Workup for Lichen Sclerosus of the Scrotum
In men with typical clinical features of genital lichen sclerosus (porcelain-white plaques on the glans, coronal sulcus, frenulum, or prepuce), biopsy is not routinely required and diagnosis is clinical. 1
Clinical Assessment
Essential Clinical Evaluation
Examine for the characteristic findings:
- Porcelain-white papules and plaques on the glans penis, coronal sulcus, frenulum, and prepuce
- Areas of ecchymosis (bruising)
- Hyperkeratosis, erosions, or erythema
- Phimosis or paraphimosis
- Meatal involvement - critical to assess as 20% develop urethral disease and 4% develop meatal stenosis 1
Symptom Assessment
Document:
- Sexual dysfunction (male dyspareunia)
- Urinary stream changes or voiding difficulties
- Painful erections
- Foreskin tightening
Note: Itch is NOT a prominent symptom in men with genital LS, unlike in women 1
When Biopsy is MANDATORY
A biopsy must be performed in the following situations: 1
Suspicion of malignancy - persistent hyperkeratosis, erosion, erythema, or new warty/papular lesions (urgent referral to specialist urologist for excision if highly suspicious for SCC)
Treatment failure - disease not responding to adequate topical corticosteroid therapy
Atypical features or diagnostic uncertainty
Pigmented areas - to exclude melanocytic proliferation
Before alternative therapy - if considering treatment other than potent topical steroids
Pre-surgical confirmation - if urological surgery is planned for urethral disease
At circumcision - foreskin should ALWAYS be sent for histology to exclude penile intraepithelial neoplasia (PeIN) and confirm diagnosis 1
Biopsy Technique
- Take from the most active sclerotic area
- Multiple mapping biopsies may be needed if extensive abnormality present
- Ensure good clinicopathological correlation with pathologist discussion 1
Additional Workup
Autoantibody Screen
Only perform if clinical features suggest an associated autoimmune disorder - not routinely indicated 1
Microbiological Swabs
Not required routinely, but indicated in:
- Erosive disease
- Topical steroid-resistant disease
- To exclude herpes simplex or Candida as complicating factors 1
Urological Assessment
Multidisciplinary approach with dermatology and urology is required when: 1
- Meatal disease is present (to prevent progression to urethral strictures)
- Urinary symptoms develop
- Urethral involvement suspected (ranges from purely meatal to panurethral)
Early treatment of meatal disease may prevent progression to urethral involvement and strictures 1
Critical Pitfalls
- Do not delay treatment waiting for biopsy in typical cases - LS is primarily a clinical diagnosis in men and children 1
- Do not miss meatal involvement - this requires specific assessment and early intervention to prevent urethral complications
- Always send circumcision specimens for histology even if diagnosis seems clear clinically
- Recognize that nonspecific histological features do not exclude LS 1
Malignancy Risk
While squamous cell carcinoma is associated with genital LS (particularly in older patients through chronic scarring rather than HPV), the risk appears lower in men than women. However, any suspicious lesions warrant urgent biopsy and specialist referral 1