We describe a unique case of a teenager with past medical history of anxiety. dysmenorrhea and one year of recurrent symptomatic palpitations who was found to have an exceptionally large mediastinal teratoma which was compressing the right atrium. after evaluation for recurrent symptomatic supraventricular tachycardia. Our case adds new perspectives on the evaluation of what may seem ... https://www.ealisboa.com/super-pick-Neon-Green-Kenya-Tree-Coral-save-extra/