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Old 09-30-2012
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X Ray Pulmonary Nodule: Risk factors for malignancy

A 38-year-old man is being seen in his physician’s office after being involved in a car accident. He has a vague pain along his right sternal border, where he crashed into the steering wheel. His temperature is 36.6°C (97.8°F), pulse is 80/min, blood pressure is 123/75 mm Hg, respiratory rate is 14/min, and oxygen saturation is 99% on room air. Physical examination is significant for point tenderness over the right sternal border. X-ray of the chest shows no broken ribs but a single, well-circumscribed pulmonary nodule, 1.5 cm in diameter, located in the left lower lung field. A search through the patient’s electronic medical file reveals that he had an x-ray of the chest taken 2 years ago. The radiology report from that time reveals that the nodule was only 0.75 cm in diameter. To characterize the lesion, CT of the chest is performed and shows dense, flocculated calcification within the lesion. Which of the following risk factors most increases the chances of malignancy in this patient?


(A) Increased doubling time of tumor
(B) Increased patient age
(C) Nodule diameter of 1.5 cm or higher
(D) Presence of discrete border
(E) Presence of flocculated calcification
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Old 09-30-2012
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I would say A?
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Old 09-30-2012
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Would go with C
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(A) Increased doubling time of tumor
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Correct Answer

Correct Answer is A
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Pulmonology-, Radiology-, Step-2-Questions

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