INTRODUCTION Alveolar soft tissue sarcoma of the tongue is a very rare and aggressive tumor which occurs in infancy with a relatively controversial histogenesis. It may mimic benign vascular neoplasms and may metastasize to the lungs, brain or bones. CASE PRESENTATION We present the case of a three-year-old Caucasian boy who was admitted to our department with a history of dysphagia and two e...

Kaposi sarcoma (KS) is a soft-tissue malignancy arising from the proliferation of spindle cells with vascular endothelial cell origin. The disease most frequently affects mucocutaneous tissues as well as the visceral aerodigestive tract. Lesions can arise anywhere along the digestive tract from the oral cavity to the perianal region. Human herpesvirus 8 (HHV-8) is a crucial factor in disease pa...

Radiation-induced sarcoma (RIS) or postirradiation sarcoma has been reported rarely as a long-term complication of radiation therapy (RT). We report 4 cases of oral sarcomas or sarcomatoid tumors with a rather short latency period after radiotherapy of the prior OSCC. Histopathological evaluation and immunohistochemical study were performed using a panel of markers including vimentin, cytokerat...

ten cases of synovial cell sarcoma are reported. the youngest patient was a 2'a years old boy with synovial cell sarcoma of the knee and the oldest one was a man with synovial cell sarcoma of the elbow.