Sudden Death Due to Coronary Arteritis.

Area of Science:

• Cardiovascular Pathology
• Histopathology
• Forensic Medicine

Background:

• Sudden cardiac death (SCD) remains a significant clinical challenge, often attributed to underlying cardiovascular disease.
• Coronary artery abnormalities can present atypically, complicating diagnosis and contributing to SCD.
• Primary coronary arteritis is a rare cause of ischemic heart disease, particularly in individuals without prior medical history.

Observation:

• Autopsy revealed pathological cardiac findings, including multiple small white areas on the left myocardium.
• Coronary dissection identified a pseudotumoral fibromyxoid lesion within the anterior interventricular artery and left main coronary trunk.
• Histopathological examination demonstrated fibroinflammatory destruction of the arterial walls and focal ischemic myocardial areas.

Findings:

• The observed coronary lesions caused significant stenosis, leading to primary ischemic heart disease.
• The case illustrates a pseudotumoral presentation of coronary arteritis as the cause of SCD.
• Microscopic evidence confirmed active inflammation and wall destruction in the affected coronary arteries.

Implications:

• This case highlights the importance of considering rare inflammatory conditions in the differential diagnosis of sudden cardiac death.
• Pseudotumoral coronary arteritis should be recognized as a potential cause of myocardial ischemia and SCD.
• Further research into the etiology and early diagnosis of coronary arteritis is warranted to prevent fatal outcomes.