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Case Reports
. 2022 Jun;13(12):1866-1869.
doi: 10.1111/1759-7714.14451. Epub 2022 May 1.

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

Jayoung Moon  1 , Seulgi You  1 , Joo Sung Sun  1 , Kyung Joo Park  1 , Young Wha Koh  2
Affiliations
Case Reports

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

Jayoung Moon et al. Thorac Cancer. 2022 Jun.

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.

Keywords: computed tomography; follow-up studies; lung neoplasms.

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Conflict of interest statement

The authors declare no potential conflicts of interest.

Figures

FIGURE 1
FIGURE 1
Initial computed tomography (CT) image showing (a) 5‐mm size oval shape nodule in right lower lobe. (b) Chest CT image taken after 8 years depicting that the maximum diameter of the nodule increased to 7 mm. (c) Chest CT image taken after 11 years depicting that the maximum diameter of the nodule further increased to 10 mm. The internal cavity became larger and the cavitary wall became thinner
FIGURE 2
FIGURE 2
Histopathological findings of the case. (a) The tumor showing abundant mucous lakes (hematoxylin & eosin [H&E] ×25). (b) The tumor consists of ciliated columnar cells with papillary structure surrounded by extracellular mucin in high‐power examination (H&E ×400). (c) Basal cells were stained with p40. There was no definite nuclear atypia or mitosis
See this image and copyright information in PMC

References

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