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In a 13-year-old boy with a tracheostomy tube placed due to laryngeal papillomatosis, chest radiograph shows multiple nodular processes (arrows), some of which are cavitating, caused by parenchymal dissemination of the papillomatosis.
(From Diagnostic imaging of the respiratory tract. In Chernick V, Boat TF, Wilmott RW, Bush A [eds]: Kendig's Disorders of the Respiratory Tract. Philadelphia, WB Saunders, 2006.)
