Annals of The Japanese Respiratory Society:A case of invasive intraductal papillary mucinous adenocarcinoma of the pancreas presenting with atypical CT findings for metastatic lung tumors

Abstract

Article in Japanese

Case Report

A case of invasive intraductal papillary mucinous adenocarcinoma of the pancreas presenting with atypical CT findings for metastatic lung tumors

Yuzo Miki^a Ayaka Mukai^a Fukumichi Ishiyama^a Masaya Tsutsumi^b Hiroko Fujii^a Takashi Mamoto^a

^aDepartment of Respiratory Medicine, Osaka City General Hospital
^bDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka Metropolitan University

ABSTRACT

This case concerns an 80-year-old female. During the postoperative course of invasive intraductal papillary mucinous adenocarcinoma, computed tomography scans revealed multiple granular and nodular shadows clustered around the bronchovascular bundle in both lungs, leading to the referral of this patient. A second transbronchial biopsy revealed an expanded mucous lake in the interstitium beneath the bronchial epithelium, with TTF-1-negative atypical cells with some internal lumen formation, and a diagnosis of intrapulmonary metastasis of invasive intraductal papillary mucinous adenocarcinoma was made. This was a valuable case that presented a unique pattern of metastasis, unlike the typical chest shadows of metastatic lung tumors, including pulmonary metastasis of pancreatic cancer.

KEYWORDS

Invasive intraductal papillary mucinous carcinoma (invasive IPMC) Pulmonary metastasis (PM) Metastatic lung tumor Airway subepithelial infiltration Transbronchial biopsy (TBB)

Received 23-Aug-24 ／ Accepted 6-Jan-25

AJRS, 14(2): 68-71, 2025

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Abstract

Case Report

ABSTRACT

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