Data collection and statistical analysis
We retrospectively evaluated patient charts, operation protocols and
pathological reports. Relevant data were collected: gender, age,
location of BCA (Robbin’s neck-level and side), tonsillectomy yes/no,
histopathological differentiation, duration of follow up and recurrence
of BCA. Nominal scale data was described with frequency, ratio scale
data over median and standard deviation. We performed a purely
descriptive data analysis using the software IBM SPSS Statistics 26.