CT Diagnosis of Non-Hodgkin's Lymphoma in Nasal Cavity and Paranasal Sinuses

Purpose To explore the CT features of non-Hodgkin's lymphoma (NHL) in nasal cavity and paranasal sinuses, and to promote the diagnostic accuracy. Materials and Methods The CT images of 11 patients with NHL in nasal cavity and paranasal sinuses confirmed by pathology were retrospectively analyzed. Results Among 11 cases of NHL, 8 cases were primary nasal cavity NHL, and 3 cases were primary paranasal sinuses NHL. The lesions of 5/8 cases located in nasal cavity arose mainly from nasal vestibule or anterior part of nasal cavity; 4 cases showed mass effects, 2 cases were infiltrative and 5 cases were mixed. Most of them (9/11) were homogeneous. The cases with mass in paranasal sinuses had obvious bone destruction and expansively bone compression; and the lesions located in the nasal cavity showedunconspicuous or little bone destruction. The adjacent structures were always involved. Conclusion The NHL in the nasal cavity and paranasal sinuses has some characteristic features on CT images; CT scan plays importantrolein diagnosis of NHL.