Abdomen Flashcards
Foregut
Blood supply
Referred pain
Celiac artery
Epigastric
Midgut
Blood supply
Referred pain
SMA
umbilicus
Hindgut
Blood supply
Referred pain
IMA
Hypogastric
Compartment of the pharynx
Nasopharynx
Oropharynx
Laryngopharynx
Stratified squamous
Upper 1/3 striated
Mid 1/3 mixed
Lower 1/3 smooth muscle
Esoohagus
10 inches
18-25 cm
Muscular tube
Begins at cricoid (C6) and ends at esophageal hiatus (cardia)
Has cervical, thoracic and abdominal parts
Esophagus
Esophageal hiatus level
T10
Esophageal hiatus content
Esophagus
Left gastric artery and vein
Left and right vagus nerves
Lymphatics
Cervical esophagus blood supply
Inferior thyroid artery of
Thyrocervical trunk
Subclavian artery
Thoracic esophagus
Blood supply
Bronchial arteries
Aorta
Abdominal esophagus
Blood supply
Left gastric artery
Inferior phrenic artery
Constrictions of the Esophagus
Cervical constriction (UES) at cricoid cartilage
Bronchoaortic constriction
Diaphragmatic constriction (LES)
Hypertensive LES
Aperistalsis of Esophageal Body
Failure of LES to relax
Achalasia
Surgical tx for achalasia
Heller’s myotomy
+/- Partial fundoplication
Type 1
Esophageal Hernia
Sliding Hernia
GEJ at thorax
Hernia content GEJ
Type II
Esophageal hernia
Rolling/Paraesophageal Hernia
GEJ in abdomen
Hernia content in fundus
Type III
Esophageal Hernia
Mixed
Sliding and Paraesophageal
GEJ thorax
Hernia content GEJ + Stomach
Type IV
Esophageal Hernia
Mixed + another organ
most commonly spleen
Weak spot between inferior constrictor and cricopharyngeus
Killian’s triangle
Killian’s triangle is the most common site of
Zenker’s Diverticulum
Most common site of esophageal perforation
Killian’s triangle
Diagnosed by Barium swallow
Tx: 2 cm or less pharyngomyotomy
> 2cms Diverticulectomy
Diverticulopexy
Zenker’s Diverticulum
Most common esoohageal diverticulum
Zenker’s diverticulum
Between the transverse and oblique fibers
Pseudodiverticula
Zenker’s diverticulum
Typically arises in the mid esophagus
Includes mucosal, submucosal, and muscular layers of the esophagus
True diverticulum
From the pull of an adjacent mediastinal scar such as in granulomatous infection
Traction diverticula
Inadequate relaxation of either the upper or lower esophageal sphincter resulting in increased intraluminal pressure and subsequent herniation of the esophageal wall at an area of weakness
Pulsion diverticulum
Ex Zenker’s
False diverticula contains only
Submucosa
Mucosa
More common
Columnar lined epithelium of the esophagus rather than squamous epithelium
Hallmark of intestinal metaplasia is the presence of:
Barett’s esophagus
Goblet cell
May lead to ulcer, stricture formation and dysplasia and cancer
30 - 125x increased risk of developing adenocarcinoma
Barett’s esophagus
Most common presenting symptom
60% of esophageal lumen is infiltrated
Dysphagia
Others: stridor, cough, choking, aspiration pneumonia, bleeding, hoarseness, jaundice and bone pain
anorexia and weight loss
Esophageal cancer treatment with best chance for cure and provides effective palliation
Surgery
Trans-thoracic esophagectomy
Ivor-Lewis procedure
wider lymphadenectomy
Trans-hiatal esophagectomy
Orringer’s procedure
Avoids thoracotomy
Less morbidity
Linear laceration of esophagus
Common in alcoholics with history of forceful retching or vomiting
Mallory-Weiss Tear
Thin submucosal ring in the lower esophagus
Schatzki’s ring
Squamous Cell CA
Esophageal web
Atrophic glossitis
IDA
Plummer Vinson Syndrome
A true surgical emergency
Mostly follows a therapeutic or diagnostic procedure
Pain: striking and consistent symptom
Esophageal rupture
Spontaneous rupture of the esophagus
Usual history of resisting vomiting
High mortality due to misdiagnosis and delay in treatment
Usually occurs into the left pleural cavity or just above the gastroesophageal junction
Esophageal perforation
Quadrant lines
Transumbilical plane
Median plane
Duodenum lies above the
umbilicus
Bifurcation of the aorta
Iliac crest
Vertebral level?
Dermatomal level?
AOG?
L4
T10
20 weeks
Planes of the abdomen
Midclavicular
Subcostal
Transtubercular
3rd part of the duodenum
Origin of IMA
is on this plane at
the level of?
Subcostal plane
L3
Transtubercular plane is at vertebral level?
L5