Objective To evaluate the clinical value of CT scanning in preoperative location diagnosis of cryptorchidism.Methods 21 patients with eryprorchidism aged frorri 1 to 50 had neither signs nor ultrasonic indication and got CT scanning before operation,all of them were confirmed by operation.Results 2 of 21 were bilateral and 19 were unilateral after operation.CT scanning indicated all of them correctly.Conclusion CT scanning has fast speed,higher resolution and less subjective than ultrasonogmphy.CT scanning can show structure of testis and peripheral tissue better especially with contrast agent.CT scanning in preoperative location diagnosis of cryptorchidism has high accuracy.

Objective To study the CT symptom and diagnosis value of pancreatic trauma. Methods Retro-spectively analyzed the CT and clinical data of 11 pancreatic trauma. Results Bleeding,edema in pancreas parenehy-ma, uprightness low density lines appear along long axis of pancreas when enhancement were performed ,which werethe direct symptom of pancreatic trauma and rupture; hematoeele, hydrops around pancreas, front fascia of left kidney broaden, pancreatic pseudoeyst pneumatosis in bile duet, which were the indirect symptom of pancreatic trauma. Con-clusion CT is the first choice in the diagnosis of pancreatic trauma. Master the CT symptom and make right diag-nosis, which were important to clinical operation.