Abstract Introduction/Objective Succinate dehydrogenase (SDH)-deficient renal cell carcinoma (RCC) is rare neoplasm (<0.2% of all RCCs) caused by SDH-subunit gene mutation, usually SDHB. Patients carrying such mutations are also predisposed to other SDH-deficient neoplasms as paraganglioma, gastrointestinal stromal tumor, and pituitary adenoma. Here, we report a case incidental RCC parag...

We herein report two rare cases of bilateral renal neoplasms associated with autosomal dominant polycystic kidney disease (ADPKD). Case 1: Bilateral nephrectomy was performed on bilateral renal masses in a 58-year-old man with ADPKD. Case 2: Bilateral nephrectomy was performed on bilateral renal masses in a 32-year-old man with clinically suspected ADPKD. In case 1, angiomyolipoma (AML) and pap...

Sarcomatoid renal cell carcinoma is a rare tumour of the kidney whichaccounts for l%of renal neoplasms inadults and has been reported in ito 6.5% of renal cortical carcinomas in different studies The diagnostic morphological feature of this cancer is the intermingling of typical renal cell carcinoma with a component of sarcomatoid features, comprising of spindle cells without organisation or re...

The frequency of immunodeficiency syndromes and patients at risk for these syndromes is increasing. These patients can come to their family physicians with unusual infections and neoplasms. The following is a case of an unusual disease, primary renal lymphoma, in a patient with a history of drug abuse and chronic hepatitis. Primary renal lymphoma, a lymphomatous involvement of the kidney with n...

Intracranial tumors represent a significant health problem. The annual incidence of primary and secondary central Nervous system neoplasms ranges from 10 to 17 per 100.000 persons. The main histological types of brain tumors in adults include: high-grade (gliomas, primary cerebral lymphomas, medulloblastomas), low-grade (meningiomas, acoustic neuromas, neu‐ rofibromas) and Secondaries (common m...

Several transplantaDitmouse and rat tumors were injured in a reproducible manner by implanting a length of cotton thread in their substance. Normal tissues, including liver, spleen, kidney, and subcutaneous connective tissue, were treated similarly. At the end of 1 week tissues containing thread were removed for histologie study. Consistent ly, the inflammatory response to the foreign body with...

Langerhans cell histiocytosis involving the temporal bone region is uncommon and can resemble malignant neoplasms on imaging due to high cellularity. Although recognizing the presence of sharp margins with beveled-edges can be helpful, tissue sampling is often necessary for confirming the diagnosis. Cytology classically demonstrates kidney-bean shaped nuclei within the Langerhans cells and immu...

Peripheral blood lymphoid cell expansions with an unusual CD3+, CD4+, CD8dim+/-, CD11b+, CD57+ immunophenotype have recently been reported. They frequently have the morphology of large granular lymphocytes (LGL) and can be either monoclonal or polyclonal. Their significance is still unclear and no association with hematological neoplasms has been described. We report the case of a patient with ...

A retrospective study of medical records from 13 veterinary university hospitals and clinics yielded 73 cases of confirmed primary neoplasms of the kidney and renal pelvis. Analysis of the 34 cases of renal carcinoma revealed no evidence of familial (breed) predisposition, but an excess risk was identified in males, especially during middle life. The morphological and epidemiological features o...

BACKGROUND Oncocytomas are benign tumors of the kidney that are usually diagnosed postoperatively due to differential diagnostic problems from renal cell carcinoma. Although the latter are neoplasms that have been associated with erythrocytosis in 3.5% of cases, there are no reports in the literature about a similar occurrence in oncocytomas. CASE PRESENTATION In this case report we present a...