Ciliated muconodular papillary tumor of the lung with cavitary change: A case report with 11‐year preoperative follow‐up

Abstract

Ciliated muconodular papillary tumor (CMPT) is a rare benign lung tumor characterized by ciliated columnar cells, mucous cells, and basal cells. Herein, we report a case of CMPT with 11 years of preoperative follow‐up, depicting the natural course of the tumor and changes in computed tomography (CT) findings. A 39‐year‐old man had a 5‐mm solid pulmonary nodule in the right lower lobe that had slowly grown and transformed into a thin‐walled cavitary lesion. Right lower lobe lobectomy was performed and the tumor was confirmed to be a CMPT. Although it is difficult to diagnose CMPT with CT findings alone, CMPT should be considered as a possible diagnosis when a slowly growing nodule undergoes cavitary changes.

Multiple bronchiolar adenomas/ciliated muconodular papillary tumors of the bilateral lung with tumor budding and potential malignant transformation into squamous cell carcinoma: a case report and literature review

“…Twenty-three patients were followed up by preoperative imaging for 3–144 months, and half of them showed tumor growth, with growth rates ranging from 0.29 to 5.33 mm/y and a median growth rate of 1.61 mm/y. In addition to changes in tumor size, there were cases of new ground-glass opacities (GGOs) ( 5 , 30 ), central cavities ( 5 , 31 , 41 ) or ground-glass nodules transformed into solid nodules ( 31 ).…”