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Clinical information

CASE 11:

Male, 10 years. Papule, skin of back.

Show diagnosis & comments

Diagnosis:

Balloon cell naevus

Comments:

BALLOON CELL NAEVI:

  • Dermal or compound naevus of usual type
  • Presence of groups or sheets of 'balloon' naevus cells with copious fine vacuolated cytoplasm
  • Balloon cells stand out from surrounding population of unremarkable naevus cells
  • No 'maturation' of balloon cell component
  • A few ascending balloon cells within the epidermis may be present. Because of the ballooning phenomenon, stey stand out more more distinctly in H&E sections than small asecnding naevus cells seen in other naevi. This can be a source of overdiagnosis
  • No nuclear atypia
  • No, or hardy any, mitotic activity

Reference:

Schrader WA, Helwig EB.  Cancer. 1967; 20: 1502-14.

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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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