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Infundibular carcinoma of the skin: a distinct morphological and immunohistochemical entity
  1. Siba Haykal1,
  2. Ayman S Al Habeeb2,
  3. David P Goldstein3,
  4. Christian A Murray4,
  5. Danny Ghazarian2
  1. 1Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, Ontario, Canada
  2. 2Department of Pathology, University Health Network, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
  3. 3Department of Otolaryngology, Head and Neck Surgery, University Health Network, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
  4. 4Department of Dermatology, Women's College Hospital, University of Toronto, Toronto, Ontario, Canada
  1. Correspondence to Danny Ghazarian, Department of Pathology, University Health Network, Toronto General Hospital, University of Toronto, 11th Floor, Rm E11-003, 200 Elizabeth St, Toronto, Ontario M5G 2C4, Canada; danny.ghazarian{at}uhn.on.ca

Abstract

This report describes a new entity which has been defined as infundibular carcinoma (IC) of the skin. This new entity must be distinguished from other basaloid carcinomas arising from the epidermis, the hair follicles or from sweat duct and glandular elements. Specific criteria have been used to define ICs. These include the macroscopic and the microscopic site of the tumour as well as its histomorphological and immunohistochemical patterns. A brief review of benign and malignant tumours of the pilar unit and the differential diagnosis of IC is also provided.

  • Skin adnexal tumours
  • benign neoplasms of the pilar unit
  • malignant neoplasms of the pilar unit
  • infundibular carcinoma
  • dermatopathology
  • differentiation
  • morphology
  • neoplasms
  • skin

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Footnotes

  • Competing interests None.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; not externally peer reviewed.

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