A doctor is writing a diagnosis of a condition in a patient’s chart. The patient, Frank, is complaining of burning and irritation in his lower leg between his calf and his heel, to which the doctor says, “Yes, that’s your Achilles.” What did the doctor most likely diagnose?

The Achilles is a tendon connecting the calf muscles to the heel. A strain is an injury to a muscle or tendon, while a sprain affects a ligament. Because the doctor identifies the painful area as the Achilles, the most likely diagnosis is a strain.

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