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Videos de Conceptos Relacionados

Barrett Esophagus-I: Introduction01:21

Barrett Esophagus-I: Introduction

Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more similar...
Esophageal Strictures-I: Introduction01:30

Esophageal Strictures-I: Introduction

Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
Esophageal Achalasia01:27

Esophageal Achalasia

Esophageal achalasia is a chronic neurogenic disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent or ineffective peristalsis in the distal esophagus. This leads to a functional obstruction without a physical blockage, despite significant disruption of esophageal motility.EtiologyAchalasia is caused by degeneration of the myenteric (Auerbach's) plexus, specifically the loss of inhibitory ganglion cells that produce vasoactive intestinal peptide (VIP)...
Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...
Esophageal Strictures-II: Clinical Features and Management01:26

Esophageal Strictures-II: Clinical Features and Management

Patients with esophageal strictures often experience a range of symptoms. Initially, they may have difficulty swallowing solid foods, which can progress to include liquids. Additional symptoms may involve chest pain or discomfort, regurgitating food and fluids, heartburn, unintentional weight loss, coughing or choking during meals, and hoarseness.
Healthcare providers should gather a comprehensive medical history and conduct a physical examination for diagnosis. If esophageal stricture is...
Esophageal Perforation-II: Clinical Manifestations and Management01:28

Esophageal Perforation-II: Clinical Manifestations and Management

Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
Clinical Manifestations:

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Video Experimental Relacionado

Updated: May 14, 2026

Modeling Oral-Esophageal Squamous Cell Carcinoma in 3D Organoids
10:43

Modeling Oral-Esophageal Squamous Cell Carcinoma in 3D Organoids

Published on: December 23, 2022

El carcinoma esofágico es un carcinoma esofágico.

Arjun Pennathur1, Michael K Gibson, Blair A Jobe

  • 1Department of Cardiothoracic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.

Lancet (London, England)
|February 5, 2013
PubMed
Resumen

El carcinoma esofágico es un problema de salud mundial cada vez mayor. El diagnóstico temprano y los avances en el tratamiento son cruciales para mejorar las tasas de supervivencia de este desafiante cáncer.

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Área de la Ciencia:

  • Oncología Oncología.
  • Gastroenterología y Gastroenterología.
  • Epidemiología La epidemiología.

Sus antecedentes:

  • El carcinoma esofágico afecta a más de 450.000 personas en todo el mundo, con un aumento notable en la incidencia.
  • Mientras que el carcinoma de células escamosas es históricamente predominante, el adenocarcinoma es cada vez más frecuente en los países occidentales.
  • La tasa de supervivencia a 5 años para el carcinoma esofágico sigue siendo baja, entre el 15% y el 25%.

Objetivo del estudio:

  • Para proporcionar una visión general del carcinoma esofágico.
  • Para discutir la comprensión actual de la epidemiología, la fisiopatología y el diagnóstico.
  • Revisar las estrategias de manejo, prevención y nuevos avances en el tratamiento.

Principales métodos:

  • Revisión de la literatura y síntesis de las investigaciones actuales sobre el carcinoma esofágico.
  • Análisis de las tendencias epidemiológicas y datos de supervivencia.
  • Discusión de las modalidades de diagnóstico y los sistemas de estadificación.

Principales resultados:

  • Aumento de la incidencia global del carcinoma esofágico.
  • Tendencias cambiantes en los tipos histológicos, con un aumento del adenocarcinoma en las naciones occidentales.
  • El diagnóstico temprano se correlaciona significativamente con mejores resultados para los pacientes.

Conclusiones:

  • El carcinoma esofágico presenta un desafío significativo y creciente para la salud pública.
  • Es esencial un enfoque multidisciplinario que abarque la epidemiología, la fisiopatología, el diagnóstico y el tratamiento.
  • La investigación continua sobre los avances en la prevención y el tratamiento es fundamental para mejorar la supervivencia del paciente.