Hereditary Congenital Methemoglobinemia Diagnosed at the Age of 79 Years: A Case Report.

ABSTRACT: Background: Cardiopulmonary disorders are the most common cause of central cyanosis, and methemoglobinemia is often overlooked in the differential diagnosis of patients with central cyanosis. In most cases, methemoglobinemia is acquired and hereditary congenital methemoglobinemia is rare. Only a few case reports of congenital methemoglobinemia can be found in PubMed. To date, only four cases of congenital methemoglobinemia diagnosed after the age of 50 years have been reported. Case Presentation: A 79-year-old Japanese woman presented at our hospital with the chief complaints of dyspnea and cyanosis. She exhibited cyanosis of the lips and extremities, and her SpO₂ was 80%, with oxygen administration at 5 L/min. Blood gas analysis revealed a PaO₂ of 325.4

SUBMITTER: Nakata M 

PROVIDER: S-EPMC10058039 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature