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Updated: Mar 12, 2026

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Primary Bile Duct Melanoma Causing Obstructive Jaundice.

Naga S Addepally1, Jagpal S Klair1, Keith Lai2

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|November 4, 2016
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Summary
This summary is machine-generated.

Primary malignant melanoma of the bile ducts is exceptionally rare. This case highlights a 52-year-old man with symptoms of cholestatic jaundice, ultimately diagnosed with this unusual biliary tract malignancy.

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Area of Science:

  • Gastroenterology and Hepatobiliary Medicine
  • Oncology
  • Pathology

Background:

  • Malignant melanoma typically arises from the skin or mucous membranes.
  • Metastasis of melanoma can occur in various organs, but primary biliary tract involvement is exceedingly rare.
  • Understanding rare presentations of malignant melanoma is crucial for accurate diagnosis and management.

Observation:

  • A 52-year-old male presented with persistent epigastric pain, weight loss, and symptoms indicative of cholestatic jaundice, including jaundice, nausea, vomiting, pale stools, and dark urine.
  • Imaging studies demonstrated a significant perihilar/peripancreatic mass encasing the portal vein and hepatic artery, with resultant intrahepatic biliary dilation.
  • Clinical presentation and laboratory findings suggested a hepatobiliary obstruction.

Findings:

  • Biliary brushings were crucial in the diagnostic process, revealing neoplastic cells.
  • Cytological analysis of the biliary brushings showed features strongly suggestive of malignant melanoma.
  • The findings confirmed a rare case of primary malignant melanoma of the bile ducts.

Implications:

  • This case underscores the importance of considering rare diagnoses, such as primary biliary melanoma, in patients with unexplained cholestatic jaundice and pancreatic/perihilar masses.
  • Early and accurate diagnosis through methods like biliary cytology is vital for appropriate treatment strategies.
  • Further research into the pathogenesis and optimal management of primary malignant melanoma of the bile ducts is warranted.