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Related Experiment Videos

[Cutaneous basosquamous cell carcinoma].

G Lehnerdt1, D Manz, K Jahnke

  • 1Universitäts-Hals-Nasen-Ohrenklinik, Universität Duisburg-Essen, Hufelandstrasse 55, 45122 Essen, Deutschland. goetz.lehnerdt@uni-due.de

HNO
|April 28, 2007
PubMed
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Basosquamous carcinoma (BSC) is a rare skin cancer with features of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). Immunohistological staining aids diagnosis, and treatment should resemble SCC due to its aggressive nature and metastatic potential.

Area of Science:

  • Dermatology
  • Oncology
  • Pathology

Background:

  • Basosquamous carcinoma (BSC) is a rare skin malignancy.
  • It exhibits histopathological features of both basal cell carcinoma (BCC) and squamous cell carcinoma (SCC).
  • The histological diagnosis and surgical management of BSC remain challenging due to its low incidence.

Purpose of the Study:

  • To describe the diagnostic and therapeutic aspects of basosquamous carcinoma.
  • To evaluate the utility of immunohistological markers in BSC diagnosis.
  • To inform surgical management strategies for BSC.

Main Methods:

  • Retrospective analysis of nine BSC cases (8 male, 1 female; average age 68.6 years).
  • Immunohistochemical staining using epithelial membrane antigen (EMA) and BerEP4.

Related Experiment Videos

  • Surgical interventions included partial/total pinna removal, auricle removal with parotidectomy/neck dissection, and local excision.

    • Main Results:

    • Immunohistochemical staining showed negative EMA (except in pearl formations) and positive BerEP4 in all cases.
    • Surgical treatments varied based on location and extent.
    • Median follow-up was 45 months, with one local recurrence observed.

    Conclusions:

    • Immunohistological staining with EMA and BerEP4 confirms the diagnosis of BSC.
    • BSC is a rare, aggressive skin tumor with a significant risk of metastasis, despite histological similarities to BCC.
    • Therapeutic strategies for BSC should align with those for SCC, considering patient age and general health.