Giant vascular spiradenocylindroma of the scalp clinically mimicking a vascular tumor.

We present a giant vascular spiradenocylindroma (GVSC) with a unique presentation. The diagnosis of GVSC can be clinically and radiologically elusive. The differential diagnosis includes angiolipoma, angiosarcoma, and glomus-tumor-like vascular lesions. Dermatologists should consider this variant of spiradenocylindroma in any vascular-like lesion.