[Spontaneous resolution of pericardial cyst: a complex case report]

Area of Science:

• Cardiology
• Radiology
• Thoracic Surgery

Background:

• Pericardial cysts are uncommon mediastinal masses, typically benign and found incidentally.
• They occur with an incidence of 1 in 100,000, frequently located at the right cardiophrenic angle.

Observation:

• This case report details an incidentally discovered pericardial cyst.
• The cyst was no longer detectable on cardiac magnetic resonance imaging seven years post-initial diagnosis.

Findings:

• Spontaneous resolution of pericardial cysts is exceedingly rare.
• This case demonstrates a rare instance of a pericardial cyst resolving over a seven-year period.

Implications:

• Asymptomatic pericardial cysts warrant regular follow-up due to potential growth and complications.
• The possibility of spontaneous resolution, though rare, should be considered in long-term monitoring.