Suspected osseous recurrence visualized on a (68)Ga-DOTATATE PET/CT scan during the follow-up of a patient with a resected pulmonary carcinoid tumour.

摘要

Bronchial carcinoid tumours are a rare group of pulmonary neoplasms that are characterized by neuroendocrine differentiation and relatively indolent clinical behaviour. Bronchial carcinoids account for approximately 1 to 2% of lung malignancies in adults and roughly 20 to 30% of carcinoid tumours (11). These tumours are the most common primary lung neoplasm of children, typically presenting in late adolescence. The annual incidence rates of bronchial carcinoid among men and women were 0.2 and 1.3 per 100000 population (12). Most carcinoids can be tentatively identified on routine light microscopy. Recently, immunohistochemical identification of secreted and cytoplasmic products such as synaptophysin, neuron-specific enolase (NSE) and chromogranin A (CgA) has replaced silver staining to confirm neuroendocrine differentiation (8).