Derm Dx: Ptosis following an outpatient cosmetic procedure

A 54-year-old man presents with a drooping right eyelid that was first noted 2 weeks before this consultation. He is in good health and does not smoke; he denies any history of systemic disease, recent weight loss, palpitations, cough, or fatigue. The patient currently takes finasteride for prevention of hair loss. He underwent an outpatient cosmetic procedure 3 weeks earlier. ...