Basaloid Squamous Cell Carcinoma of the Head and Neck: Subclassification into Basal, Ductal, and Mixed Subtypes Based on Comparison of Clinico-pathologic Features and Expression of p53, Cyclin D1, Epidermal Growth Factor Receptor, p16, and Human Papilloma
Journal of Pathology and Translational Medicine
;
: 374-380, 2017.
Artigo
em Inglês
| WPRIM
| ID: wpr-208877
ABSTRACT
BACKGROUND:
Basaloid squamous cell carcinoma (BSCC) is a rare variant of squamous cell carcinoma with distinct pathologic characteristics. The histogenesis of BSCC is not fully understood, and the cancer has been suggested to originate from a totipotent primitive cell in the basal cell layer of the surface epithelium or in the proximal duct of secretory glands.METHODS:
Twenty-six cases of head and neck BSCC from Asan Medical Center, Seoul, Korea, reported during a 14-year-period were subclassified into basal, ductal, and mixed subtypes according to the expression of basal (cytokeratin [CK] 5/6, p63) or ductal markers (CK7, CK8/18). The cases were also subject to immunohistochemical study for CK19, p53, cyclin D1, epidermal growth factor receptor (EGFR), and p16 and to in situ hybridization for human papillomavirus (HPV), and the results were clinico-pathologically compared.RESULTS:
Mixed subtype (12 cases) was the most common, and these cases showed hypopharyngeal predilection, older age, and higher expression of CK19, p53, and EGFR than other subtypes. The basal subtype (nine cases) showed frequent comedo-necrosis and high expression of cyclin D1. The ductal subtype (five cases) showed the lowest expression of p53, cyclin D1, and EGFR. A small number of p16- and/or HPV-positive cases were not restricted to one subtype. BSCC was the cause of death in 19 patients, and the average follow-up period for all patients was 79.5 months. Overall survival among the three subtypes was not significantly different.CONCLUSIONS:
The results of this study suggest a heterogeneous pathogenesis of head and neck BSCC. Each subtype showed variable histology and immunoprofiles, although the clinical implication of heterogeneity was not determined in this study.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Características da População
/
Carcinoma de Células Escamosas
/
Seguimentos
/
Causas de Morte
/
Proteína Supressora de Tumor p53
/
Hibridização In Situ
/
Ciclinas
/
Ciclina D1
/
Fator de Crescimento Epidérmico
/
Células Epiteliais
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Humanos
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Journal of Pathology and Translational Medicine
Ano de publicação:
2017
Tipo de documento:
Artigo
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