• Kentaro Moriichi, Shin Kashima, Yu Kobayashi, Yuya Sugiyama, Yuki Murakami, Takahiro Sasaki, Takehito Kunogi, Keitaro Takahashi, Katsuyoshi Ando, Nobuhiro Ueno, Hiroki Tanabe, Ayumi Date, Sayaka Yuzawa, and Mikihiro Fujiya.
• Division of Gastroenterology, Department of Internal Medicine, Asahikawa Medical University, Asahikawa, Japan.
• Medicine (Baltimore). 2024 Jan 5; 103 (1): e36207e36207.

RationaleBoth ulcerative colitis (UC) and sarcoidosis are chronic inflammatory diseases with unknown etiologies and are rare. However, the odds ratio in UC patients has been reported to range from 1.7 to 2.1, suggesting a potential etiology between sarcoidosis and UC. Furthermore, the underlying etiologies of UC and sarcoidosis remain unidentified. Sharing the experience of a UC patient with cardiac sarcoidosis could provide valuable insights to prevent sudden death in UC patients.Patient ConcernsA 71-year-old Japanese woman was diagnosed with UC at 58-year-old and maintained remission on mesalazine treatment. She complained of just palpitation; therefore, she consulted a cardiologist.DiagnosesThe patient received a diagnosis of cardiac sarcoidosis with complicating ulcerative colitis based on the results of N-terminal prohormone of the brain natriuretic peptide (NT-proBNP), imaging examinations, and histology.InterventionThe patient was treated with prednisolone and methotrexate. The prednisolone was then tapered, and the methotrexate dose was adjusted based on her symptoms, imaging results, and laboratory findings.OutcomeShe no longer had any symptoms, and the abnormal FDG uptake had disappeared after 2 years.LessonIn UC patients, periodic or additional (in case of symptomatic) electrocardiography and NT-proBNP are recommended for the early detection of cardiac sarcoidosis, a life-threatening complication.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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