A 66-year-old man presenting with cough and dyspnea has vital signs: BP 138/88, HR 92, RR 18, SpO2 92% on room air. CT chest reveals a 3.4 cm spiculated right upper lobe nodule with irregular margins that enlarged from 2.8 cm over 6 months, associated with asymmetric hilar adenopathy. Laboratory studies show normal ACE level. He denies constitutional symptoms and takes only albuterol as needed. Which feature most strongly suggests malignancy rather than benign granuloma?
- A)Diameter less than 4 mm
- B)Spiculated border with interval growthGABARITO
- C)Stable size over 2 years
- D)Smooth sharply circumscribed border
- E)Central laminated calcification
Explicação
Features concerning for malignancy in a solitary pulmonary nodule include size greater than 3 cm, interval growth, irregular or spiculated borders, pleural nodularity, and enlarged hilar or mediastinal nodes. This patient's lesion has several of those worrisom... Ver explicação completa e trilha adaptativa →