Correlation between 18 F-FDG PET/CT semiquantitative parameters and Ki-67 expression in pulmonary mucosa-associated lymphoid tissue lymphoma.
J Med Imaging Radiat Oncol
; 65(2): 188-194, 2021 Apr.
Article
em En
| MEDLINE
| ID: mdl-33538120
ABSTRACT
INTRODUCTION:
This study aims to investigate the correlation between 18 F-Fluoro-d-glucose positron emission tomography/computed tomography (18 F-FDG PET/CT) semiquantitative parameters and Ki-67 expression in pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma.METHODS:
Twenty-eight patients with histologically confirmed pulmonary MALT lymphoma in 29 lesions who underwent 18 F-FDG PET/CT were retrospectively analysed. PET/CT images were analysed visually and semiquantitatively by measuring maximum standardized uptake value (SUVmax ), mean standardized uptake value (SUVmean ), metabolic tumour volume (MTV) and total lesion glycolysis (TLG). The correlation between morphological pattern, tumour size, Ki-67 expression and PET/CT semiquantitative parameters were also analysed.RESULTS:
There were 16 male patients (57.1%) and 12 female patients (42.9%), and the mean age was 57.6 ± 9.7 years (range 43-73 years). Twenty-nine pulmonary lesions were identified in 28 patients 12 (41.4%) presenting as consolidation, 9 (31.0%) as nodules, 5 (17.2%) as masses and 3 (10.3%) as ground glass opacities (GGOs). All of the 29 lesions were 18 F-FDG avid. SUVmax of the lesions was 4.4 ± 3.0 (range 1.1-15.3), SUVmean was 2.8 ± 1.9 (range 0.8-10.3), MTV was 15.9 ± 17.6 (range 0.9-82.1) and TLG was 48.7 ± 56.6 (range 0.9-205.6). The PET/CT semiquantitative parameters were not correlated with morphological pattern of pulmonary MALT lymphoma, which were correlated significantly with tumour size and Ki-67 expression.CONCLUSION:
Pulmonary MALT lymphomas are 18 F-FDG avid, and 18 F-FDG PET/CT semiquantitative parameters (SUVmax , SUVmean , MTV and TLG) are significantly correlated with tumour size and Ki-67 expression. 18 F-FDG PET/CT plays a potential role in identifying lung MALT lymphomas with higher proliferation and more aggressive behaviour in clinical practice.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Linfoma de Zona Marginal Tipo Células B
/
Antígeno Ki-67
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Med Imaging Radiat Oncol
Ano de publicação:
2021
Tipo de documento:
Article