Squamous carcinoma of the external ear

Area of Science:

• Dermatology
• Oncology
• Surgical Pathology

Background:

• Squamous cell carcinoma (SCC) of the external ear is a significant clinical challenge.
• Understanding its epidemiological and clinical characteristics is crucial for effective management.

Purpose of the Study:

• To analyze the clinical features, treatment outcomes, and prognostic factors of external ear SCC.
• To evaluate the efficacy of surgical management and adjuvant therapies.

Main Methods:

• Retrospective analysis of medical records from 486 patients with pathologically confirmed external ear SCC.
• Review of treatment modalities, including surgical ablation and postoperative irradiation.
• Assessment of survival rates, local control, and incidence of nodal metastases.

Main Results:

• The disease predominantly affects elderly white men, with the helix being the most common site.
• Well-differentiated SCC was the most frequent histologic type.
• Surgical treatment achieved 87% regional control, but overall survival was 28%, influenced by patient age and intercurrent diseases.
• Nodal metastasis incidence was 12%.

Conclusions:

• Aggressive surgical management is effective for local control of external ear SCC.
• Selected use of adjuvant radiotherapy is warranted for patients with locally invasive tumors, multiple nodal metastases, or extracapsular invasion.
• Prognosis is significantly impacted by patient age and comorbidities, rather than solely by tumor characteristics.