Season 9 Case 3

Hx: Chest pain

Diagnosis?

Large round opacity right lung base.

On frontal does NOT obscure anterior diaphragm or R heart border - ie posterior/RLL

On lateral DOES “obscure” entire posterior R diaphragm

-congenital defect in posterior diaphragm attachment

- Can be either side (classic =L side in symptomatic infantslung hypoplasia, but R m/c in adults?)

- typically only fat but ~25% can contain abd organs

Hint: Bochdalek = Back