title: Dual Tracer PET Imaging (68Ga-DOTATATE and 18F-FDG) Features in Pulmonary Carcinoid: Correlation with Tumor Proliferation Index.
abstract: Pulmonary carcinoid tumors are rare group of lung neoplasms representing 1% of all the lung tumors. The typical bronchial carcinoids showed higher and more selective uptake of68Ga-DOTATATE than of18F-FDG on PET-CT. The Ki-67(MIB-1), a tumor proliferation index is a prognostic marker in neuroendocrine tumors for estimating tumor progression. Atypical carcinoids have higher Ki-67 index and have an increased propensity to metastasize as compared to typical ones.68Ga-DOTATATE PET imaging along with Ki-67 can be correlated for better management of patients with neuroendocrine tumors. We describe the dual tracer imaging features in a patient of pulmonary carcinoid with avid68Ga-DOTATATE and minimal18FDG (18Flurodeoxyglucose) uptake diagnosed on the basis of imaging and bronchoscopic biopsy and its correlation with tumor proliferation index.
authors.affiliation: Department of Pulmonary Medicine, T. N. Medical College, B. Y. L. Nair Hospital, Mumbai, India.
authors.forename: Dhiraj
authors.initials: D
authors.lastname: Bhatkar
authors.affiliation: Department of Pulmonary Medicine, T. N. Medical College, B. Y. L. Nair Hospital, Mumbai, India.
authors.forename: Ketaki
authors.initials: K
authors.lastname: Utpat
authors.affiliation: Radiation Medicine Centre, BARC, Tata Memorial Centre Annexe, Parel, Mumbai, India.
authors.forename: Sandip
authors.initials: S
authors.lastname: Basu
authors.affiliation: Department of Pulmonary Medicine, T. N. Medical College, B. Y. L. Nair Hospital, Mumbai, India.
authors.forename: Jyotsna M
authors.initials: JM
authors.lastname: Joshi
keywords: 68Ga-DOTATATE; Carcinoid; Ki-67