Tonsillectomy Under the Microscope: Is Routine Histopathological Analysis Necessary?

Abstract

Introduction Tonsillectomy is the most common surgery in otorhinolaryngology worldwide, with many indications in adults and children. Traditionally, all tonsillectomy specimens are routinely submitted for histopathological examination, even in the absence of clinical suspicion of malignancy. This practice has been debated due to its resource implications and the low yield of malignancy in routine cases. In this study, we aim to determine the prevalence of occult malignancy in our population and assess the necessity of histopathology examination after routine tonsillectomies. Methodology This retrospective chart review was conducted on patients who underwent tonsillectomy between January 2018 and December 2019 at a single tertiary care center. The patients were divided into two groups: those undergoing routine tonsillectomy without clinical suspicion of malignancy and those with suspected malignancy based on preoperative evaluation. Results A total of 1857 tonsillectomy cases were analyzed, comprising 1839 routine cases with no suspicion of malignancy and 18 cases where malignancy was suspected. Among the routine cases, 1609 (87.5%) were pediatric patients, and 230 (12.5%) were adult patients. All cases in the suspected malignancy group were adults. In the routine tonsillectomy group, recurrent tonsillitis was the most common indication for surgery, observed in 821 (51.1%) pediatric patients and 160 (69.6%) adult patients. Reactive lymphoid hyperplasia was the most common histopathological finding, present in 1589 (98.8%) pediatric cases and 187 (81.3%) adult cases. No unexpected malignancies were identified in the routine tonsillectomy group (0%). In the suspected malignancy group, reactive lymphoid hyperplasia was identified in 13 cases (72.2%), lymphoma in four cases (22.2%), and squamous cell carcinoma (SCC) in one case (5.6%). All patients diagnosed with lymphoma presented with visible tonsillar lesions and palpable neck lymph nodes, three (75%) exhibited tonsillar asymmetry, and two (50%) reported weight loss. The single patient with SCC had asymmetrical tonsils, a visible tonsillar lesion, and palpable neck lymph nodesand experienced weight loss. Conclusion The study findings demonstrated no cases of unexpected malignancy in routine tonsillectomy specimens, reinforcing the argument that routine histopathological examination may not be necessaryin the absence ofclinical suspicion of malignancy. These results, along with considerations of cost-effectiveness and resource optimization, suggest that histopathological analysis maybe reserved only for cases with clinical indicators of malignancy.