Mice allografted with different sarcomas, induced by the Schmidt-Ruppin variant of Rous sarcoma virus (RSV-SR), showed a resistance against subsequent isografting of 9 different Rous sarcomas. Transplantation resistance could also be induced by Rous mouse tumor cells x-irradiated with 8000 r or with cell-free tumor extracts, containing no demonstrable virus. No transplantation resistance could ...

Soft tissue sarcoma arising as a head and neck lesion is very rare in adults. Therefore, no standardized treatment exists for this entity of disease. We retrospectively analyzed 11 cases of head and neck soft tissue sarcomas treated at Osaka University Hospital from 1991 to 2011. They were pathologically classified as follows: 5 cases with rhabdomyosarcoma, 2 cases with liposarcoma, 2 cases wit...

Background: Ewing Sarcoma Family of Tumors (ESFTs) is the second most common primary tumors of bone in childhood. The decision regarding the optimal modality for achieving local tumor control remains uncertain. The aim of this study was to report the clinical features and outcome as well as reviewing risk factors in patients. Materials and Methods: This retrospective study included 75 ESFTs pat...

BACKGROUND Granulocytic sarcoma is an extramedullary tumor of myeloblasts. The purpose of this report was to present a case of a primary laryngeal granulocytic sarcoma and review of the literature. METHODS A literature review was performed using Medline and PubMed databases to search for cases of all primary and secondary myelogenous tumors of the larynx. RESULTS A 36-year-old man presented...

An established human neurogenic sarcoma cell line pre sented a tumor-associated antigen common to various sarcoma tumors. The antigen was detected by immunofluorescent techniques with the use of the sera of patients bearing such tumors and is located mainly on the cellular surface. The tumor-specific antibody of most sera showed only membrane immunofluorescence while five sera revealed both int...

background: tumors involving the hand skeleton are rare. however, a basic knowledge of hand tumors is necessary for every clinician. this is due to the importance of distinguishing typical benign tumors from life or limb threatening malignant ones. methods: this study is a review of 99 cases of osseous hand tumors presented to the department of orthopedic surgery, imam khomeini hospital in tehr...

the majority of osseous tumors of the hand are benign. the surgeon who evaluates and treats osseous tumors of the hand has to be familiar with limb anatomy, tumor biology, various presentations of the tumors and the range of treatment possibilities and their limitations. lesions in the hand more often present earlier in their course than those at other sites, just because they are more likely t...

Ewing's sarcoma of the calcaneum is rare. Radiological features of this tumor can be misinterpreted as other benign bone tumors due to its rarity. The overall prognosis of Ewing's sarcoma of calcaneum is inferior compared to other sites of this tumor. Hence, these tumors should have extensive radiological evaluation and histological confirmation as misdiagnosis and treatment delays will have de...

Ewing's sarcoma, a malignant bone tumor of children and young adults, is a member of the small-round-blue-cell tumor family. Ewing's sarcoma family tumors (ESFTs), which include peripheral primitive neuroectodermal tumors (PNETs), are characterized by chromosomal translocations that generate fusions between the EWS gene and ETS-family transcription factors, most commonly FLI1. The EWS-FLI1 fusi...

An established human neurogenic sarcoma cell line pre sented a tumor-associated antigen common to various sarcoma tumors. The antigen was detected by immunofluorescent techniques with the use of the sera of patients bearing such tumors and is located mainly on the cellular surface. The tumor-specific antibody of most sera showed only membrane immunofluorescence while five sera revealed both int...