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January 2013

Telangiectases of the Distal Lower Extremities Associated With Paresthesia and Raynaud Phenomenon—Diagnosis

Author Affiliations
 

SECTION EDITOR: MARY S. STONE, MD; ASSISTANT SECTION EDITORS: SOON BAHRAMI, MD; CARRIE ANN R. CUSACK, MD; MOLLY A. HINSHAW, MD; ARNI K. KRISTJANSSON, MD; LORI D. PROK, MD

JAMA Dermatol. 2013;149(1):98. doi:10.1001/2013.jamadermatol.17b

On histopathologic examination, there was dilation of superficial vessels with eosinophilic hyaline material present in the vessel walls, which was periodic acid–Schiff and type IV collagen positive (Figure 2 and Figure 3, respectively). There was a near total absence of staining for smooth muscle actin in some of the hyalinized superficial vessels. However, there was normal smooth muscle actin staining of deeper dermal vessels.

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