Journal List > Korean J Gastroenterol > v.61(1) > 1007110

Cha, Kim, Kim, Ryu, Moon, and Lee: Metastatic Common Bile Duct Cancer from Pulmonary Adenocarcinoma Presenting as Obstructive Jaundice

Abstract

We report an extremely rare case of metastatic common bile duct cancer from pulmonary adenocarcinoma presenting as obstructive jaundice. The patient was a 76-year-old male, who presented with generalized weakness and right upper quadrant pain. Plain chest X-ray noted multiple small nodules in both lung fields. Abdominal computed tomography scan showed a stricture of the mid common bile duct along with ductal wall enhancement. Endoscopic retrograde cholangiography revealed a concentric, abrupt narrowing of the mid-common bile duct suggestive of primary bile duct cancer. However, pathology comfirmed metastatic common bile duct cancer arising from pulmonary adenocarcinoma with immunohistochemical study with thyroid transcriptional factor-1 (TTF-1).

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Fig. 1.
Plain chest X-ray. Multiple small nodules were found in both lung parenchyma.
kjg-61-50f1.tif
Fig. 2.
Abdominal CT scan. (A) Ductal wall enhancement (arrow) was seen on axial image. (B) Note the stricture at the mid-common bile duct along with shouldering and ductal wall enhancement (arrow) on coronal image.
kjg-61-50f2.tif
Fig. 3.
Imaging and histologic findings of the common bile duct. (A) Endoscopic retrograde cholangiography revealed a concentric, abrupt narrowing of the mid-common bile duct. (B) Biopsy exhibited clusters of malignant columnar cells with prominent nucleoli and intracytoplasmic mucin vacuoles (H&E, ×400). (C) Adenocarcinoma cells demonstrated strong nuclear immunoreactivity for thyroid transcriptional factor-1 (×400).
kjg-61-50f3.tif
Fig. 4.
Bronchoscopic findings and bronchial biopsy specimen. (A) Bronchoscopy showed hyperemic mucosal change, finding suspicious of cancer cell infiltration. (B) Biopsy revealed haphazardly infiltrating nests of adenocarcinoma cells with intracytoplasmic mucin production (H&E,×200). (C) Adenocarcinoma cells were also reactive for thyroid transcriptional factor-1 (×400).
kjg-61-50f4.tif
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You Sun Kim
https://orcid.org/http://orcid.org/0000-0002-5156-3458

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