CTICasesEndobronchial Metastasis from Palatal Adenoid Cystic Carcinoma
Imaging findings
Chest radiograph demonstrates a new sub-nodular opacity in the right suprahilar region. Chest CT confirms an endobronchial mass in the right upper lobe bronchus extending into the anterior and posterior segmental airways, causing post-obstructive mucus plugging. Multiple smaller pulmonary parenchymal metastases are also present.
Key takeaways
Adenoid cystic carcinoma of the head and neck (such as the palate) is known for its indolent course but high propensity for hematogenous metastasis, including endobronchial metastases. In oncology patients with a history of salivary gland or palatal malignancies, new focal airway opacities should raise suspicion for endobronchial disease, which can be confirmed and palliated via bronchoscopy.
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