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Cirugía Española (English Edition) Prevalence and clinical significance of appendiceal diverticulosis: An 11-year r...
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Available online 11 December 2025
Prevalence and clinical significance of appendiceal diverticulosis: An 11-year retrospective study
Prevalencia y significancia clínica de la diverticulosis apendicular: Estudio retrospectivo de 11 años
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Ramazan Serdar Arslana,
, Resad Beyoglub, Yavuz Savas Kocac, Ahmet Emre Yenipazard
a Department of General Surgery, Alanya Alaaddin Keykubat University Faculty of Medicine, Training and Research Hospital, 07400 Antalya, Turkey
b Department of Emergency Medicine, Bandirma Onyedi Eylul University, Faculty of Medicine, Balikesir, 10200, Turkey
c Servergazi State Hospital, Department of General Surgery, Denizli, 20040, Turkey
d Servergazi State Hospital, Department of Pathology, Denizli, 20040, Turkey
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Table 1. Demographic and clinical characteristics of patients with appendiceal diverticulitis (n = 19).
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Table 2. Comparative analysis of patients with appendiceal diverticulitis (AD) and classical acute appendicitis (CAA).
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Table 3. The morphological classification of diverticular disease in the appendix.20
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Abstract
Background

Appendiceal diverticulosis is a rare and often underdiagnosed entity with significant clinical implications. Limited data are available regarding its incidence, clinicopathological features, and optimal management strategies.

Methods

We retrospectively reviewed 6836 appendectomy specimens at our institution between January 2013 and December 2024. Cases diagnosed with appendiceal diverticulosis were identified, and their demographic, clinical, radiological, and pathological data were analyzed. The incidence, presentation, complications, and association with neoplasms were assessed.

Results

Nineteen cases (0.27%) of appendiceal diverticulosis were identified, with a male predominance (68.4%) and a mean age of 49.7 ± 16.8 years. Preoperative diagnosis of AD was challenging; ultrasonography and computed tomography often failed to differentiate AD from conventional appendicitis. The perforation rate in AD cases was 26.3%, significantly higher than typical appendicitis. Neoplastic lesions were observed in 10.5% of AD specimens, although no malignancies were detected during the follow-up period. All patients underwent appendectomy, including those with incidentally discovered AD.

Conclusions

Appendiceal diverticulosis is a rare but clinically significant condition associated with increased risk of perforation and potential neoplastic transformation. Early surgical intervention is recommended for all cases, including incidental findings, to prevent complications. Our findings contribute to the limited body of literature on AD and highlight the importance of routine histopathological examination of appendectomy specimens.

Keywords:
Appendiceal diverticulosis
Appendectomy
Perforation
Neoplasia
Retrospective study
Resumen
Introducción

La diverticulosis apendicular (DA) es una entidad rara y a menudo infradiagnosticada, con importantes implicaciones clínicas. Existen datos limitados sobre su incidencia, características clinicopatológicas y estrategias óptimas de manejo.

Métodos

Se revisaron retrospectivamente 6836 especímenes de apendicectomía en nuestra institución entre enero de 2013 y diciembre de 2024. Se identificaron los casos diagnosticados con DA y se analizaron sus datos demográficos, clínicos, radiológicos y patológicos. Se evaluaron la incidencia, presentación, complicaciones y asociación con neoplasias.

Resultados

Se identificaron diecinueve casos (0.27%) de DA, con predominio masculino (68.4%) y una edad media de 49.7 ± 16.8 años. El diagnóstico preoperatorio fue difícil, ya que la ecografía y la tomografía computarizada a menudo no lograron diferenciar la DA de la apendicitis convencional. La tasa de perforación en los casos de DA fue del 26.3%, significativamente mayor que en la apendicitis aguda clásica. Se observaron lesiones neoplásicas en el 10.5% de los especímenes de DA, aunque no se detectaron malignidades durante el seguimiento. Todos los pacientes se sometieron a apendicectomía, incluidos aquellos con DA descubierta incidentalmente.

Conclusiones

La diverticulosis apendicular es una condición rara pero clínicamente relevante, asociada con un mayor riesgo de perforación y posible transformación neoplásica. Se recomienda la intervención quirúrgica temprana en todos los casos, incluidos los hallazgos incidentales, para prevenir complicaciones. Nuestros hallazgos contribuyen a la limitada literatura sobre la DA y destacan la importancia del examen histopatológico rutinario de los especímenes de apendicectomía.

Palabras clave:
Diverticulosis apendicular
Apendicectomía
Perforación
Neoplasia
Estudio retrospectivo
Graphical abstract

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