Tumors-to-tumor metastasis is an uncommon occurrence and can be a source of great diagnostic difficulty, especially when the donor tumor is undiagnosed. Here we report a case of a kidney resected for a primary neoplasm (oncocytoma) that harbored metastases from a clinically undiagnosed prostatic adenocarcinoma. The presence of the poorly differentiated metastasis within an otherwise typical onc...

Kidney tissue is particularly susceptible to reactive oxygen species attack which leads to development of cancer. During oxidative stress, membrane lipids and proteins are major targets of reactive oxygen species (ROS). This work is focused on changes of phospholipids, proteins content and electric charge that occur in cell membranes of kidney cancer of pT3 stage, grade G3 and with metastasis. ...

Renal tumor metastasis from thyroid follicular carcinoma is very rare. Here, we present a 64-year-old woman with metastatic thyroid follicular carcinoma presenting as a primary renal tumor. The renal tumor was removed and revealed the origin of thyroid follicular carcinoma. Six months after the treatment of renal tumor, the patient was readmitted for the enlarged thyroid gland. The follicular c...

Renal cell carcinoma (RCC) is the most common type of kidney malignancy. The pancreas is an infrequent site of metastasis in relation to any type of malignancy. However, RCC is one of the tumor types that most frequently metastasize to the pancreas. In this study, we report our experiences with two patients who underwent pancreatic resection for metastatic RCC tumors; of these two patients, one...

Mucinous tubular and spindle cell carcinoma (MTSCC) is rare in renal cell carcinoma (RCC) and usually demonstrates a low nuclear grade and a better prognosis compared with other RCCs. The authors present a case report of MTSCC containing an area of Fuhrman nuclear grade 3, in addition to an area with a micropapillary pattern. An 82-year-old man consulted a hospital due to macrohematuria, and a ...

Received March 2008 Accepted September 2008 INTRODUCTION Angiosarcoma is a rare high-grade malignant tumor accounting for less than 2% of the soft tissue sarcomas.(1) They originate from the endothelium of the blood and lymphatic vessels and can be primary or metastatic, and localized or multicentric. Most angiosarcomas develop in the skin or soft tissue, and others, in the breast, liver, and b...

Abstract A 51-year-old man was diagnosed with renal cell carcinoma (RCC) of the left kidney seven years ago. The tumour staged as T2N0M0 and patient underwent an uncomplicated open radical nephrectomy. RCC classified clear he kept on biannual surveillance thereafter. Six after nephrectomy, had reported a 5-month history worsening pain globally restricted movement in their right shoulder. palpab...

OBJECTIVE To evaluate the risk factors and prognosis of surgery for spinal metastasis. METHODS A retrospective analysis was performed in 63 patients with spinal metastasis who underwent surgical treatment between June 1992 and June 2002. Forty-one patients underwent anterior en-bloc or partial resection, decompression and reconstruction with internal fixation of the spine. Laminectomy and dec...

A 58-year-old male presented to our division complaining of mild lumbago and transient gross hematuria during the recent 1 month. Physical examination revealed Grade 2 hypertension and low-grade fever. Laboratory tests showed mild anemia and slightly elevated serum C-reactive protein level (6.55 mg/dl). Contrast-enhanced computed tomography depicted a heterogeneously enhanced tumor in the left ...

The development of resistance and progressive disease after treatment with angiogenesis inhibitors is becoming a controversial issue. We investigated the experimental conditions that cause multireceptor tyrosine kinase inhibitors (RTKI) to augmentmetastasis andwhether opportune combinationswith chemotherapy could counteract this effect. The renal Renca-luc tumor was transplanted orthotopically ...