ABCB4 gene mutation-associated cirrhosis with systemic amyloidosis: A case report

Figure 3 Electrocardiogram, electromyography, and ATP-binding cassette, subfamily B gene mutation sites. A: Electrocardiogram from January 2022. Note: The electrocardiogram shows sinus tachycardia, heart rate 124 bpm, left ventricular high voltage T wave changes (V1-V4 low level, inversion), and QT interval prolongation; B: Electromyography from January 2022. Note: The electromyography showed that the conduction velocity of the bilateral superficial peroneal nerve was slightly slowed and the amplitude was reduced; C: The ATP-binding cassette, subfamily B (ABCB4) c.2318 G>T heterozygous mutation. Note: The red arrow shows a G to T transformation of the 2318 base on chromosome 7, resulting in the transformation of codon 773 from Gly to Val and the encoding product from glycine to valine.