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Resolution
The diagnosis is a cavitary lesion in the right upper lung. The following mnemonic can be used for differential diagnosis:
C = Carcinoma
A = Autoimmune (Wegener‘s granulomatosis, rheumatoid nodules)
V = Vascular (emboli)
I = Infection (lung abscess, bacterial pneumonia, fungal pneumonia, tuberculosis, pneumatocele)
T = Trauma (pulmonary laceration)
Y = Young (congenital) (congenital cystic adenomatoid malformation, pulmonary sequestration, bronchogenic cyst)
Refer for CT and further evaluation.
Acknowledgement: Case presented by Nahum Kovalski, BSc, MDCM, Terem Emergency Medical Centers, Jerusalem, Israel.
Clinical Challenge: February, 2012
Nahum Kovalski, BSc, MDCM
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