Chronic obstructive pulmonary disease | Radiology Case | Radiopaedia.org
Jorge Cortés on X: "🔴When this occurs, the inspiratory contraction of the flattened diaphragm decreases the transverse diameter of the lower rib cage.🔴 Lemyze M, Bart F. Hoover sign. CMAJ. 2011;183:e133 https://t.co/4CBixbKY6x" /