SPECIAL - Size thresholds to treat

Question 1

Renal AML

Answer 1

> 4 cm

Question 2

Hepatic adenoma

Answer 2

> 5 cm

Question 3

Pulmonary AVM

Answer 3

> 3 mm (afferent/feeding vessel)

Question 4

Gallbladder polyp

Answer 4

> 10 mm, or >6 mm + suspicious features

Question 5

IPMN

Answer 5

> 3 cm, ductal dilatation >10 mm, or mural nodularity

Question 6

Splenic artery aneurysm

Answer 6

> 2 cm, symptomatic, or prior to expected pregnancy

Question 7

Abdominal aortic aneurysm

Answer 7

> 5 cm, growing at >1 cm/year, or symptomatic

Question 8

Ascending thoracic aortic aneurysm

Answer 8

> 5.5 cm (or >5 cm for Marfan’s/familial/bicuspid AV), growing at >1 cm/year, or symptomatic

Question 9

Descending thoracic aortic aneurysm

Answer 9

> 6.5 cm (or >6 cm for Marfan’s/familial/bicuspid AV), growing at >1 cm/year, or symptomatic

Question 10

Renal abscess

Answer 10

> 3 cm; percutaneous drainage

Question 11

Popliteal artery aneurysm

Answer 11

> 2 cm or symptomatic

Question 12

Renal artery aneurysm

Answer 12

> 2 cm

Question 13

Iliac artery aneurysm

Answer 13

> 3 cm

Question 14

Adrenal myelolipoma

Answer 14

at least >7 cm (sources somewhat unclear)