J Korean Radiol Soc.  1994 Sep;31(3):511-514.

Rectal Leiomyosarcoma: Report of Two Cases

• Cho OK
• Rhim HC
• Koh BH
• Hahm CK
• Baek JH

Abstract

PURPOSE
To evaluate the radiologic manifestations of the rectal leiomyosarcoma.
MATERIALS AND METHODS
We reviewed CT and barium study of 2 cases of rectal leiomyosarcoma, which were operated and pathologically proved.
RESULTS
In both cases colon studies showed a huge smooth marginated filling defect in the rectum. Precontrast CT scans showed a well-circumscribed, slightly Iobulated, inhomogeneous mass without calcification. Postcontrast scans showed minimal enhancement with internal low-density areas. In pathologic specimens there were large areas of necrosis and hemorrhage in the masses. Pericolic fat infiltration, lymph node metastasis, or distant metastasis were not detected.
CONCLUSION
Leiomyosarcoma is rarely developed in the rectum, but general radiologic findings are similar to that of other part of the gastrointestinal tracts except for the tendency of intraluminal growth due to narrow pelvic space.

MeSH Terms

Barium
Colon
Gastrointestinal Tract
Hemorrhage
Leiomyosarcoma*
Lymph Nodes
Necrosis
Neoplasm Metastasis
Rectum
Tomography, X-Ray Computed
Barium