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Vol. 101. Issue 10.
Pages 701-707 (October 2023)
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Vol. 101. Issue 10.
Pages 701-707 (October 2023)
Original article
Is ultrasonography accurate for the diagnosis of gallbladder polyps? A review of cholecystectomy specimens from patients diagnosed with gallbladder polyps over a 14-years period
¿Es precisa la ecografía para el diagnóstico de pólipos vesiculares? Revisión de las piezas de colecistectomía de pacientes diagnosticados de pólipo vesicular durante un periodo de 14 años
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Anna González Costaa,
Corresponding author
agonzalezc@tauli.cat

Corresponding author.
, Victoria Lucas Guerreroa, María Nieves García Monfortea, Natalia Bejarano Gonzáleza, Andreu Romaguera Monzonísa, Beatriz Consola Marotob, Francisco G. Borobiaa
a Unidad de Cirugía Hepato-Bilio-Pancreática, Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario Parc Taulí, Sabadell, Barcelona, Spain
b Servicio de Radiología, Hospital Universitario Parc Taulí, Sabadell, Barcelona, Spain
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Tables (2)
Table 1. Differential diagnosis of main gallbladder lesions.
Table 2. Histopathological diagnosis of polyps diagnosed by ultrasound.
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Abstract
Introduction

Incidence of gallbladder polyps is 0,3–12%. It is important to differentiate pseudopolyps (cholesterol polyps, adenomyomatosis, inflammatory polyps), which do not have the capacity to become malignant, from true polyps (adenomas and adenocarcinomas). The main risk factors for malignancy are >6−10 mm, growth, sessile morphology, Indian ethnicity and primary sclerosing cholangitis. Ultrasound is the gold standard for diagnosis. Most polyps diagnosed by ultrasound are pseudopolyps. The main objective of this study is to analyse whether ultrasound is accurate for diagnosing true polyps in patients undergoing surgery for this reason.

Methods

Retrospective observational study with prospective data entry of patients undergoing elective cholecystectomy for gallbladder polyps from 2007 to 2021. Surgery was indicated in symptomatic patients and in those with risk factors. The study has been approved by the Clinical Research Ethics Committee of our hospital.

Results

We included 124 patients in our study. An elective laparoscopic cholecystectomy was performed in all of them. The mean age was 55,4 years and 61% were women. Of all patients, 65% were symptomatic at diagnosis. Only 3 patients had true polyps (2,4%). All of them were tubular adenomas. The rest of patients were false positives (97,6%). The adenoma size was 11, 6 and 5 mm, respectively. The surgical indication was due to polyp size or due to associated biliary symptoms.

Conclusion

Ultrasonography is not accurate for the diagnosis of gallbladder polyps. Validation of other complementary tests for the diagnosis of gallbladder polyps in asymptomatic patients could be relevant to avoid unnecessary surgeries.

Keywords:
Gallbladder polyp
Ultrasound
Cholecystectomy
Accuracy
Utility
Resumen
Introducción

La incidencia de pólipos vesiculares es del 0,3–12%. Es importante diferenciar los pseudopólipos (pólipos de colesterol, adenomiomatosis o pólipos inflamatorios) de los pólipos verdaderos (adenomas y adenocarcinomas). Los principales factores de riesgo de malignización son el tamaño superior a 6−10 mm, crecimiento rápido del mismo, morfología sésil, etnia india y colangitis esclerosante primaria. La ecografía es el gold standard para su diagnóstico. Sin embargo, la mayoría de los pólipos diagnosticados por ecografía son pseudopólipos. El objetivo del estudio es analizar si la ecografía es precisa para diagnosticar los pólipos verdaderos en los pacientes cuya indicación quirúrgica ha sido este diagnóstico ecográfico.

Material y métodos

Estudio observacional retrospectivo de los pacientes intervenidos en nuestro centro, desde el año 2007 al 2019, de colecistectomía electiva por presentar pólipos vesiculares. La cirugía se indicó en pacientes sintomáticos y/o con factores de riesgo.

Resultados

Se han incluido 124 pacientes. En todos ellos se ha realizado colecistectomía laparoscópica. La edad media fue de 55,4 años y el 61% eran mujeres. El 65% tenían síntomas biliares. En nuestro estudio, 3 pacientes presentaron pólipos verdaderos (2,4%). Todos ellos, fueron adenomas tubulares. El resto de los pacientes resultaron falsos positivos (97,6%). El tamaño de los adenomas fue de 11, 6 y 5 mm. La cirugía se indicó por tamaño o por clínica asociada.

Conclusiones

La ecografía no es precisa para el diagnóstico de pólipos vesiculares verdaderos. La validación de otras pruebas complementarias para el diagnóstico de pólipos en pacientes asintomáticos podría ser relevante para evitar cirugías innecesarias.

Palabras clave:
Pólipo de vesícula
Ecografía
Colecistectomía
Precisión
Utilidad

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