Final answer:
The most likely diagnosis for an overweight adolescent boy experiencing pain in his hip that radiates to the medial aspect of his knee, along with a limp, is slipped capital femoral epiphysis (SCFE).
Step-by-step explanation:
The most likely diagnosis for an overweight adolescent boy experiencing pain in his hip that radiates to the medial aspect of his knee, along with a limp, is slipped capital femoral epiphysis.
Slipped capital femoral epiphysis (SCFE) is a condition where the epiphysis (growth plate) of the femur slips from its normal position.
Obesity is a risk factor for SCFE, and the symptoms described are consistent with this condition.