[CT findings of nasal non-Hodgkin's lymphomas associated with prognosis]

X-ray CT images of the head obtained from thirteen patients (9 men and 4 women) among 33 patients (19 men and 14 women) with nasal non-Hodgkin's lymphoma (NHL) who had been seen at Kitasato University Hospital during the period from April 1975 to March 1995 were retrospectively reviewed to search for useful prognostic image factors for nasal NHL. Extracavitary subcutaneous tumor extension into the nasal wing or cheek, and tumor penetration through the nasal septum revealed on X-ray CT images seemed to be likely indicators of a poor prognosis for patients with nasal NHL.