MRI features of pancreatitis, panniculitis, polyarthritis and the fourth p: The “polka dot sign.” A case series and imaging review

Key Points

• This case series highlights the polka dot sign as a unique MRI feature relevant to several conditions.
• The polka dot sign was observed in MRI scans of 5 patients with different combinations of pancreatitis and panniculitis.
• Imaging analysis captured distinct characteristics of polyarthritis alongside the polka dot sign on MRI scans.
• Highlights the importance of recognizing specific MRI features in diagnosing complex conditions.