Abstract
Hidradenitis suppurativa (HS) is a chronic inflammatory disease affecting intertriginous areas of the body, characterized by painful nodules, abscesses, sinusoidal tracts, and fistulas. Surgery is crucial for treatment, being potentially curative and achieving high satisfaction levels. Pre-surgical evaluations are often limited by the difficulty of detecting fistulous tracts and deep nodules. Ultrasound has emerged as a staging, follow- up, treatment response evaluation, and preoperative management method for HS. It enables accurate localization of subclinical lesions and optimizes surgical results. This report presents two representative cases of pre-surgical ultrasound evaluation in HS.