Stomach (Radiology)

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Stomach NAME: FIZZATIN NISHA BINTI MOHD UZIR

GOSIGAN SERVAI

GROUP: 32A


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Gross

Anatomy of

Stoma!


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" J-shaped muscular organ with lesser and greater curvatures.

- nearly vertical in tall people, and horizontal in short

people

- divided into four regions; • cardiac region (cardia) – small area within aout ! cm of the

cardiac ori"ce

• fundic region (fundus) – dome-shaped portion superior to

esophageal attachment

• ody (corpus) – ma#es up the greatest part of the stomach

• pyloric region – narrower pouch at the inferior end

– sudivided into the funnel-li#e antrum

– and narrower pyloric canal that terminatesat

pylorus

–pylorus – narrow passage to duodenum

- pyloric sphincter (gastroduodenal) – regulates the passage of

chyme into the duodenum


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• stomach is a muscular sac in upper leftadominal cavity immediately inferior to the

diaphragm– primarily functions as a food storage organdesigned to release $small volumes% intoduodenum

• internal volume of aout &' m when empty • .' – .& after a typical meal

• up to * when e+tremely full and e+tend nearly as

far as the pelvis

• ta#es appro+imately * hours to clear meal

• ntrum hold !' ml • ! ml of chyme released into duodenum per

contraction

• echanical digestion rea#s up olus, turnssolid food into a li/uid, and egins chemical

digestion of protein and fat


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• 0hemical digestion

– 1alivary amilase 2 deactivated y gastric acid – ingual and gastric lipase 2 activated y gastric acid

– 3astric 40l denatures protein

– 3astric 5epsinogen converted y gastric 40l into

active pepsin

• most digestion occurs after the chymepasses on to the small intestine


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Pat!o#o$%a# ofstoma!

Peptic Ulcer Disease

Gastric cancer


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Peptic ulcer disease(PUD)

6e"nition 7 5eptic ulcer disease refers to painful sores or ulcersin the lining of the stomach or "rst part of the small intestine,called the duodenum

n ulcer is the end result of an imalance etween digestive8uids in the stomach and duodenum. 9lcers can e caused y7

& Inf't%on (%t! a ty)' of *at'r%a a##'+ H'#%o*at'r )y#or% ,H- )y#or%.

& E/'ss a%+ )ro+0t%on from $astr%nomas1 t0mors of t!' a%+

)ro+0%n$ '##s of t!' stoma! t!at %nr'as's a%+ o0t)0t ,s''n %n

Zo##%n$'rE##%son syn+rom'.

n ulcer may or may not have symptoms. :hen symptoms occur,

they may include7 & A $na(%n$ or *0rn%n$ )a%n %n t!' m%++#' or 0))'r stoma! *'t(''n

m'a#s or at n%$!t

& B#oat%n$

& !'art*0rn

& na0s'a or om%t%n$


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Gastric cancer 1tomach cancer, also called gastric cancer, is a

malignant tumor arising from the lining of thestomach.

1tomach cancers are classi"ed according to the

type of tissue where they originate.


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4!at 5a0s's Stoma! 5an'r6


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Ty)' of+%a$nos%s


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U))'r 'n+oso)y

D0r%n$ t!%s t'st1 t!' +otor )ass's an 'n+oso)'1 (!%! %s a

t!%n1 '/%*#'1 #%$!t'+ t0*' (%t! a sma## %+'o am'ra on t!' 'n+1 +o(n yo0rt!roat- T!%s

#'ts t!' +otor s'' t!' #%n%n$ of yo0r 'so)!a$0s1 stoma!1 an+;rst )art of

t!' sma## %nt'st%n'- 4!'n s''n t!ro0$! an 'n+oso)'1 stoma! an'r an #oo8#%8' an

0#'r1 a m0s!rooms!a)'+ or )rotr0+%n$ mass1 or +%


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?maging tests

Ima$%n$ t'sts 0s' /rays1 ma$n't% ;'#+s1 so0n+ (a's1or

ra+%oat%' s0*stan's to r'at' )%t0r's of t!' %ns%+'of yo0r

*o+y- Ima$%n$ t'sts may *' +on' for a n0m*'r ofr'asons1

%n#0+%n$=

1. To help fnd out whether a suspicious area might be cancerous

2. To learn how ar cancer may have spread

3. To help determine i treatment has been eective

U))'r $astro%nt'st%na# ,GI. s'r%'s 5om)0t'+ tomo$ra)!y ,5T or 5AT. san

Ma$n't% r'sonan' %ma$%n$ ,MRI. san

Pos%tron 'm%ss%on tomo$ra)!y ,PET. san


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>THE

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Stomach (Radiology)

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