Residual mass after treatment of primary cervical lymphoma: the utility of gallium 67 and MRI.

Primary cervical lymphoma is extremely rare. The clinical and imaging findings of three patients at initial presentation and at follow-up are described. A posttreatment residual mass was evident in all three patients when imaged by computed tomography (CT) or ultrasound (US). Gallium 67 scintigraphy and magnetic resonance imaging (MRI), however, demonstrated interval resolution of disease activity with residual fibrotic mass. We conclude that patients with this rare tumor may be better followed with gallium 67 scintigraphy or MRI, as these modalities more accurately reflect the disease activity of residual tumor bulk.