Benign Lesions in Mucosa Near Sinonasal Adenocarcinoma
Author Information
Author(s): Blanca Vivanco, José Luis Llorente, Jhudit Perez-Escuredo, Marcos César Álvarez, Manuel Florentino Fresno, Mario A. Hermsen
Primary Institution: Hospital Universitario Central de Asturias
Hypothesis
What are the precursor lesions or biomarkers in the mucosa adjacent to intestinal-type sinonasal adenocarcinoma (ITAC)?
Conclusion
Precursor lesions do occur in mucosa adjacent to ITAC, which may justify screening high-risk individuals like woodworkers.
Supporting Evidence
- Mild dysplasia was observed in 14% of cases.
- Cuboidal metaplasia was found in 57% of samples.
- P53 immunopositivity was generally weak, occurring most frequently in squamous metaplasia.
- Dysplasia adjacent to tumor was indicative of subsequent development of recurrence.
- The 5-year survival rate was 53%.
Takeaway
The study looked at tissue samples from people with a type of nose cancer and found changes in the nearby tissue that could be early signs of cancer.
Methodology
The study analyzed 51 samples of tumor-adjacent mucosa and 19 control samples for histological changes and p53 protein expression.
Potential Biases
Potential bias due to the selection of patients with specific occupational exposure.
Limitations
The study had a small sample size and focused primarily on patients with occupational exposure to wood dust.
Participant Demographics
Of the 51 patients, 50 were male and 1 was female, with a mean age of 65 years; 45 had wood dust exposure.
Statistical Information
P-Value
0.029
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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