Q. “ Crazy Paving ” appearance on HRCT can be seen in
a. Alveolar Proteinosis
b. Pneumocystis jiroveci pneumonia
c. acute respiratory distress syndrome [ARDS]
d. All of the above.
ANSWER:
Ans: D
Although initially described as typical of alveolar proteinosis, this appearance is nonspecific and may be seen in a variety of
acute lung diseases (e.g., edema, hemorrhage, Pneumocystis jiroveci pneumonia, and acute respiratory distress syndrome [ARDS])
or chronic lung diseases (alveolar proteinosis, exogenous lipoid pneumonia).
Nice question , i thought only alveolar proteinosis
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