1 The literature concerning leiomyosarcoma of the kidney is reviewed.

2 Leiomyosarcoma is the most common primary renal sarcoma.

3 Objective To analyse misdiagnosis causes of intestinal leiomyosarcoma.

4 Diagnostic criteria of leiomyosarcoma, fibrosarcoma, non Hodgkin′s lymphoma of the prostate are the same as their counterparts in the soft tissue.

5 One of the major components in leiomyosarcoma was purified and characterized by HPTLC, acid hydrolysis, glycosidase treatment and binding with specific McAbs on HPTLC plates.

6 Results: Gastric leiomyosarcoma of primary malignant tumors of the stomach.

7 A rare case of primary renal leiomyosarcoma presenting with spontaneous perirenal hematoma was reported.

8 Results 3 cases were considered as small intestinal leiomyosarcoma and 1 case was considered as jejunal haemangioma preop eratively.

9 Leiomyosarcoma and dermatofibrosarcoma increased rapidly during the childbearing yearsage 40 and 50 years, respectively.

10 Of 875 surgical specimens of esophagus, 2 cases were diagnosed as esophageal leiomyosarcoma and 2 cases carcinosarcoma.

11 From 1974 to 1988,16 cases of smooth muscle tumors of stomach were operated in our hospital. It contained of gastric leiomyoma(11 cases), leiomyosarcoma(4 cases)and leiomyoblastoma(1 case).

12 After describing the case, we review the literature on the clinical behavior and management of leiomyosarcoma.

13 We present a case of squamous cell carcinomas of the buccal mucosa and metachronous leiomyosarcoma in the same region and review the associated literature.

14 In the earlier literature, GIST was diagnose as smooth muscle tumor, leiomyoma, leiomyoblastoma, and leiomyosarcoma.

15 The histopathologic classification is very complex and includes uterine leiomyosarcoma, carcinosarcoma, endometrial stromal sarcoma and unclassified sarcoma.