197.All are true regarding solitary pulmonary nodule except
a.dubling time of most peripheral pulmonary carcinomas is is more than 18 months
b. A lack of enhancement (< 15 HU) is indicative of benignity
c. ill-defined margins with umlication may be noted in carcinoma
d. PET or PET–CT has sensitivity, specificity and accuracy of 90% or greater in the diagnosis of benign nodules
e. False-negative results PET may occur in bronchiolo-alveolar carcinoma.
a.dubling time of most peripheral pulmonary carcinomas is is more than 18 months
b. A lack of enhancement (< 15 HU) is indicative of benignity
c. ill-defined margins with umlication may be noted in carcinoma
d. PET or PET–CT has sensitivity, specificity and accuracy of 90% or greater in the diagnosis of benign nodules
e. False-negative results PET may occur in bronchiolo-alveolar carcinoma.
198.All are true regarding interstitial lung disease
except
a.HRCT provides insight into disease reversibility and
prognosis.
b. A reticular pattern on CT almost always represents
significant
ILD
c. Smooth Interlobular septal thickening is seen in
pulmonary
oedema
d. irregular
interlobular septal thickening is seen in alveolar
proteinosis
e.
Intralobular septal thickening seen in all ILDs
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