Starry sky appearance (MRI)

Starry sky

appearance (MRI) • Von Meyenburg complexes - Ganzer Fall bei Radiopaedia

Knipe, H. Von Meyenburg complexes. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-68422 • CC by-nc-sa 3.0 (modified)

Starry sky

appearance (MRI) • Biliary hamartomas - Ganzer Fall bei Radiopaedia

Radswiki, T. Biliary hamartomas. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-11235 • CC by-nc-sa 3.0 (modified)

Starry sky

appearance (MRI) • Von Meyenburg complex - Ganzer Fall bei Radiopaedia

loganathan, K. Von Meyenburg complex. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-38428 • CC by-nc-sa 3.0 (modified)

Starry sky

appearance (MRI) • Multiple biliary hamartomas - Ganzer Fall bei Radiopaedia

Alhelali, A. Multiple biliary hamartomas. Case study, Radiopaedia.org. (accessed on 02 Nov 2022) https://doi.org/10.53347/rID-49476 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

Starry sky appearance on MRI refers to the appearance of small innumerable T2 hyperintense bile duct hamartomas and biliary microhamartomas, scattered throughout the T2 hypointense hepatic parenchyma, which resembles a “starry sky”. The high T2 signal lesions represent Von Meyenburg complexes seen in multiple biliary hamartomas. It is best demonstrated on a 3D-T2 sequence on magnetic resonance cholangiopancreatography (MRCP).

Terminology

This MRI sign should not be confused with the similarly named starry sky appearance (ultrasound) seen in a variety of liver pathologies and the milky way sign (MRI) seen in progressive multifocal leukoencephalopathy (PML).