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Histopathological features of juvenile-onset laryngeal papillomatosis related to severity
Vivian Narana Ribeiro El Achkar1, Andressa Duarte2, Román Carlos3
1Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, São Paulo State University - Unesp, São José dos Campos, Brazil.
Background:
Laryngeal papillomatosis (LP) is a disease that presents in both juvenile (JLP) and adult patients (ALP). This study correlated papillomatosis characteristics with the Derkay score.
Methods:
Retrospective data and biopsies of 36 patients with JLP and 56 with ALP were collected and separated into groups according to their scores.
Results:
The mean of the Derkay score, in the JLP group was 10.97 and in Group ALP was 8.26. The JLP group presented a more aggressive result than in the adult group (P = .02). In the JLP group, the respiratory difficulty (P = .01) and tracheostomy were correlated to a higher Derkay score (P < .05). Microscopically, the JLP samples presented a higher incidence of atypical mitosis and mitosis above the basal cells layer of the epithelium (P < .05) and these characteristics were correlated with a higher Derkay index (P = .03).
Conclusion:
Findings suggest that ALP and JLP can present different clinical courses and histopathological features. There was a higher degree of LP severity in JLP.
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