Surgical Esophageal Diseases Flashcards
is a false diverticulum; only the mucosa and submucosa herniate through the muscularis externa. This happens over the cricopharyngeus muscle, which acts as a shelf over which the sac hangs. When the patient swallows in an upright position, some food is trapped in the diverticulum.
Zenker
is the failure of the lower esophageal sphincter (LES) to relax adequately AND weakened or absent peristalsis in the body of the esophagus during swallowing.
Achalasia
ll achalasia types are caused by the loss of neurons in the _______________.
myenteric plexus, Generally, these neurons relax sphincters and coordinate peristalsis (contraction of smooth muscle, not sphincters).
What will the barrium swallow test in achalasia show?
A barium swallow will reveal a “bird’s beak” appearance—aperistaltic distal esophagus causes dilation (the bird) and a hypercontractile LES causes a fixed and narrow lumen (the beak).
are invaginations of the mucosa and submucosa of the esophagus into its lumen.
Webs (eccentric) and rings (concentric) are invaginations of the mucosa and submucosa of the esophagus into its lumen.
How do we dx webs or rings in the esophagus?
Barrium swallow, confirm with endoscopy and biopsy
How do we tx esophageal webs and rings?
They are treated with pneumatic dilation, the biopsy is done to rule out underlying malignancy, and surgery is almost never indicated.
Schatzki’s ring
is a lower esophageal ring present at the GE junction. The ring is concentric (equal all around) and contains the squamocolumnar transition zone—where the epithelium changes from that of the esophagus (stratified squamous) to that of the stomach (simple columnar that invaginates into its lamina propria to form gastric glands).
is a lower esophageal ring present at the GE junction. The ring is concentric (equal all around) and contains the squamocolumnar transition zone—where the epithelium changes from that of the esophagus (stratified squamous) to that of the stomach (simple columnar that invaginates into its lamina propria to form gastric glands).
Schatzki’s ring
A condition characterized by the triad of dysphagia, upper esophageal webs, and iron deficiency anemia. Associated with glossitis and increased risk of esophageal squamous cell carcinoma. Most commonly presents in white women 40-70 years of age.
Plummer Vinson syndrome
A superficial (mucosal and/or submucosal) esophageal tear, usually at the GE junction, that occurs after forceful vomiting. This causes bleeding from the small arteries in the submucosa. It will present as bright red emesis that resolves spontaneously
Mallory Weiss Tear
is a full-thickness tear through all layers of the esophagus. It is most often iatrogenic (due to EGD or dilation) but can be caused by foreign objects (fish bone), retching repeatedly (Boerhaave’s syndrome), or cancer.
Esophageal perforation
A transmural rupture of the distal esophagus as a result of a sudden increase in intraesophageal pressure. Usually caused by severe retching or vomiting (e.g., due to excessive alcohol consumption). Manifestations include severe, retrosternal chest pain and mediastinal and/or subcutaneous emphysema.
Boerhaave syndrome (spontaneous esophageal rupture)
How do patients w/esophageal rupture tend to present?
Air, food, and oropharyngeal bacteria enter the mediastinum. The patient will be acutely ill, presenting with fever, leukocytosis, and air in the mediastinum—visualized on X-ray, auscultated as a crunching sound with each heartbeat (Hamman’s crunch), or felt as subcutaneous emphysema (“Rice Krispies” under the skin).
What is the difference in dysphagia from achalasia vs cancer?
Cancer= solids first
Other= liquids first