The von Meyenburg Complexes

Background: Biliary duct hamartomas (the von Meyenburg complexes) is a rare malformation of the hepatic ductal plates usually discovered incidentally during surgery or autopsy.
Case presentation: We present the case of a 66 year-old man who presented symptoms suggestive of a biliary colic. Following an open surgical biopsy from the liver, the sample obtained underwent classic Hematoxylin-Eosin, as well as histochemical and immunohistochemical stains, which allowed establishing the diagnosis of biliary duct hamartoma, using macro- and microscopical criteria (well-defined, subcapsular hepatic lesions and no nuclear atypia).
Conclusion: The recognition of this particular lesion is important due to its macroscopic and microscopic resemblance to multiple liver metastases and other types of multicentric subcapsular hepatic lesions. The mandatory technique in order to diagnose this rare type of hepato-biliary lesion remains the histopathological examination.

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