Perianal abscess and fistula Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 54-year-old man presents to the office with a severely painful anal mass that he noticed 3 days ago. He has anal pain that is constant and is made worse with defecation. He has a history of hypertension, for which he takes hydrochlorothiazide. He smokes ½ pack of cigarettes daily and drinks 6 beers on the weekends. Temperature is 38.4 °C (100.4 °F), pulse is 95/min, blood pressure is 155/92 mmHg, and respirations are 16/min. He is lying on his side and appears uncomfortable. Cardiopulmonary examination is normal. Abdominal examination is normal. Anal examination reveals a focal area of fluctuance with erythema and induration overlying the perianal skin. Which of the following additional physical examination findings would support the most likely diagnosis?  

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