Kaposi sarcoma (KS) is a vascular neoplasm of the endothelial cells that commonly occurs in conditions that may lead to severe immunosuppression, e.g. HIV/AIDS, malignancies or use of immune suppressing medications. The development of KS has been linked to infection with an oncogenic virus, the Human Herpes Virus 8 (HHV-8), also known as KS-associated herpes virus (KSHV). Rarely KS also occurs ...

ewing’s sarcoma is a round cell malignancy of bone and soft tissue that occurs predominately in adolescents and young adults.it is an uncommon malignancy, but is recognized as the second most prevalent primary bone tumor worldwide. extraosseous ewing’s sarcoma is extremely rare and can affect the skin, soft tissues, or viscera. prognostic and therapeutic features of ewing’s extraosseous tumors ...

A case is reported with clear cell sarcoma (CCS) of the hand. Early diagnosis of clear cell sarcoma is always difficult due to its slow growing nature, benign clinical appearance, lack of pigmentation in most cases, and relatively young age of patients which make it to clinically appear as a benign soft tissue tumor. We report a case of clear cell sarcoma of hand in a 56 year old male with a no...

Host immunity to a growing antigenic solid tumor was studied with a transplanted methylcholanthrene-induced sarcoma (MCA-25) in inbred female strain 2 guinea pigs. Tumor-specific cellular immunity was evaluated in vivo by delayed cutaneous hypersensitivity reactions to a transplanta tion antigen extract of the tumor and in vitro by splenic lymphocyte-mediated cytoxicity. Animals receiving 100,0...