Pelvic Desmoid Tumour Imitating Uterine Leiomyoma in a Nigerian Premenopausal Woman

Summary

This was a 44-year-old, para 2 (2 alive) who was referred to our gynaecology clinic from a secondary health facility on account of slowly increasing abdominal swelling of 2 years duration. There was no nausea, vomiting or diarrhea. There was associated mild to moderate dull lower abdominal pain that did not radiate to any other part of the body. There was no change in her monthly menstrual flow. Physical examination revealed a pelvic mass about 32 weeks pregnancy size and firm. Computed Topography scan showed a huge pedunculated sub-serous uterine fibroid. A huge mass adherent to the anterior surface of the body of the uterus was completely surgically excised at exploratory laparotomy. Histology of the excised tumour revealed a definitive histological diagnosis of pelvic desmoid tumour. The patient was clinically stable and discharged home 10 days post operation and was followed-up on out-patient gynaecology clinic basis. Pelvic desmoid tumour should be considered as a differential diagnosis in premenopausal women who present with abdominal swelling.