1. Hypothenar hammer syndrome: Proposed etiology
Brian L. Ferris, MD, Lloyd M. Taylor, MD, Karen Oyama, MD, Robert B. McLafferty, MD, James M. Edwards, MD, Gregory L. Moneta, MD, John M. Porter, MD 
Journal of Vascular Surgery 
Volume 31, Issue 1, Pages (January 2000)
DOI: /S (00)
Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2. Fig. 1
A, Arteriogram of symptomatic hand in a patient with digital artery occlusion (small arrows ) and an abnormal palmar ulnar artery segment (large arrow ). B, Contralateral, asymptomatic hand, which also has an abnormal palmar ulnar artery (arrow ).
Journal of Vascular Surgery  , DOI: ( /S (00) )
Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3. Fig. 2
Operative specimen consisting of palmar ulnar artery segment from a patient with hypothenar hammer syndrome. Note multiple septations (arrows ) and alternating stenosis and ectasia.
Journal of Vascular Surgery  , DOI: ( /S (00) )
Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4. Fig. 3
A, Hematoxylin and eosin stain of abnormal ulnar artery segment, with areas of intimal hyperplasia, from a patient with hypothenar hammer syndrome (original magnification, 40×). B, Trichrome stain of abnormal ulnar artery showing disruption of the internal elastic lamina (small arrow ) and intimal hyperplasia (large arrow ; original magnification, 100×). C, Verhoeff von Geison stain of abnormal ulnar artery segment showing intimal hyperplasia (large arrow ) and disruption of the internal elastic lamina (small arrow ; original magnification, 40×).
Journal of Vascular Surgery  , DOI: ( /S (00) )
Copyright © 2000 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions