what happens during the digestive tract at the stomach
when your stomachbreaksdownfood it passes to the small intestine
Whipple procedure
removal of organs (pancreas and duodenum) which are then reconstructed and putback into the body to be betterequipped against cancer
BRCA 1 and BRCA 2
mutations that can promotepancreatic cancer
Common symptoms of pancreatic cancer
diabetes, abdominal and lowerback pain, jaundice, changes in urinecolor
treatment for pancreatic cancder
olaparib: PARPinhibitor (if mutations in BRCA 1 and/or BRCA 2), combinationtherapyFOLIRINOX (multiple chemodrugs working together)
why a tumor at the head of the pancreas can cause jaundice
anatomicallocation, its right by bileduct so if a tumor is blocking that it can cause jaundice
risk factors for colorectal cancer
over 50, obesity, inactivity, increased consumption of processed or redmeat, increase in dietshighinfat, decrease in fruits and veggies, decrease in fiber
polyp
growths that extend from the surface of the large intestine, most are benign but some can become malignant
How colorectal cancer is detected & at what age
screening age has decreased to 45, fecalimmunochemical test every year, stoolDNA test every 3 years, CT or sigmoidoscopy every 5 years, colonoscopy every 10 years
fecal occult blood test
detects blood in stools from a polyp
Colonoscopy
should have one every 10 years, sent home with "prep kit" that cleansoutcolon, long flexible rod to image/take samples from the colon, rod is about 6 ft long
tumor markers for colorectal cancer
look for biomarkers CEA and CA19-9, if they are high can suggest colorectal cancer
how colorectal cancer is treated
surgery (if cancer is contained) polypectomy: cutting out polyps, colectomy: removal of a piece of colon and resealed
Colostomy
If can't reseal (area of colon removed was too large to reseal) a bag will be inserted to catch fecal matter
resectable pancreatic tumors
tumors that often have not made their way to the circulatory system or lymphatics and will likely be able to be successfully surgicallyremoved
locally advanced tumors
have involvement of the circulatory system and/or lymphatic system that has high involvement of other organs before treatment; Surgery is often not an option
metastatic tumors
have spreadthroughout the body and cancer cells are detected in distant organs
borderline resectable tumors
tumors that have movedinto the circulatory system and/or lymphatics and involvement of other structures but may be operable and have success with surgery
common symptoms of pancreatic cancer
diabetes, jaundice, abdominal and lower back pain, changes in urinecolor
bile
is released from liver and gall bladder into small intestine, acts as detergent to emulsify fat (increases surfacearea for enzymes)
small intestine
primary site for chemicaldigestion, absorption of nutrients, large surface area for absorption with numerousfolds with villi (finger-like projections)
pancreas
releases sodiumbicarbonate and neutralizes the chyme; exocrine gland releases enzymes such as amylase lipase, proteases, nucleases which breakdown foodmolecules to monomers for absorption; location of insulin production; head is by the small intestine and the tail is by the spleen
type one diabetes
any age; caused by the immune system destroying beta cells that secrete insulin in pancreas, eventually eliminating insulinproduction from the body, people with little to no insulin cannot transport glucose to cells/cells cant absorb
type two diabetes
any age but most common in people over 40, the body isn't able to use insulin the right way (insulinresistance), cells are no longer sensitive to insulin and cannot take sugar, as it gets worse, the pancreas may make less and less insulin (insulindeficiency)
stages I, II, and III of pancreatic cancer
tumor has formed at the pancreas
stage II & III of pancreatic cancer
tumors may have regionalspread to lymph nodes
stage IV pancreatic cancer
metastases are detected at distant organs (e.g. liver)
sections of large intestine
cecum, colon, rectum:
digestive system
ingestion (food in mouth), to pharynx, esophagus, stomach, pyloricsphincter, small intestine, large intestine, appendix, colon, rectum anus
if colorectal cancer is already spread:
chemo: 5-fluorouracil that replaces uracil in RNA, targetedtherapies: cetuximab, bevacizumab, ipilimumab
functions of large intestine sections

cecum: absorbs fluids and salts, colon: absorbs water through osmosis, rectum: collects solidified matter and releases through anus