Study Objectives: To evaluate the accuracy of magnetic resonance imaging (MRI) for diagnosing nodular adenomyosis by percutaneous myometrial biopsies.
Design: Prospective observational study.
Setting: Gynecology department of community hospitals.
Patients: Twenty women with severe dysmenorrhea, chronic menorrhagia, and an MRI diagnosis of adenomyomata.
Interventions: Several laparoscopically guided, percutaneous myometrial biopsy specimens were taken in an attempt to confirm histologically an MRI diagnosis of adenomyoma; and resectoscopic endomyometrial biopsy specimens were taken in an attempt to confirm an MRI diagnosis of adenomyosis.
Measurements And Main Results: Eighteen (90%) of the 20 women had an MRI diagnosis of adenomyosis histologically confirmed by myometrial biopsy. The remaining two (20.0%) had an MRI diagnosis of adenomyosis histologically confirmed by endomyometrial biopsy.
Conclusions: An MRl diagnosis of adenomyoma was confirmed by transabdominal uterine biopsy in most patients. These results, when combined with those obtained by resectoscopic endomyometrial biopsy, established a diagnosis of adenomyosis in all patients.
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