Sarcomatoid carcinoma is a rare malignant tumor that has both malignant epithelial and mesenchymal components. We describe a sarcomatoid carcinoma arising in the right renal pelvis of a 68-year-old man. The dominant component of the tumor was osteosarcomatous, but there were also focal carcinomatous areas. The sarcomatous tumor cells produced abundant osteoid matrix surrounded by osteoblastic c...

Malignant fibrous histiocytomas (MFHs), newly named as ‘undifferentiated pleomorphic sarcomas’ in 2002 by the World Health Organization, generally show an ambiguous origin. They have been described to fibroblastic or histiocytic in origin, while storiform-pleomorphic variants share a similar morphologic pattern with other sarcomas. For this reason additional diagnostic methods including immunol...

Phenanthriplatin, that is, (SP-4-3)-diamminechlorido(phenanthridine)platinum(II) nitrate, an effective antitumor cationic Pt(II) complex, was loaded on negatively charged dextran sulfate (DS) as a model vector for drug delivery via electrostatic interactions. The free complex and the corresponding conjugate with DS were tested on two standard human tumor cell lines, namely, ovarian A2780 and co...

Primary gallbladder carcinoma is a malignant neoplasm with an incidence of 1.2 cases per 100 000 people each year. Its occurrence increases with age, particularly in women. It is the fifth most common cancer of the gastrointestinal tract, and the most common malignancy in the biliary tract. Adenocarcinoma is the most common type of gallbladder neoplasm whereas sarcomatoid carcinoma is rare with...

Sarcomatoid malignant pleural mesothelioma (SMPM) is a rare tumor with poor response to treatment and a dismal prognosis. Distant metastases are not uncommon and usually appear at the late stages of the disease. However, cerebral metastases have rarely been documented. We herein report a case of a giant sarcomatoid carcinoma of the pleura in a 41-year-old male patient with no history of exposur...

Sarcomatoid carcinoma is a rare, aggressive tumor, with a special predilection for the upper bronchodigestive tract and oral cavity (1-3), but it may occur in other locations such as the uterus and breast. This tumor has a mixture of carcinoma and sarcoma containing differentiated mesenchymal elements (1-3). Orbital apex syndrome is a rare complex characterized by proptosis and paralysis of ext...

Haemangiomas are benign skin lesions that usually regress spontaneously, but radiotherapy has previously been used to assist the regression and healing of the lesions. Radium and X-rays were used as a treatment for benign skin lesions such as haemangioma until the carcinogenic effect of ionising radiation in humans was described. We report a patient diagnosed with a sarcomatoid carcinoma. Her p...

Sarcomatoid renal cell carcinoma (sRCC) is an aggressive variant of renal cell carcinoma (RCC) that has a significantly lower overall survival. Even after prompt surgical extirpation, this histologic variant progresses rapidly. We present a case of an early recurrence and rapid progression of sRCC despite successful radical resection.