Chondrosarcoma (CS) is a malignant neoplasm that results in abnormal bone and cartilage growth. Although CS is rare, it is the second most common primary bone malignancy. Mesenchymal chondrosarcoma (MC) is a rare histological variant of CS that accounts for only about 1% of all CS and has high predilection for the head and neck region. It is usually seen in younger age group compared to convent...

Primary hepatic angiosarcoma (PHA) is an exceedingly rare and aggressive neoplasm of mesenchymal origin. PHA makes a very small portion primary liver tumors conveys poor prognosis. Symptomatology can be vague often mimics hepatocellular carcinoma upon presentation. Diagnosis requires careful immunohistopathologic confirmation. We present case in patient with abdominal pain suspected underlying ...

Prolonged inflammation or irritation due to renal calculi can induce glandular metaplasia of the urothelium and even malignant neoplasm. Primary adenocarcinoma in pelvicalyceal system is a rare tumor in such patients. Here, a case of carcinoembryonic antigen (CEA) positive primary tubulovillous adenocarcinoma in pelvicalyceal system is reported. A 57-year-old male with right abdominal pain and ...

background the collection of information concerning neoplasm is of major interest, but medical data are only meaningful once they are classified according to a valid and reliable classification. so the purpose of this study was to survey current neoplasm classification systems. material and methods this research study is descriptive and useable. information’s collected by library studies and by...

PURPOSE To study the prevalence of multiple neoplasms in patients affected by uveal melanoma in Spain and to relate these with survival. METHOD We carried out a longitudinal prospective study of the prevalence of multiple neoplasms in patients diagnosed to have a uveal melanoma during the years 1984-2005. The data has been analysed for the following variables: age, sex, date of diagnosis, aff...

primary retroperitoneal mucinous tumor (prmt) of low malignant potential (border line) is an uncommon neoplasm with fewer than 50 reported cases. uncertain diagnostic imaging results make diagnosis of its origin difficult, preoperatively. later treatment planning and prognosis would be affected by exact diagnosis of the tumor origin. this study presents a case of persian woman with diagnostic, ...

Rhabdomyosarcoma (RMS) is a malignant skeletal muscle neoplasm. RMS can occur anywhere in the body and is the most common childhood sarcoma (1). Pediatric RMS is an aggressive neoplasm with deregulated cell cycle checkpoints, high genome instability, and oncongene ampli ication such as MYC family members (2). However, RMS rarely occurs in adults. Moreover, sarcomas of the kidney are rare soft t...