Proton three-demensional conformal radiosurgery of arteriovenous malformation of the brain.

The proton beam radiosurgery was performed to 65 patients with brain AVM since December, 2001 till February, 2012, in Joint Institute for Nuclear Research, Dubna, Russia. We have analyzed data for 56 patients. The follow up time varied from 24 to 109 months.

[Primary lymphomas of bones and soft tissues: comparative assessment of treatment results].

Aim: To evaluate the efficiency of intensive polychemotherapy (PCT) in adult patients having diffuse large B-cell lymphoma (DLBL) of bones and soft tissues with and without poor prognostic factors (PPF).

Subjects And Methods: Out of 58 enrolled patients, 51 were diagnosed as having DLBL. Burkitt's lymphoma (BL) was diagnosed in 6 patients.

[Proton "radiosurgery" of cerebral arteriovenous malformations].

Arteriovenous malformations (AVM) are vascular lesions arising from impaired angiogenesis at the stage of transformation of primary embryonic arteriovenous anastomoses into capillaries. Commonly AVMs manifest with spontaneous hemorrhage. Stereotactic radiosurgery is method of choice for treatment of surgically inaccessible AVMs, which are characterized by high risk of damage of adjacent critical structures.