Background: 3,4-methylenedioxymethamphetamine (MDMA), or "Ecstasy," is a semi-synthetic stimulant and hallucinogen widely used recreationally. While known for producing euphoria, it is associated with severe medical complications including serotonin syndrome, rhabdomyolysis, and multi-organ failure. Although MDMA is known to cause various vascular and muscular lesions, deep venous thrombosis...