Objective To discuss the efficacy of laparoscopy combined with uterine aspiration for tubal interstitial pregnancy and cornual pregnancy. Methods From January 2004 to January 2007,laparoscopy combined with the preservation of the oviducts was performed on 56 patients with tubal interstitial pregnancy or cornual pregnancy. During the operation,the ectopic pregnancy tissues were removed,and then uterine aspiration was carried out. Results The operation was completed in all of the cases without conversion to open surgery. One of the patients showed persistent ectopic pregnancy,and was cured by muscular injection of MTX injection. In this series,the rate of oviduct patency was 33.9% (19/ 56); 18 moths after the operation,the uterine pregnancy rate was 71.4% (40/56),ectopic pregnancy rate was 16.1%(9/56),and the secondary infertility rate was 1.2% (7/56). Conclusions It is safe and effective to treat tubal interstitial pregnancy or cornual pregnancy with laparoscopic operation combined with uterine aspiration.

Objective To explore the image features of benign fibrous histiocytoma of bone and its correlative differential diagnosis.Methods Nine cases of benign fibrous histiocytoma of bone were retrospectively analyzed by comparing the imaging findings with surgical and pathological results.Results In all 9 cases,the tumors were single,ranged from 10 mm?15 mm?20 mm to 50 mm?50 mm?60 mm in diameter,which appeared as round or oval destruction with clear border in the bone,neither calcification nor ossification.The border of tumors in 5 cases was accompanied by integrated sclerosis ring with homogeneous thickness.There were expanding changes in 6 cases,no expanding changes in 3 cases.4 cases underwent MRI,2 cases were homogeneous,low signal on both T1WI and T2WI,and 2 cases were low signal on T1WI and high signal on T2WI with low signal sclerosis ring in circumference.There were no periosteum reaction and soft-tissue tumor in 9 cases.Conclusion X-ray,CT and MRI are valuable in the diagnosis of benign fibrous histiocytoma of bone,for some typical cases,the correctly diagnosis of it can be made before operation.

Objective To explore the imaging findings and diagnostic values of X-ray, CT, MR,and ultrasonography in traumatic knee joints hemarthrosis and lipohemarthrosis. Methods Traumatic knee joints hemarthrosis (12 knees) and lipohemarthrosis (18 knees) proved by operation (27 knees) or puncturation (3 knees) were included in the study. Horizontal-beam plain radiographs (16 knees), CT (30 knees), MRI (30 knees) and ultrasonography (24 knees) in supine position were investigated. Results (1)supine position horizontal-beam plain radiographs: Fat-liquid layer was found in 8 cases of lipohemarthrosis. Dense supragenual bursa was found in 1 case of lipohemarthrosis and 7 cases of hemarthrosis. Fracture (13 knees) was diagnosed correctly. (2) CT findings: double fluid-fluid layer was found in 11 of all 18 cases, and single fluid-fluid layer was found in 7 of 11 cases of lipohemarthrosis. Single fluid-fluid layer was found in 3 of 12 cases of hemarthrosis. Isodensity was detected in 9 cases, and high-density blood clot was found in 4 cases. Fracture (30 knees) was diagnosed correctly. (3) MRI findings: in 12 of 18 cases of lipohemarthrosis, double fluid-fluid layer was shown including supernatant layer as short T1, long T2signal and low signal after fat-suppression, middle layer as long T1, long T2 signal and high signal after fat-suppression, and dependent layer as iso-T1, iso-T2 and slight high signal after fat-suppression. Single fluid-fluid layer was seen in 6 cases, only had aforementioned upper and under layer.Only aforementioned supernatant layer and dependent layer were seen in 12 cases of hemarthrosis. 4 cases showed entire blood clot in fluid, T1WI showed middle signal or center iso-signal accompanied with peripheral high signal ring, and fat-suppression imaging showed high signal. T2WI and fat-suppressionimaging showed middling or high signal accompanied with peripheral low signal ring. Fracture (30 knees) was diagnosed correctly. (4) Ultrasound findings: In 10 of 14 cases of lipohemarthrosis, double fluid-fluid level was shown, supernatant layer as equal echo, middle layer as echoless, and dependent layer as cloudy echo. Four cases with single fluid-fluid level only showed aforementioned upper and under layer. Three of 10 cases of hemarthrosis showed single fluid-fluid level, only showing aforementioned upper and under layer,and 7 cases showed cloudy echo and float. In 3 cases the fluid blood clot showed irregular shape low-equal echo bolus. No fracture hne was found. Conclusions CT can clearly detect fracture line, hemarthrosis and lipohemarthresis, and can substitute plain radiography. MRI is the best way to diagnose hemarthresis and lipohemarthrosis. Ultrasonography can be used in diagnosing hemarthresis and lipohemarthrosis but not helpful in the diagnosis of fracture.