Purpose: The aim of the study was to present the computed tomography (CT) and fluorine 18 (18F) fluorodeoxyglucose-positron emission tomography (FDG-PET)/CT imaging findings of pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma and evaluate their roles in the follow-up of this tumor.
Methods: Computed tomography and FDG-PET/CT imaging findings of 18 cases of pathologically proven pulmonary MALT lymphoma were reviewed retrospectively.
Results: Multiple and solitary lesions were detected in 15 and 3 patients, respectively. Of those patients with multiple pulmonary lesions, 12 were bilateral, and 3 were unilateral. A total of 51 pulmonary lesions were identified in 18 patients, which included lesions with consolidation (31/51), mass and nodule (12/51), and ground-glass attenuation (8/51). 18F fluorodeoxyglucose-PET/CT imaging (n = 8) revealed increased FDG uptake in all lesions in 8 cases. At follow-up, 3 patients experienced complete remission, 10 had partial remission, and 2 remained stable.
Conclusions: Computed tomography and FDG-PET/CT images of the pulmonary MALT lymphoma usually reveal multiple, bilateral consolidations, masses, or nodules with air bronchogram and increased FDG uptake. Computed tomography and FDG-PET/CT imaging play important roles in the diagnosis and follow-up of patients with pulmonary MALT lymphoma.
From the *State Key Laboratory of Oncology in South China, Department of Radiology, Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong; and †Department of Radiology, No.1 Affiliated Hospital, Guangzhou Medical College, Guangzhou, People's Republic of China.
Received for publication March 29, 2011; accepted June 3, 2011.
Reprints: Wei-dong Zhang, MD, 651 Dongfengdong Rd, Guangzhou, Guangdong 510060, People's Republic of China (e-mail: firstname.lastname@example.org).
The authors report no conflicts of interest.