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Clinical information

Case 42 Female, 18 years. Pigmented papule, skin of back.

Show diagnosis & comments

Diagnosis:

Halo naevus (Sutton naevus)

Comments:

HALO NAEVI:

  • Densely cellular lesion, predominantly dermal, symmetrical, with regular appearance
  • Naevus cells and predominantly lymphocytic round-cell infiltrate closely intermingled
  • No variations in cellularity of the inflammatory response
  • No areas of fibrosis alternating with active inflammation
  • No compact nodules of melanocytes devoid of inflammatory infiltrate
  • No high-grade atypia of melanocytes, or abrupt changes in cell type from area to area
  • A few mitotic figures commonly present
  • Usually adolescent or young adult, presenting with change (growth; itching; erythema) in / around previously stable mole
  • Halo of depigmentation around the lesion has usually not yet developed at this early stage
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Dear {friend_name}, {url} I believe this website may be of interest to you. It is an Open Educational Resource, containing a large collection of digitized histologic slides with explanatory films and other materials, aimed at surgical pathologists, dermatopathologist and pathologists in training. This site is entirely based on consultation materials of professor Wolter Mooi, VU University Amsterdam, and can be used free of charge. Kind regards, {my_name}

Slide sets

  • Common acquired naevus
  • Spitz naevus and variants
  • Blue naevus and variants
  • Congenital naevus
  • Dysplastic naevus
  • Nonmelanocytic skin lesions; some DD's
  • Melanoma: general features
  • Melanoma subtypes
  • Extracutaneous melanocytic lesions
  • Extracutaneous nonmelanocytic pigmented lesions
  • Problems and pitfalls

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