The eyebrow sign: A distinctive sonographic appearance of calcified Peyronie's plaques

Abstract

Peyronie’s disease is a fibrotic disorder of the tunica albuginea characterized by plaque formation, penile curvature and erectile dysfunction. We report a 50-year-old man with a hard palpable nodule on the dorsal aspect of the penis. High-frequency transverse ultrasound demonstrated a curvilinear hyperechoic calcified tunical plaque with posterior acoustic shadowing, resembling the contour of an eyebrow. We propose the term “Eyebrow Sign” for this distinctive sonographic appearance of calcified Peyronie’s plaque, which appears to be underreported in the existing literature. Recognition of this sign may facilitate confident identification of chronic disease, improve reporting consistency and serve as an educational tool in penile imaging.