CT and MR Imaging Findings of Cystic Adenomyosis of the Uterus: Report of Three Cases

Adenomyosis of the uterus is a relatively common gynecologic disease characterized by the presence of ectopic endometrial glands and stroma within the myometrium. Small cystic spaces (not larger than several mil-limeters) are invariably present, and these are filled with blood. Extensive hemorrhagic cystic adenomyosis,however, is rare, and there have been very few radiologic reports of this condition. We describe the CT and MRI features of three cases of histologically confirmed huge cystic adenomyosis.

Imaging Findings of Perineal Disease

The perineum is defined as the region of body below the pelvic diaphragm that lies within the boundaries of the pelvic outlet. It is the region which is home to pathologic conditions which include primary tumors, neoplasms of adjacent organs with secondary invo l vement, congenital or acquired cystic lesions and inflammatory lesions. In this article, we describe CT and MR imaging anatomy and various pathologic processes that affect this anatomic region, with a brief discussion. Emphasis is give n to imaging features that help to characterize specific lesions.

Pelvic Actinomycosis

PURPOSE: To demonstrate the radiologic characteristics of the pelvic actinomycosis. MATERIALS AND METHODS: We retrospectively reviewed the radiologic findings of seven patients with pathologically proven pelvic actinomycosis and analyzed the anatomical location, characteristics of the lesion and alteration of surrounding structures. RESULTS: The location of the lesions were the ovary and adnexa(n=4), rectum(n=1), cecum and terminalileum(n=1), and bladder(n=1). Three of the seven patients had a past history of intrauterine devices.Post-contrast enhanced CT showed an ill-defined mass with inhomogeneous enhancement and a tendency to invade th esurrounding normal tissue plane. CONCLUSION: Pelvic actinomycosis should be included in differential diagnosis when an unusually aggressive infiltrative mass is located in the pelvic cavity, especially in a patient with long-term use of intrauterine contraceptive devices.