[Imaging evaluation and interventional therapy of hepatic metastases from small intestinal leiomyosarcoma].
OBJECTIVE
To evaluate the imaging appearances and the short-term curative effect of hepatic metastases from small intestine leiomyosarcoma treated by interventional methods.


METHODS
Seven cases with 46 lesions of hepatic metastases from small intestinal leiomyosarcoma were analyzed retrospectively. The diameters of the metastases were from 2 cm to 18 cm. CT triphasic scan and hepatoarterial angiography were performed in all cases. The interventional therapy methods included transcatheter arterial chemoembolization (TACE) (all 7 cases), percutaneous left subclavian artery port-catheter system implantation (PCS) (1 case). Three cases were also treated with percutaneous tumor necrosis drainage (PTND) because of obvious liquefaction necrosis within the tumor.


RESULTS
The lesions were substantial occupation and some were mixed density with cystic component. The cystic component increased in the larger tumor. The hepatic metastases were enhanced remarkably during the hepatic arterial-dominant phase scan and had abundant tumor vascular and tumor stain on hepatoarterial angiography. The size of tumor in 4 cases was reduced after TACE. The tumor in the patient who was treated with PCS had no changed. The size of the tumor in 3 cases was slightly enlarged. The tumors in the 3 patients treated with PTND were reduced remarkably.


CONCLUSIONS
The predominant blood-supply of the hepatic metastases from small intestinal leiomyosarcoma is the hepatic artery abundant in blood vessels. TACE, PCS and PTND are effective methods to treat hepatic metastases from small intestinal leiomyosarcoma.
Liu
R
R
Department of Radiology, Zhongshan Hospital, Medical Center of Fudan University, Shanghai 200032, China.
Wang
J
J
Yan
Z
Z
Liu
Q
Q
Qian
S
S
Shao
G
G
D000792:Angiography; D006499:Hepatic Artery; D006801:Humans; D007890:Leiomyosarcoma / Q000098:blood supply / Q000175:diagnosis* / Q000628:therapy; D008113:Liver Neoplasms / Q000098:blood supply / Q000175:diagnosis* / Q000556:secondary / Q000628:therapy; D009389:Neovascularization, Pathologic; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed