Point-of-care ultrasound: Uniting cardiology and nephrology at the bedside

Figure 3 Basic lung ultrasound findings. A: Normal lung with horizontal hyperechoic artifacts known as A-lines; B: Pleural effusion (asterisk) appearing as an anechoic area above the liver; the arrow points to atelectatic lung; C: Vertical hyperechoic artifacts called B-lines emerging from the pleural line, indicative of interstitial thickening typically due to fluid accumulation; D: Interstitial pneumonia, characterized by confluent B-lines and an irregular pleural line, with the arrow indicating a subpleural consolidation. Citation: Diniz H, Ferreira F, Koratala A. Point-of-care ultrasonography in nephrology: Growing applications, misconceptions and future outlook. World J Nephrol 2025; 25: 14: 105374. Copyright© The Author(s) 2025. Published by Baishideng Publishing Group Inc[29].