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A 17-year-old male presents to the emergency department for eye pain. The patient states that he has had left eye pain for the past week that has been steadily worsening. The patient denies any changes to his vision, trouble moving his left eye, or recent trauma. The patient smokes one pack of cigarettes a day, drinks alcohol socially, and has had unprotected sex with two males and four females this past month. His current medications include loratadine, nasal saline spray, and diphenhydramine. His temperature is 99.5°F (37.5°C), blood pressure is 100/55 mmHg, pulse is 72/min, respirations are 11/min, and oxygen saturation is 98% on room air. On physical exam, you note a healthy young man. Cardiopulmonary exam is within normal limits. His physical exam reveals the finding in Figure A. Which of the following is the most likely diagnosis?
Obstruction of the nasolacrimal duct
Staphylococcus aureus infection of the inferior rectus
Sexually transmitted infection
Thrombosis of a major vessel
Infection of a hair follicle
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A 7-year-old girl presents to the emergency department with swelling around her eye. This has happened to her before but has never been this severe. The lesion started a few days ago but has become increasingly red and painful. Physical exam reveals the lesion in Figure A which is tender to palpation. Her cranial nerves are intact and there is no pain with extraocular movements. Which of the following is the most likely diagnosis?