PMC8850625_01
Dilation of the left coronary artery showed by cardiac color Doppler ultrasound.
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F1
Cardiac color Doppler ultrasound showed: bilateral coronary artery dilatation grade I [left main trunk, 3.6 mm (Z-value + 3.2);right main trunk, 3.0 mm (Z-value + 2.6)], thickening of the ventricular wall, mild mitral regurgitation and tricuspid regurgitation, and normal range of left ventricular systolic function (Figure 1A). The child was regular follow-up after discharge (Table 2 and Figure 1). The cardiac color Doppler ultrasound showed that the left coronary artery aneurysm (grade III), the right coronary artery dilatation (grade II), and the left heart systolic function were normal (Figure 1B). The last cardiac color Doppler ultrasound were performed on June 27, 2021 and it showed that the anterior descending branch of the left coronary artery had expanded, and that the right coronary artery had returned to normal (Figure 1G).
Renal biopsy shows: (A). The number of cells in the glomerulus increased, focal and segmental hyperplasia of mesangial cells and stroma, and multiple crescents (HE, X100); (B). Cellular crescents (PAS, X400); (C). IgA deposited in glomerular mesangial area (IF, X400).
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F2
Diagnosis: HSPN/ IgAVN IIIa (Figure 2).