GI Flashcards
What view is best for a double contrast evaluation of the duodenum?
Left posterior oblique
What is the barium suispension for an upper GI?
250% W/V
In double contrast upper GI compression views of the duodenum are best in what view?
prone?
What is the dose threshold (rad) for radiation duodenitis?
5000 rad
What are the risk factors for cholangiocarcinoma?
PSC, recurrent pyogenic cholangitis, clonorchis senesis, HIV, HEP b/c, EtOH, thorotrast
Where is the A ring?
Above the vestibule
Where is the B ring
Below the vestibule at the EG junction.
What is defined as narrowing of the b-ring?
<13mm
What is the Z line
Squamocolumnar junction between esophageal and gastric epithelium.
Where is the location of zenker divertic?
posterior hypopharnyx
Where is the location of kilian-jamieson tic?
lateral in the cervical esphagus (inf to cricopharyngeus)
Where is the cricopharyngeus?
C5-C6
High esopheageal stricture and hiatal hernia is assoicated with that?
Barrets
“Ringed Esophagus”?
Eosinophilic esophagitis
What does “nissen” mean in fundoplycation?
360 wrap
Most common reason for recurrent reflux after nissen?
Slipped nissen
Most common reason for a slipped nissen?
Short esophagus
What is a short esophagus?
hiatal hernia which is fixed > 5cm
What is the length criteria for a slipped nissen?
length of narrowed esophagus > 2cm
What is the treatment for short esophagus?
collis gastroplasty
Classic history for squamous cell CA in esophagus
AA male, etoh abuse, lye injection with a stricture/ulcer/mass in mid esophagus
What is the DDX for stricutre/ulcer/mass in mid esophagus?
Caliac, achalsia, lye, tylosis, plumber vinson syndrome, nitroamine esposure
What is Tylosis
Howel-evans syndrome, Autodominante, hyperkeytosis of the palms and soles with assoication of esophegal cancer
What are the four assoications with plumber vinson syndrome?
dysphagia
iron-deficiency anaemia
weight loss
oesophageal webs or hypopharyngeal webs
What is the classic history and location of adenoCA in the esophagus?
White guy, PPI use, prior hx of barrets, stricture/ulcer/mass in lower esophagus
Difference between stage 3 and 4 esophegal ca?
3 within the adventitia, stage 5 invasion into adjacent strucutures
“Cord like excresenses into esophagus”?
Squamous Papillomotosis
Glycogenic Acanthosis: Who gets it? Mimics what? Cancer risk?
Asymptomatic elderly patients
Mimic of candidiasis
No risk of Ca
White nodules, no s/sx
Who is at risk for candidiasis of the esophagus?
HIV/Transplant (Immune compromised)
Achalasia/scleroderma (motility disorders)
What is the appearance of esophageal candidiasis
Vertically oriented along the long axis discrete plaque like lesions
Difference between CMV/HIV and Herpes ulcers
Herpes, small, muliple discrete upper/mid esophagus with a halo
CMV/HIV large flat ulcers
