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Objectives: For the nasal mucosa biopsy, various instruments are used, and the histological result may vary. The purpose of this study is to describe and determine the frequency of satisfactory histological results of biopsy taken with gouge versus other instruments in patients with nasal mucosal lesions. Materials and methods: Cross-sectional study; included clinical records of patients who underwent nasal mucosa biopsy between 2005 to 2016 in a dermatological hospital in Bogota, Colombia. Extra-institutional biopsies were excluded. Demographic, clinical and paraclinical characteristics were analyzed. The satisfactory result was defined as obtaining a sufficient sample without the presence of artifices that can prevent the pathologist from confirming the diagnosis. Additionally, diameter and depth of samples were reported. Results: 98 records were included. In 70.4% of the cases biopsy was taken with gouge. The diameter of the sample with gouge was slightly larger (3.2 mm vs 2.8 mm [p=0.16]). The frequency of satisfactory results was similar in those who used gouge (94.2%) or other instruments (93.1%). However, the biopsies with satisfactory results were of greater diameter and depth. Discussion and conclusions: No differences were observed in the frequency of satisfactory results according to the type of instruments, probably the quality of the sample is operator dependent. To increase the probability of a satisfactory result, it is suggested to have a sample with a diameter greater than three mm and at least two mm deep.

revista de la asociación colombiana de dermatología y cirugía dermatológica/revista de la asociacion colombiana de dermatologia y cirugia dermatologica

Biopsia de mucosa nasal: descripción de técnicas y comparación de los resultados con gubia versus otros instrumentos en un hospital de referencia