Objective:To explore the reason why the CT manifestation of the patients with chronic nasosinusitis is negative.Method:To analyze the clinical and CT manifestation of the patients with chronic sinusitis having a negative CT manifestation.Result:Pathological changes were found in all 8 patients during the course of endoscopic sinus surgery, such as pus storing in the sinus cavity, mucous swelling polypoidly, small polyps formation and so on. Conclusion:The reasons that the patients with chronic sinusitis having a negative CT manifestation are, ①CT scan can only give a static one-off image, ② partial volume effect,③ maybe result from the location of CT scan and the resolving power of tomograph,④ maybe attribute to the pathological classify of chronic sinusitis.

Objective To evaluate the effects of Amplatz thrombectomy device (ATD), thrombolysis (TL), and surgical thrombectomy (TX) on venous wall morphology complicated with acute femoral vein thrombosis in dogs. Methods The femoral venous thrombosis model was induced in 36 adult mongrel dogs. The thrombosed veins were treated with ATD ( n =12), TL ( n =12), and TX ( n =12), respectively. Results Clearance of thrombus was successful in all cases. One week after treatment, the rate of venous patency in ATD, TL, and TX group was 75%, 33%, and 25%, respectively ( P

OBJECTIVETo search for an ideal method to repair large facial defects.

METHODSOne or two soft tissue expanders were implanted at the clavicular-pectoral region. After fully expansion, a clavicular-pectoral skin flap was designed and created with similar color, texture, and size to the facial defect. The flap would pass over the neck and transfer to the face to repair a large defect.

RESULTS10 cases were treated with this method. All have been followed up for 12-18 months with satisfactory results.

CONCLUSIONThe large facial defects could be repaired by the expanded clavicular-pectoral skin flap without damaging the natural neck contour and donor site abnormality was avoided. The patients get an aesthetic look and good function.

Adolescent ; Adult ; Child ; Clavicle ; Face ; abnormalities ; surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Pectoralis Muscles ; transplantation ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; methods ; Surgical Flaps ; Treatment Outcome