Logo American Journal of Case Reports

Call: 1.631.629.4328
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo American Journal of Case Reports Logo American Journal of Case Reports Logo American Journal of Case Reports

14 March 2017 : Case report  USA

Metastatic Colonic Adenocarcinoma to the Extrahepatic Common Bile Duct: The Critical Role of the Pathologist and Immunohistochemistry in Guiding Patient Care Decisions

Unusual clinical course, Challenging differential diagnosis, Diagnostic / therapeutic accidents, Educational Purpose (only if useful for a systematic review or synthesis)

Kurt J. Knowles1ABCDEF*, Shoujun Chen1ABEF, Gillermo A. Herrera1ABCDEF

DOI: 10.12659/AJCR.901501

Am J Case Rep 2017; 18:263-266

Abstract

BACKGROUND: Adenocarcinoma of the colon frequently invades adjacent organs, spreads intraperitoneal, and metastasizes to intestinal lymph nodes, lungs, and the liver. Metastasis solely to the extrahepatic bile duct is extremely rare and has only been previously reported on 15 occasions. The accurate determination that an extrahepatic common bile duct lesion is of colonic origin has critical therapeutic implications.

CASE REPORT: The patient was a 50-year-old male with a history of colon cancer S/P surgical resection in September 2014. At that time, the tumor extended to the serosal margin, and was staged as pT4a N0 MX stage II. In April of 2016, the patientwas admitted to our facility and an ERCP was performed. A biopsy was performed during the ERCP followed by sphincterotomy and metal stent placement. The surgical pathology revealed an adenocarcinoma with surrounding benign glandular structures. The surrounding benign glands served as an appropriate control when compared to the malignant glands. The benign glands were positive for CK-7 and the malignant glands were negative for CK-7. The malignant glands were also positive for CK-20 and CDX-2, and the benign glands were negative for CK-20 and CDX-2. This profile was consistent with an adenocarcinoma metastasis from colon primary tumor.

CONCLUSIONS: This case superbly illustrates the critical role of the pathologist, and their knowledge and understanding of immunohistochemistry, in arriving at the correct diagnosis and in assisting surgeons and oncologists in guiding the care, management, and appropriate therapeutic decisions regarding patients. In patients with a history of colorectal carcinoma (CRC), immunohistochemistry is required to arrive at the correct diagnosis as treatment options can be very different based on diagnosis.

Keywords: Cholangiocarcinoma, Colorectal Neoplasms, Liver Neoplasms

0 Comments

SARS-CoV-2/COVID-19

22 September 2022 : Case report  USA

Rare Case of Persistently Depressed T Lymphocyte Subsets After SARS-CoV-2 Infection

Am J Case Rep In Press; DOI: 10.12659/AJCR.937760  

22 September 2022 : Case report  Poland

Central Retinal Vein Occlusion After Discontinuation of Rivaroxaban Therapy in a Young Patient with COVID-1...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937739  

19 September 2022 : Case report  Spain

Inhaled Nitric Oxide in Acute Severe Pulmonary Hypertension and Severe Acute Respiratory Distress Syndrome ...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937147  

14 September 2022 : Case report  Japan

Case Report: A 29-Year-Old Pregnant Woman at 24 Weeks of Gestation Presenting with Laryngotracheitis and CO...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937834  

In Press

23 Sep 2022 : Case report  Antigua and Barbuda

Spontaneous Oropharyngeal Hemorrhage Complicated by Cirrhosis, Resulting in Hemorrhagic Shock

Am J Case Rep In Press; DOI: 10.12659/AJCR.937582  

22 Sep 2022 : Case report  Japan

Unexplained Abdominal Pain Caused by Fracture of the Thoracic Vertebra

Am J Case Rep In Press; DOI: 10.12659/AJCR.937740  

22 Sep 2022 : Case report  USA

Rare Case of Persistently Depressed T Lymphocyte Subsets After SARS-CoV-2 Infection

Am J Case Rep In Press; DOI: 10.12659/AJCR.937760  

22 Sep 2022 : Case report  Poland

Central Retinal Vein Occlusion After Discontinuation of Rivaroxaban Therapy in a Young Patient with COVID-1...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937739  

Most Viewed Current Articles

13 Jul 2022 : Case report  USA

Whistling Scrotum: An Unusual Presentation of Pneumomediastinum in the Setting of an Open Scrotal Wound

DOI :10.12659/AJCR.936441

Am J Case Rep 2022; 23:e936441

23 Feb 2022 : Case report  USA

Penile Necrosis Associated with Local Intravenous Injection of Cocaine

DOI :10.12659/AJCR.935250

Am J Case Rep 2022; 23:e935250

06 Dec 2021 : Case report  Brazil

Lipedema Can Be Treated Non-Surgically: A Report of 5 Cases

DOI :10.12659/AJCR.934406

Am J Case Rep 2021; 22:e934406

17 Feb 2022 : Case report  Oman

Myocarditis, Pulmonary Hemorrhage, and Extensive Myositis with Rhabdomyolysis 12 Days After First Dose of P...

DOI :10.12659/AJCR.934399

Am J Case Rep 2022; 23:e934399

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923