← Back to guidelines
Dermatology24 papers

Primary extramammary Paget disease of skin

Last edited: 4/15/2026

Overview

Extramammary Paget disease (EMPD) is a rare malignancy typically arising in apocrine gland-bearing areas such as the genital, perianal, and axillary regions 1.

Diagnosis

  • Clinical Presentation: Typically involves persistent, scaly, eczematous patches in affected areas 1.
  • Biopsy: Essential for diagnosis; mapping biopsy recommended for extent evaluation 1.
  • Mucin Staining: Rapid mucicarmine staining technique on frozen sections can aid in confirming mucin production, crucial for diagnosis 2.
  • Management

  • Surgical Excision: Primary treatment, often requiring wide local excision with clear margins 1.
  • Sentinel Lymph Node Biopsy: Considered in cases with high suspicion of lymph node involvement 1.
  • Adjuvant Therapy: Not routinely recommended without specific risk factors or advanced disease stages 1.
  • Special Populations

  • No Specific Guidance: Abstracts do not provide detailed recommendations for pregnancy, pediatrics, elderly, or comorbid conditions 12.
  • Key Recommendations

  • Utilize mapping biopsy for accurate assessment of disease extent in EMPD management (Evidence: Moderate) 1.
  • Consider sentinel lymph node biopsy in cases where lymph node metastasis is suspected (Evidence: Moderate) 1.
  • Employ rapid mucicarmine staining technique on frozen sections to aid in rapid diagnosis (Evidence: Weak) 2.
  • References

    1 Matsushita S, Kajihara I, Tsutsui K, Hirai I, Maekawa T, Maeda T et al.. Japanese Dermatological Association Guidelines: Clinical Questions of Guidelines for Extramammary Paget Disease 2025. The Journal of dermatology 2025. link 2 Soans S, Galindo LM, Garcia FU. Mucin stain on frozen sections: a rapid 3-minute method. Archives of pathology & laboratory medicine 1999. link

    Original source

    1. [1]
      Japanese Dermatological Association Guidelines: Clinical Questions of Guidelines for Extramammary Paget Disease 2025.Matsushita S, Kajihara I, Tsutsui K, Hirai I, Maekawa T, Maeda T et al. The Journal of dermatology (2025)
    2. [2]
      Mucin stain on frozen sections: a rapid 3-minute method.Soans S, Galindo LM, Garcia FU Archives of pathology & laboratory medicine (1999)

    HemoChat

    by SPINAI

    Evidence-based clinical decision support powered by SNOMED-CT, Neo4j GraphRAG, and NASS/AO/NICE guidelines.

    ⚕ For clinical reference only. Not a substitute for professional judgment.

    © 2026 HemoChat. All rights reserved.
    Research·Pricing·Privacy & Terms·Refund·SNOMED-CT · NASS · AO Spine · NICE · GraphRAG