Pancoast Tumor
©
William Herring, MD, FACR
Pancoast Tumor
General
Arises in superior sulcus of lung
Groove formed by subclavian artery
Unique among parenchymal processes
for its propensity to violate pleural
barrier and involve chest wall
Pancoast Tumor
General
Bone destruction is common — 1st rib
most often affected
Squamous cell most common cell type
Pancoast Tumor
Complications
Brachial plexus involvement
Horner’s syndrome
Ptosis
Myosis
Anhydrosis
And rarely, enopthalmus
Superior vena caval obstruction
When tumor occurs on right
Pancoast Tumor
Imaging
Apical cap on affected side
Flat, uniform density
DDX: apical pleural thickening
Other side usually normal in Pancoast,
thickened with apical pleural thickening
Pancoast Tumor
Imaging
Bone involvement
Key to diagnosis
AP of cervical spine frequently shows rib destruction
Bone scan may be needed if clinical suspicion high
MR helpful in showing involvement of
Blood vessel
Brachial plexus
Vertebral canal
Pancoast Tumor- Right apical soft tissue mass (red
arrow) with destruction of the 2
nd
posterior rib
(yellow arrow)
Pancoast Tumor- Left apical soft tissue mass (red
arrow) with destruction of the 2
nd
posterior rib
(yellow arrow)
Pancoast Tumor- Left apical soft tissue mass (red
arrow) with destruction of the 1st posterior rib
(yellow arrow)
The End