case_images: PMC9684059_01
case_images: Clinical course. Myocardial enzymes (TnT, CK-MB) and inflammatory markers
  (WBC, CRP) were transiently elevated. These findings, including pericardial
  effusion, improved over the clinical course. BNP transiently increased
  several days after these changes, and returned to the normal range at
  discharge. Colchicine was continued for 1 month after discharge and ACE-I
  for 6 months. WBC, white blood cell (cell count/muL, normal range 3300
  -8600/muL); CRP, C-reactive protein (mg/dL, normal <=0.14 mg/dL); TnT,
  high-sensitivity troponin T (ng/mL, normal <=0.1 ng/mL); BNP, B-type
  natriuretic peptide (pg/mL, normal <=18.4 pg/mL); CK-MB, creatine
  kinase-isoenzyme MB (U/L, normal <=12 U/L).
case_images: 10.1177_11795476221138648-fig1.jpg
case_images: PMC9684059_01_10.1177_11795476221138648-fig1.jpg
case_images: fig1-11795476221138648
case_images: Contrast-enhanced cardiac magnetic resonance imaging performed on day 5,
  short-axis views (A), 4-chamber views (B). Linear midmyocardial late
  gadolinium enhancement is seen in the septal and apical walls of the left
  ventricle (red arrow).
case_images: 10.1177_11795476221138648-fig2.jpg
case_images: PMC9684059_01_10.1177_11795476221138648-fig2.jpg
case_images: fig2-11795476221138648
case_images: Endomyocardial biopsy specimens show no obvious lymphocytic infiltration of
  the myocardium and no cardiomyocyte damage. (Hematoxylin and eosin staining,
  original magnification x40, The white bar indicates 200 mum).
case_images: 10.1177_11795476221138648-fig3.jpg
case_images: PMC9684059_01_10.1177_11795476221138648-fig3.jpg
case_images: fig3-11795476221138648
case_images: Angiography showed normal coronary arteries, and neither obvious lymphocytic infiltration of the myocardium nor cardiomyocyte damage were observed on myocardial biopsy specimens (Figure 3).