Peripheral Vasospasm Following Jellyfish Envenomation: A Case Report.

Jellyfish stings are a common marine injury worldwide, most often resulting in localized cutaneous manifestations. Delayed vascular complications are rarely reported. We describe the case of a 31‑year‑old previously healthy woman who developed delayed peripheral vasospasm following a jellyfish sting to the dorsum of her left hand. Several days after the initial injury, she presented with painful bluish discoloration and cold sensitivity affecting the ring and little fingers. Clinical evaluation revealed preserved distal perfusion with findings consistent with peripheral vasospasm resembling secondary Raynaud phenomenon. Management included topical glyceryl trinitrate and the initiation of a calcium‑channel blocker, resulting in significant symptomatic improvement. This case highlights an uncommon vascular sequela of jellyfish stings and emphasizes the importance of recognizing delayed vascular complications in emergency settings.