NEJM on X: "Duchenne muscular dystrophy, the most common childhood muscular dystrophy, with an estimated prevalence of 1 in 5000 boys 5 to 9 years of age, is a recessive degenerative disorder caused by variants in the dystrophin gene that lead to deficiency of dystrophin. Learn more in “A 4-Year-Old Boy with Fatigue, Imbalance, and Frequent Falls,” a Case Record of the Massachusetts General Hospital, by Alexy D. Arauz Boudreau, MD, MPH, Hee Mang Yoon, MD, PhD, and Brenda L. Wong, MB, BS: https://t.co/L8ea1vsA6j"

Duchenne muscular dystrophy, the most common childhood muscular dystrophy, with an estimated prevalence of 1 in 5000 boys 5 to 9 years of age, is a recessive degenerative disorder caused by variants in the dystrophin gene that lead to deficiency of dystrophin. Learn more in “A 4-Year-Old Boy with Fatigue, Imbalance, and Frequent Falls,” a Case Record of the Massachusetts General Hospital, by Alexy D. Arauz Boudreau, MD, MPH, Hee Mang Yoon, MD, PhD, and Brenda L. Wong, MB, BS: nej.md/4h7h0SP
An illustrated diagram of multisystem findings in patients with Duchenne Muscular Dystrophy. The image highlights physical features such as shoulder and arm positioning, a protruding belly, calf muscles with pseudohypertrophy, and a waddling gait. Annotations describe muscle weakness, respiratory challenges, positional deformity, and difficulty maintaining balance, leading to frequent falls.