PMC9684059_01
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).
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fig1-11795476221138648
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).
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fig2-11795476221138648
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).
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fig3-11795476221138648
Angiography showed normal coronary arteries, and neither obvious lymphocytic infiltration of the myocardium nor cardiomyocyte damage were observed on myocardial biopsy specimens (Figure 3).