Hirschsprung Disease
- Failure of Neural Crest Cell Migration
- Involves Rectum
- Lack of Auerbach and Meissner Plexus
- Chronic Constipation
- Failure to Pass Meconium
- Congenital Megacolon
- Increased Risk with Down Syndrome
- RET Mutations
Diverticulosis and Diverticulitis Assessment
- Outpouching
- Inflamed Diverticula
- Abdominal Pain
- Abdominal Distention
- Flatulence
- Fever
- Rectal Bleeding
- Alternating Constipation and Diarrhea
- Peritonitis
Diverticulosis and Diverticulitis Interventions
- High Fiber Diet
- Reduce Intra-abdominal Pressure
- Stool Softeners
- Exercise
- Anticholinergics
- Antibiotics
- Bowel Resection
Mesenteric Ischemia
- Severe Abdominal Pain
- Bloody Diarrhea
- Metabolic Acidosis
- Increased WBC
- Increased Lactate (Lactic Acid)
- X-ray
- Air Within Bowel Wall
- CT Angiography
- Bowel Wall Edema
- Antibiotics
- Emergent Surgical Intervention
Irritable Bowel Syndrome (IBS) Assessment
- Abdominal Pain
- Relieved by Defecation
- Alternating Diarrhea and Constipation
- Fatigue
- Excessive Flatulence
- Sensation of Incomplete Evacuation
- Stressors
- Food Intolerances
- More Common in Women
- Rule Out Other Disorders
Irritable Bowel Syndrome (IBS) Interventions
- Identify Triggers
- Increase Fiber Intake
- Probiotics
- Anticholinergics
- Tricyclic Antidepressants (TCAs)
- Loperamide
- Linaclotide
- Tegaserod (Zelnorm)
- Lubiprostone (Amitiza)
- Alosetron (Lotronex)
Turcot Syndrome
- Autosomal Dominant or Autosomal Recessive
- Colonic Polyposis + CNS Tumor
- Increased Risk of Colorectal Cancer
- Increased Risk of Brain Cancer
- Lynch Syndrome
- Glioblastoma Multiforme
- Familial Adenomatous Polyposis (FAP)
- Medulloblastoma
Gardner Syndrome
- Familial Adenomatous Polyposis (FAP) + Extraintestinal Benign Tumors
- Autosomal Dominant
- APC Gene Mutation
- Desmoid Tumors
- Nasal Angiofibromas
- Osteomas
- Congenital Hypertrophy of Retinal Pigment Epithelium
- Dental Abnormalities
- Cutaneous Lesions
- Adrenal Adenomas
- Thyroid Cancer
- Duodenal / Periampullary Cancer
- Pancreatic Cancer
- Hepatoblastoma
Peutz-Jeghers Syndrome
- Symptomatic Age: 10-30 Years
- LKB1/STK11 Gene Mutation
- Autosomal Dominant
- Benign GI Hamartomatous Polyps
- Mucocutaneous Hyperpigmentation
- Positive Family History
- Increased Risk of Colorectal Carcinoma
Colorectal Cancer Assessment
- 3rd Most Common Cancer
- Change in Bowel Habits
- Bowel Obstruction
- Rectal Bleeding
- Anemia
- Weight Loss
- Ascites
- Colonoscopy
- FOBT and FIT
Colorectal Cancer Interventions
- Surgical Colon Resection
- Radiation
- Chemotherapy
- Bowel Cleansing
- Screening
- Colostomy
- Dietary Consult
- Body Image
Lynch Syndrome (Hereditary Nonpolyposis Colorectal Cancer)
- Autosomal Dominant
- Defective DNA Mismatch Repair
- 80% Risk of Colon Cancer Development
- Proximal (Right) Colon
- Type II associated with Endometrial, Ovarian and Skin Cancers
- 3 Relatives with Colon Cancer
- Occurs Across 2 Generations
- 1 Relative Diagnosed < 50 Years Old
- Frequent Screening
- Colectomy
Volvulus Characteristics and Presentation
- Bowel Torsion
- Bowel Infarction
- Sigmoid Colon and Cecum
- Small Bowel Obstruction
- Abdominal Pain
- Unstable Vital Signs
- Peritonitis
Volvulus Diagnosis and Management
- Abdominal X-ray
- Coffee Bean Sign
- Kidney Bean Sign
- Abdominal CT Scan
- Whirl Sign
- Barium Enema
- Bird's Beak Sign
- Fluid Resuscitation
- Surgery
- Consider Antibiotics
Familial Adenomatous Polyposis
- Autosomal Dominant
- Mutation in Chromosome 5
- APC Gene Mutation
- Overexpression of Beta-catenin
- Two-Hit Hypothesis
- Change in Bowel Habits
- Colonic Polyps
- Colonoscopy
- Prophylactic Surgery
- Progresses to Colorectal Carcinoma
Juvenile Polyposis Syndrome
- Autosomal Dominant
- Children < 5 Years Old
- Hamartomatous Polyps in Gastrointestinal Tract
- GI Distress
- Anemia
- Increased Risk of Colorectal Carcinoma
Non-neoplastic Colonic Polyps
- Benign
- Hyperplastic Polyps
- Rectosigmoid
- Hamartomatous Polyps
- Peutz-Jeghers Syndrome
- Juvenile Polyposis Syndrome
- Inflammatory Pseudopolyps
- Inflammatory Bowel Disease
- Mucosal Polyps
- Submucosal Polyps
Neoplastic Colonic Polyps
- Malignant
- Adenomatous Polyps
- APC and KRAS Mutation
- Villous Type is more Malignant
- Serrated Polyps
- BRAF Mutation
- Saw-Tooth Pattern