Scintigraphic evaluation of multifocal hemangioendothelioma of bone.

Multifocal bone involvement was seen on bone scintigraphy in a young woman being examined for a suspected bone lesion noted on pelvic radiographs. Biopsy of the third lumbar vertebral body demonstrated a vascular lesion. The tumor was resected and a bone graft was performed. The patient was followed with serial scans to assess the viability of the bone graft and course of the disease. This report analyzes the scintigraphic characteristics of this rare tumor and emphasizes the importance of bone scintigraphy in the diagnosis, treatment, and follow up of this condition.

Local recurrence after cystectomy alone for bladder carcinoma.

Although the role of preoperative irradiation in the treatment of bladder carcinoma is questioned, patterns of failure after cystectomy alone are not well documented. Local failure patterns were analyzed retrospectively in 83 patients (67 men and 16 women) treated with cystectomy without adjuvant therapy at three institutions. The follow-up period ranged from 0 to 167 months. Disease was assessed preoperatively by clinical stage and postoperatively by pathologic stage. Thirteen patients had pelvic recurrences, a 5-year actuarial failure rate of 18%. Pathologic stage was the only significant predictor of local recurrence, which ranged from 6% in patients with pT2 tumors to 51% in patients with pT3b tumors. The median time to local recurrence was 9 months (range, 3 to 62 months). Clearer documentation of failure patterns will provide a basis for evaluating survival with combined treatment methods, including preoperative radiation therapy, surgery, and chemotherapy.

Secondary malignant neoplasms in patients with bladder carcinoma.

At the University of Pennsylvania and its affiliates, 292 patients with bladder carcinoma treated with a variety of definitive regimens were observed for the incidence of secondary malignancies. The cumulative incidence at fifty-four months, including synchronous primary neoplasms, was 24 percent. Hazard function analysis reveals a relatively constant risk of new neoplasms to be approximately 1.5 percent per year over a period of forty-eight months after diagnosis.

A comparison of preoperative radiotherapy regimens for bladder carcinoma. The University of Pennsylvania experience.

Between 1976 and 1985, 155 patients from the Hospital of the University of Pennsylvania, the Philadelphia Veterans Administration Hospital, and the Fox Chase Cancer Center were divided into groups, each of which was treated with one of three preoperative radiotherapy regimens to be followed by cystectomy. Patients initially were treated with 4000 cGy during 4 weeks followed by cystectomy (16 patients). Beginning in 1978, patients received 2000 cGy in 1 week prior to surgery (70 patients). Since 1982, 40 patients were treated with 500 cGy on the day prior to surgery with postoperative radiation therapy reserved for patients with either involved margins of resection, advanced stage or high grade. A fourth group of 20 patients was either not offered or refused preoperative radiation. Nine patients received only postoperative radiation therapy. The 5-year actuarial disease-free survival for pathologic Stages B2, C, and D lesions (T3-4, N0-2), was 63% for those who had received high-dose radiation versus 21% for those that had low-dose or no radiation. Patients with advanced pathologic stage disease who had received greater than 2000 cGy had a reduced rate of local failure (11% versus 27% for those who had received less treatment). Patients with abnormal upper tracts as shown on the intravenous pyelograms (IVP) had a reduced 5-year determinate survival of 23% versus 65% for patients with normal upper tracts. This condition did not independently affect survival, but rather reflected advanced stage. Patients with abnormal creatinine levels had a decreased survival that was independent of stage. Computed tomography was found to have low sensitivity for determining extravesical extension (39%) and metastatic lymphadenopathy (12%). Patients with clinical Stage B2 and C disease (T3) that were downstaged had a 63% 5-year survival versus 18% of those that were not downstaged. The incidence of both ureteroenteral strictures and stomal complications was found to be higher in the 2000 cGy group than in those patients treated with the other regimens. The overall incidence of complications in that group was also significantly greater. We conclude that there is a continuing role for adjuvant radiotherapy in invasive bladder carcinoma to improve both pelvic control and survival. The 500 cGy radiotherapy "sandwich" regimen was equal in terms of pelvic control and survival to the other regimens and showed less overall morbidity. The 2000 cGy regimen was associated with the greatest incidence of morbidity and did not substantially improve pelvic control.

Metastatic malignant melanoma mimicking renal cell carcinoma.

Large renal parenchymal masses are a rare manifestation of metastatic malignant melanoma. We report the second and third such cases to be noted on excretory urography.