Childhood Phimosis Secondary to Lichen Sclerosus: Is There a Spatial Pattern of Histopathological Changes?

Area of Science:

• Pediatric Pathology
• Dermatopathology
• Genitourinary Pathology

Background:

• Accurate histopathological diagnosis of phimotic prepuce is crucial for managing genital dermatoses like lichen sclerosus (LS).
• Childhood phimosis necessitates a detailed histopathological analysis to identify underlying conditions such as LS.
• Early detection and treatment of LS in pediatric phimosis are vital for effective management and follow-up.

Purpose of the Study:

• To analyze the histopathological spectrum of childhood phimosis, with a specific focus on lichen sclerosus (LS).
• To identify and highlight a peculiar pattern of histopathological evolution of LS in the pediatric prepuce.
• To correlate histopathological findings with the clinical presentation of phimosis in children.

Main Methods:

• Histopathology slides from 43 pediatric preputial circumcision specimens for pathological phimosis were analyzed.
• Eight key histopathological features were assessed on the inner preputial surface, tip, and outer preputial surface.
• LS lesions were classified into early, established, and advanced stages based on evolutionary and histopathological characteristics.

Main Results:

• Lichen sclerosus (LS) was diagnosed in 32 cases (74.4%), while 11 cases (25.6%) showed non-specific inflammation and fibrosis.
• Common histopathological changes included upper dermal homogenization (n=29), dermoepidermal cleft (n=28), and mid dermal band (n=27).
• Established and advanced LS changes were predominantly found on the inner preputial surface (n=31), with the outer surface remaining unaffected.

Conclusions:

• Lichen sclerosus (LS) is a frequent cause of phimosis in children.
• A distinctive histopathological evolution pattern of LS in the prepuce was observed.
• Thorough examination of the inner preputial mucosal surface is essential for diagnosing LS in cases of childhood phimosis.