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
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.
Telangiectases of the Distal Lower Extremities Associated With Paresthesia and Raynaud Phenomenon—Diagnosis. JAMA Dermatol. 2013;149(1):98. doi:10.1001/2013.jamadermatol.17b