Genetic mouse models of soft tissue sarcoma provide critical insights into disease pathophysiology, which are oftentimes unable to be extracted from human tumor samples or xenograft models. In this study we describe a mouse model of soft tissue sarcoma mediated by adenoviral-Cre recombinase injection into Trp53fl/fl/Ptenfl/fl lox-stop-lox luciferase mice. Injection of adenovirus expressing Cre ...

Introduction: Although radiation-induced sarcomas are widely documented, most reports focus on pleomorphic malignant fibrous histiocytomas (high-grade undifferentiated pleomorphic sarcomas); few case studies involve myxofibrosarcomas. This paper reports on a grade II myxofibrosarcoma of the neck arising secondary to earlier chemotherapy and radiotherapy. Material and methods: A 61-year-old male...

UNLABELLED Soft tissue sarcomas (STS) are malignant tumors of mesenchymal origin. A substantial portion of these tumors exhibits complex karyotypes and lack characterized chromosomal aberrations. Owing to such properties, both histopathologic and molecular classification of these tumors has been a significant challenge. This study examines the protein expression of a large number of human STS, ...

Sarcomas of the larynx are rare neoplasms that constitute less than 1% of laryngeal malignancies. We describe a rare case of undifferentiated pleomorphic sarcoma of larynx of a 62-yearold male who presented with hoarseness of voice. Laryngoscope showed growth over glottic region of larynx and biopsy revealed poorly differentiated carcinoma. Patient was treated with radical radiotherapy (RT). Af...

Liposarcomas correspond to the most common histological subtype of soft tissue sarcomas. They can be subdivided into: well differentiated or atypical lipoma, undifferentiated, myxoid, round, and pleomorphic cells. Atypical lipomas are the most prevalent and usually appear as asymptomatic softened tumors. They are locally aggressive but rarely lead to distant metastases. The diagnosis of this tu...

Sarcomas are infrequent and heterogeneous tumours. They represent 1-2% of all malignant neoplasms in adults and between 4% and 10% of head and neck cancers. METHODS The research was retrospective, descriptive, and cross-sectional. RESULTS A study population of 62 patients with a mean age of 44 years was obtained; the most frequent location was the soft tissues of the neck (25.3%) and the me...

Undifferentiated pleomorphic sarcoma, known as malignant fibrous histiocytoma, is a malignant neoplasm that arises in both soft tissue and bones. In 2002, the World Health Organization declassified malignant fibrous histocytoma as a formal diagnostic entity and renamed it 'undifferentiated pleomorphic sarcoma not otherwise specified.' It most commonly occurs in the lower extremities and rarely ...

Soft tissue sarcomas (STS) are often described as asymptomatic, rapidly expanding masses, particularly in the extremities or trunk. Undifferentiated pleomorphic sarcoma (UPS), a high-grade variant of STS, ranks second most prevalent subtype United States. It predominantly affects males between their fifth and seventh decades. Its benign symptomatology, however, can lead to initial misdiagnosis ...

sarcomas account for less than 1% of all primary breast malignancies, pleomorphic sarcoma of the breast being even rarer. we present two cases of pleomorphic sarcoma of the breast in a 35-year-old and a 43-year-old female. an extensive review of the available literature with evaluation of the etiology, changing terminologies and histopathologic features of pleomorphic sarcoma of the breast are ...