Basal cell carcinomas of the ear are more aggressive than on other head and neck locations - 16/04/14
Abstract |
Background |
On pathology review, basal cell carcinomas (BCCs) on the ear more commonly present as aggressive subtypes. It is unclear if this histologic observation translates into more clinically aggressive tumors.
Objective |
We sought to determine the clinical aggressiveness of ear BCCs compared with BCCs elsewhere on the head and neck.
Methods |
We conducted a retrospective chart review of all BCCs treated at an academic center from 2005 through 2012. Subjects were divided into ear and non-ear groups. Subtypes classified as “aggressive” included morpheaform, infiltrative, micronodular, adenoid, metatypical, and mixed histology.
Results |
Of the 7732 head and neck BCCs, 758 (9.8%) were on the ear. Ear BCCs presented as larger lesions (1.28 vs 0.98 cm2), required more Mohs layers (16.5% vs 10.7%), and produced a larger final defect (4.29 vs 3.49 cm2) than non-ear lesions. When comparing only aggressive subtypes, ear BCCs also presented as larger lesions (1.42 vs 1.23 cm2), more frequently required 3 or more layers for clearance (22.3% vs 14.2%), and produced a larger final defect (4.92 vs 4.21 cm2) than non-ear lesions.
Limitations |
Limitations include single-center design and lack of long-term follow-up.
Conclusion |
Ear BCCs appear to exhibit greater subclinical extension compared with non-ear head and neck BCCs. Therefore, the ear should be considered a high-risk location for BCCs.
Le texte complet de cet article est disponible en PDF.Key words : anatomic location, basal cell carcinoma, Mohs micrographic surgery, nonmelanoma skin cancer, subclinical extension, tumor histology
Plan
Funding sources: None. |
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Conflicts of interest: None declared. |
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Reprints not available from the authors. |
Vol 70 - N° 5
P. 924-926 - mai 2014 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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