Weak Antigravity Limb Movements in Pediatrics — Case | General Pediatrics | SMLE Q#17341
SMLE Question #17341
Pediatrics
General Pediatrics
Objective: OBJ-377
Last updated: February 2026
A 6-week-old term male infant is brought for generalized hypotonia and poor feeding endurance. Parents report he feels “floppy” when picked up and tires during bottle feeds. Examination shows poor head control, marked axial hypotonia, symmetric weakness with weak antigravity limb movements, and decreased deep tendon reflexes. Extraocular movements and facial strength are intact. What is the most likely diagnosis?
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