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3 criteria for solitary pulmonary nodule (SPN)
Isolated (only ONE), not associated with infiltrates or atelectasis or adenopathy, and
<3cm
An SPN is also known as a ____ lesion
coin
Do benign or malignant lung lesions typically have a strong calcification pattern?
(white on xray)
benign
What 4 things are the MC etiology of solitary pulmonary nodules?
Cancer (primary or metastatic), infectious granuloma, hamartoma, scar from previous
infection
MC benign solitary nodules?
hamartoma
Appearance of hamartoma on CT
Popcorn calcification
2 most important history/risk factors in determining if a lung nodule is benign or
cancerous
Age of patient, smoking status
4 high risk factors for an SPN being malignant
Personal or family history of cancer, abnormal appearance, hx of smoking, upper lobe
location
Is a thin walled cavitation likely to involve a benign or malignant lung lesion?
Benign (malignant = thick walled cavitation)
A "spiculated" shape indicates benign or malignant lesion?
malignant
What calcification types would indicate a benign lesion? Central, eccentric,
stippled, popcorn, diffuse, laminated
Central, laminated, diffuse, popcorn
What calcification types would indicate a benign lesion? Central, eccentric,
stippled, popcorn, diffuse, laminated
Stippled, eccentric
Is a large nodule more likely to be malignant or benign?
malignant
Management for patient with no history of cancer, non-smoker or nodule less
than <8 mm
Serial imaging w/ CXR or CT
Management for patient with history of smoking or nodule >8mm
Biopsy!! (CT-guided or bronchoscopy), PET scan, consult specialist