Sinus pericranii with facial involvement—A great mimicker

Abstract

Sinus pericranii (SP) is a rare vascular anomaly that is defined by an abnormal communication between the intra-and extracranial venous systems through a calvarial defect(s). 1 Typical clinical presentation consists of a soft non-pulsatile mass along or close to the midline that increases in size with a Valsalva maneuver. The cutaneous features are highly variable and the condition is not well-known among dermatologists, which can lead to a delay in diagnosis. 2,3 Herein, we report three cases of SP involving the midline scalp, forehead, and nose, emphasizing its cutaneous presentation, along with diagnostic pitfalls.