Erratum to: Insights Imaging

DOI 10.1007/s13244-016-0463-z

Due to a transcription error, the teaching points were mistakenly excluded from this article.

Please find the teaching points below:

Teaching Points

Ganglion and synovial cysts are frequently associated with osteoarthritis.

A smooth, thin-walled, homogeneous cyst with a stalk connecting to the joint is typical.

Thin septa and internal debris should not be misinterpreted as worrisome findings.

Wall thickening and irregularity, hematic content and surrounding fluid suggest acute complication.