn should be considered in differentiation of pelvic pain and mass in young females. Early diagnosis and horn resection prevents emergency surgery and reliefs pain.
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