[Radiologic diagnosis and therapy of the viscerocranial extramedullary plasmocytoma].

A report is given about ten patients with an extramedullary plasmocytoma situated in the head/neck region. The diagnostic possibilities, the spontaneous development and the effect of radiotherapy with or without surgical treatment are evaluated. Ablation and subsequent irradiation with a focal dose of at least 50 Gy offer the best changes to achieve a recovery without recurrences. In case of osseous destruction, especially if the primary tumor is localized in the maxillary sinuses, it is very difficult to attain a permanent remission. If only soft tissues, are affected, a combined surgical and radiologic treatment is possible even in case of an affection of regional lymph nodes.