"grade 0: intact tunica albugenia with a haematoma superficial or deep to Buck's fascia"
"grade II: defect in the tunica albuginea and/or corpora cavernosum with associated peri-albugineal and/or cavernosal haematoma"
"This grading system is not widely used, validated, or recognised by relevant urological surgical societies (c. 2025) 1,2. Nonetheless, this system, which relies on ultrasound assessment of the tunica albuginea, corpora of the penis, urethra and other fascias 1, helps the sonographer and radiologist focus on key structures."