[Tricuspid valve lesion due to penetrating chest trauma]

Tricuspid valve lesions caused by penetrating chest trauma are rare and often underdiagnosed. The objective of this report is to describe a case of severe tricuspid insufficiency secondary to a knifing incident with an insidious evolution, diagnosed 19 years after the incident. The case emphasizes the importance of adequate follow-up of patients that are victims of penetrating chest trauma for a long period after the injury, to detect possible late complications of the trauma.