Sarcoma Adventitia

Adventitial sarcoma (s. adventitiale) is a rare form of soft tissue sarcoma, arising from the adventitial layer of blood vessels.

Synonyms: diffuse perivascular sarcoma, periadventitial sarcoma.

This tumor is characterized by infiltrative growth around blood and lymphatic vessels. Tumor cells spread along the adventitial layer of the vascular wall and also grow into the surrounding soft tissue.

Histologically, adventitial sarcoma may resemble fibrosarcoma, leiomyosarcoma, or undifferentiated sarcoma.

Diagnosis is based on histological examination of a tumor biopsy, as well as imaging (CT, MRI) to determine the extent of the process.

Treatment includes surgical removal of the tumor in combination with radiation therapy and chemotherapy. The prognosis depends on the size and extent of tumor spread, usually unfavorable due to the tendency to relapse and metastasize.

Sarcoma Adventitial Sarcoma Adventitial is a malignant neoplasm of connective tissue that develops from cells of blood vessels that are in direct contact with the skin and muscle membrane. This tumor is also known as diffuse perivaccular sarcoma or periadvential sarcoma. This type of tumor is grade "B", which means treatment must include radiotherapy