Description

The Fleischner Society developed guidelines for managing a patient with a small pulmonary nodule detected on a CT scan.


Patient selection:

(1) age > 35 years

(2) incidental nodule found on CT scan of the chest

 

Parameters:

(1) length of the lesion in mm

(2) wideth of the lesion in mm

(3) low vs high risk patient

 

size of the lesion in mm =

= ((length) + (width)) / 2

 

High risk patients:

(1) history of smoking (other than minimal)

(2) history of lung cancer in a first degree relative

(3) exposure to asbestos

(4) exposure to uranium

(5) exposure to radon

 

Size in mm

Management of a Low Risk Patient

<= 4 mm

No follow-up.

4.1 to 6 mm

Follow-up CT at 12 months. If unchanged then no further follow-up.

6.1 to 8 mm

Follow-up CT at 6-12 months. If no change then follow-up at 18-24 months.

> 8 mm

Follow-up at 3, 9 and 24 months (see note).

 

where:

• Follow-up for a nodule > 8 mm may include dynamic contrast-enhanced CT, PET and/or biopsy.

 

Size in mm

Management of a High Risk Patient

<= 4 mm

Follow-up CT at 12 months. If unchanged then no further follow-up (see below).

4.1 to 6 mm

Follow-up CT at 6-12 months. If no change then follow-up at 18-24 months (see below).

6.1 to 8 mm

Follow-up CT at 3-6 months. If no change then follow-up at 9-12 months and at 24 months (see below).

> 8 mm

Follow-up at 3, 9 and 24 months (as above).

 

where:

• The recommendations for a high risk patient in the first and second categories is the same as the second and third categories for a low risk patient respectively.

• A high risk patient with a nonsolid ground glass or partly solid nodule should have a longer follow-up to exclude an indolent adenocarcinoma.


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