J Korean Radiol Soc.  1997 Mar;36(3):491-497.

CT and MRI Findings of Malignant Mixed Mullerian Tumor of the Uterus: Irradiation-associated vs Non-associated

• Lee MS
• Kim KH
• Lee TH
• Chin SY
• Park SY
• Lee SS

Abstract

PURPOSE
The purpose of this study is to present imaging findings of MMMT developed after irradiation and to compare them with those not associated with irradiation.
MATERIALS AND METHODS
Patients with pathologically-proven MMMT were divided into two groups ; group 1, with a history of pelvic irradiation (n=9), and group 2, without such history(n=4). With regard to tumor location, size, extent, degree of myometrial invasion, presence of enhancement, and internal texture of a tumor, we analyzed CT(n=10) and MR imaging (n=8) findings in each group.
RESULTS
The tumor was larger in group 1 (average 8.7 cm) than in group 2 (average 5.5 cm). In eight patients in group 1, the endometrial cavity was distended, with remarkable fluid retention, and a mass was found in the fundus or body. The junctional zone was disrupted and hemorrhagic or necrotic foci were found within the mass. In all patients in group 2 and in one in group 1, a tumor had replaced the endometrial cavity, without fluid retention.
CONCLUSION
Imaging findings of irradiation-associated MMMT appeared to be different from those not associated with irradiation. Where there are findings of a distended endometrial cavity filled with fluid andmural mass, one should be alert to the possibility of irradiation-associated MMMT.

Keyword

Uterine neoplasms, CT; Uterine neplasms, MR

MeSH Terms

Humans
Magnetic Resonance Imaging*
Uterus*