Yellow Urticaria in a patient with gallbladder stones: A case report and review of literature

Yellow urticaria is a rare type of urticaria and the exact etiology behind it is still unclear. We report a case of 53-years-old medically free male with pruritic yellow to orange wheals over his trunk and extremities after receiving his first dose of COVID-19 Vaccine (Pfizer-BioNTech) with no evidence of angioedema or anaphylaxis. All the reported cases of yellow urticaria almost share the same cause which is hyperbilirubinemia due to wide spectrum of liver diseases. In conclusion, it is crucial for clinicians to be familiar with this presentation of yellow urticaria and correlate it with the patient history related to liver disease , as this urticaria often signify the presence of various liver disorders.