1.

A

Patients are usually under 5 years old. 

2.

E

Buerger's disease is THROMBANGITIS OBLITERANS. Pathology shows multinucleated giant cells within microabscesses during acute stage.

3.

A

4.

B

The patients have pulmonary venous HTN, but heart size is normal.

5.

A

6.

A

M-W bleeding is venous.

7.

D

Pulmonary artery HTN is associated with (1) idiopathic cause, (2) chronic embolic events, (3) long-term obstruction at or proximal to the mitral valve, (4) chronic L-R shunt and volume overload, (5) emphysema or any other interstitial disease that destroys most of the capillary bed in the lungs. 

8.

a.  T

b.  T

c.  T

9.

D

The right hepatic, most often

10.

C

11.

C

12.

C

13.

a.  T

b.  T

14.

D