GI Flashcards
What are the 2 labs needed for testing to screen for Celiac disease?
Anti-tissue transglutaminase (anti-tTG)
IgA antibody
(Patients with selective IgA deficiency may have false-negative results when tested for anti-tTG)
Painless, brisk GI bleed in otherwise active child
Diagnosis ? Mechanism ?
Meckel diverticulum
Caused by ectopic gastric tissue
Mechanism for Zollinger-Ellison syndrome
Symptoms? (3 main)
Increased production of gastric from a gastrinoma, causing multiple upper GI ulcers
Symptoms: abdominal pain, vomiting, melena
Condition developed during adolescence in patients diagnosed with cyclic vomiting syndrome during childhood?
Migraine headache
Typical age of onset of pyloric stenosis
3 weeks to 2 months
Typical age of onset of duodenal atresia
1st day of life
After discontinuing of breast milk, baby develops dry, scaling skin that evolves into vesiculobullous lesions on erythematous base - which can rupture and crust over.
What is diagnosis? Mechanism?
Acrodermatitis enteropathica
Mutation to a gene encoding for a transmembrane protein responsible for Zinc uptake → Zinc deficiency!
What are the components of VACTERL ?
Vertebral defects
Anal atresia
Cardiac defects
Tracheo-esophageal fistula (present with esophageal atresia)
Limb abnormalities
Gallbladder distention by sterile bile in a young child with prolonged fever and widespread rash
What is the gallbladder finding called? What is the diagnosis?
Gallbladder hydrops
The underlying etiology is Kawasaki disease
Patients with trisomy 21 have increased risk of which chronic GI problem?
Celiac disease
What are the components of te Allgrow syndrome? (3)
(The triple A)
Achalasia
Alacrima (reduced/no tears)
Adrenal insufficiency
What is the eye finding below? What is the associated diagnosis?
Kayser-Fleischer ring (the brown ring of copper deposition)
Associated with Wilson’s disease
Endoscopy w biopsy show short, flat villi with deepened crypts and lymphocytic infiltrates
What is the diagnosis ?
Celiac disease
Deeply pigmented, bluish brown to black spots on lips, buccal mucosa, and around mouth.
What is the diagnosis?
What are the most common symptoms? (3)
What are long term complications?
Puetz-Jeghers syndrome
Most common sx = colicky abdominal pain (intussusception), melena, hematemesis
Long term complication = risk of developing GI cancers, gonadal tumors, breast & cervical cancer
Contrast enema with a tapered obstruction at the rectosigmoid junction that has a bird-peak appearance.
Diagnosis?
Sigmoid volvulus
Abdominal U/S showing a mass with alternating areas of hyperechogenicity and hypoechogeniticity
What is the diagnosis ?
Intussussception
HIDA scan shows no drainage drainage from liver into intestine in an infant
What is the diagnosis ?
Biliary atresia
Multiple dilated air-filled loops of bowel (with or without air-fluid level) on KUB and U/S
+ finding of a cord separating the proximal and distal segments of jejunum
What is the diagnosis ? What is the risk factor ?
Jejunoileal atresia
Risk factor = maternal cocaine use
Where are the genetic defects of Gilbert syndrome & Cigler-Najjar ?
What type of hyperbilirubinemia associated with these conditions?
Mutations in the UGT1A1 (encoding UDP-glucuronosyltransferase, which conjugates bili)
Elevation of unconjugated bili (elevated total bili, ~normal d.bili)
What are red flags that require upper endoscopy in patients with GERD? (3)
Hematemesis
Weight loss
Dysphagia
(scope to diagnosis esophagitis)
Patient with ulcerative colitis p/w fatigue, puritus, elevated LFTs and GGT
What is the diagnosis ? What is the next step?
Primary sclerosing cholangitis
Get MRCP to confirm
What are the skeletal abnormalities seen in Shwachman-Diamond syndrome?
Abnormal development of growth plat and metaphyses