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Dermatology12 papers

Epidermolytic acanthoma

Last edited: 4/16/2026

Overview

Epidermolytic acanthoma, also described under the context of nevoid follicular epidermolytic hyperkeratosis, is a benign skin lesion characterized by hyperkeratosis and acanthosis primarily affecting follicular epithelium, often presenting as solitary or grouped papules, typically on the trunk or extremities 1.

Diagnosis

  • Clinical Presentation: Comedo-like follicular papules, usually unilateral and localized 1.
  • Histological Features: Compact hyperkeratosis involving follicular epithelium and sebaceous ducts, with minimal interfollicular epidermal changes 1.
  • Differential Diagnosis: Includes other hyperkeratotic conditions like seborrheic keratoses and Bowen's disease, requiring histopathological confirmation 1.

    • Management

  • Surgical Excision: Often curative for solitary lesions 1.
  • Electrosurgery: May be used for larger or multiple lesions 1.
  • No Specific Medical Therapy: Generally not required; symptomatic or cosmetic concerns may prompt intervention 1.

    • Special Populations

  • Pediatrics: Limited data; presentation similar to adults but less common 1.
  • Elderly: No specific considerations noted; management similar to other age groups 1.
  • Comorbidities: No specific interactions or considerations mentioned 1.

    • Key Recommendations

  • Confirm diagnosis histologically due to overlapping clinical features with other conditions (Evidence: Moderate 1).
  • Surgical excision is recommended for definitive treatment of solitary lesions (Evidence: Expert opinion 1).
  • Electrosurgery can be considered for larger or multiple lesions to achieve cosmetic improvement (Evidence: Expert opinion 1).

    • References

    1 Plewig G, Christophers E. Nevoid follicular epidermolytic hyperkeratosis. Archives of dermatology 1975. link

    Original source

    1. [1]
      Nevoid follicular epidermolytic hyperkeratosis. — Plewig G, Christophers E Archives of dermatology (1975)
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