Common things are common, except when the diagnosis is rare
During my training at Hennepin County Medical Center (HCMC) in Minneapolis, MN, my mentor would use the following teaching pearl during rounds: “When you hear hoofbeats, think of horses not zebras!” He would also frequently use: “If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck.” What did my mentor, the Sage of HCMC, mean by this?
From Wikipedia: “Zebra …