Abstract
BACKGROUND: Coronavirus disease 2019 is an infectious disease with many presentations, and many of its effects on the human body are still unknown. Pheochromocytoma is a neuroendocrine tumor that may occur sporadically or be a manifestation of a hereditary disease line multiple endocrine neoplasia type 2. CASE PRESENTATION: In this study, we report a case of an Iranian patient infected with coronavirus disease 2019, causing unusual presentations of pheochromocytoma, including myocarditis and cerebrovascular involvement. CONCLUSIONS: We discovered a case of pheochromocytoma as an unusual presentation of COVID-19. In further investigations we also discovered thyroid medullary carcinoma and at the end MEN 2 syndrome was diagnosed. After proper treatment many symptoms were eliminated.