No abstract

CT is an efficient imaging method for diagnosis, guiding the drainage procedures and monitoring response to percutaneous drainage of emphysematous pyelonephritis. Antibiotic therapy combined with CT guided percutaneous drainage of emphysematous pyelonephritis is an acceptable alternative to antibiotic therapy with surgical intervention.

No abstract

Sixteen young adults with neglected femoral neck fractures were treated from 1974 to 1981. The ages ranged from 16 to 43 years. The periods of delay after fracture were three months to two years. Most of the patients were initially treated by a "Chinese bone setter" with subsequent development of leg shortening, upward displacement of the distal fragment, and a variable degree of absorption of the femoral neck or head. Treatment included skeletal traction followed by open or closed reduction, internal fixation, or angulation osteotomy with or without bone graft. Two to eight years later, there were no cases of nonunion. Four hips developed avascular necrosis with one requiring still further surgical treatment. Thirteen patients (81%) had good to excellent results. Preservation of the patients' own hip joints was worthwhile. A defeatist attitude toward the "unsolved" fracture should be qualified.Von Langebe~k?~ in 1878, reported the first attempt at internal fixation of a fractured neck of the femur; however, sepsis resulted in his failure. His method was not accepted by the surgical profession at that time, and the conservative approach of Whitman33 was the method of choice until 193 1, when Smith-Peterson and his co-workersZ9 introduced the triflanged nail. Early anatomic reduction, impaction of the fracture fragments, and rigid internal fixation have been used to handle fresh femoral neck fractures with great im-

No abstract

Classical renal angiomyolipoma (AML) is a common tumor that, in most cases, follows a benign course and has clearly defined radiologic and histological characteristics. However, rare cases of clinically aggressive or malignant AML, the epithelioid variant of AML (EAML), have been reported. Here, we review the five cases of EAML diagnosed since 2000 at our institution to highlight the spectrum of clinical, radiological and histological characteristics. In all cases, renal lesions seen on computed tomography (CT) were considered as suspicious for renal cell carcinoma (RCC) without tumor extension or metastasis. One of the two patients with definitive tuberous sclerosis complex had a small conventional AML with fat content in the other kidney. Histologically, these tumors can resemble sarcomatoid RCC or high grade RCC. The final diagnosis is established by the presence of perivascular epithelioid cells and immunohistochemistry markers. There was no evidence of local recurrence or metastatic disease found by sonography, CT and magnetic resonance imaging during the follow-up period. EAMLs are capable of aggressive or malignant clinical behavior. Approximately one third of the reported EAMLs show advanced disease; therefore, we recommend that it is important to treat and closely follow-up such cases, similar to that for RCC, because of its malignant potential.

Intravesical instillation of epirubicin or mitomycin C appears to be well tolerated and effective for preventing bladder recurrence and prolonging time to first bladder recurrence. Patients should receive prophylactic intravesical chemotherapy after nephroureterectomy.

The results of the current study found that the gender incidence and ratio of renal pelvis TCC to all renal carcinomas are different in Taiwan compared with data presented in the majority of other studies.