abd

smooth membrane that lines abd cavity and covers organs

lines abd wall

covers organs

• closed cavity in male
• female have communication through uterine tubes, uterus, and vagina

a fold from pertioneum that attaches the small intestine, anchoring it to the posterior abd wall

general peritoneal cavity

• omental bursa
• stomach and spleen
• peritoneal recess posterior to stomach
• panc enzymes can eat into space

• communication btw greater and lesser sac
• small vertical opening
• inferior to liver, superior to duodenum

sling like double layer of peritoneum that from liver to lesser curve of stomach which suspends stomach from liver

• apron like fold of peritoneum that hangs from the freater curvature of the stomach
• fused with transverse colon and mesocolon
• profuse blood vessles

paired rectus abdominis muscles dilineated medially by linea alba

• external oblique
• internal oblique
• trasnversus abdominis

• accumulation of serous fluid in the peritoneal cavity
• first fills pouch of douglas
• then lateral paravesiclal recesses
• down paracolic gutter
• liver disease/cancers
• meigs syndrom- ascites ple eff (thecoma/fibroma)

look for loculation and internal echos for malignancy

• cavity formed by necrosis- pus
• fever, tenederness, infection, increased wbc (leukocytosis), sepsis- bacterial cultures
• gas filled- see air scattering

• portal system
• ascending choloangitis of common bile duct (most common us)
• hepatic artery- bacteremia
• direct extension from infection
• implantation of bact. after trauma to abd wall

extrahepatic loculated collections of bile from trauma or rupture of biliary tree

abcess that forms in renal parechyma

• embryologic
• traumatic/aquired
• neoplastic
• infective and degenerative origin

• incomplete regression of urachus during development
• ligament that runs from apex of bladder to umbilicus (median umbilical ligament)
• urachus- takes waste out of embryo

• encapsulated collection of urine
• closed renal injury or surgery

most common primary sites are pancreas, biliary tract, kidneys, testicles, uterus

middle age men exposed to asbestos

collection of fluid that occurs after surgery in pelvis, retroperitoneu. or recess cavities

looks like fluid collection

rectus sheath hematomas are acute or chronic colelction of blood luing within the rectus muscle or btw the muscle and sheath.

trauma, pregnancy, cardiovascular and degenerative muscle diseas, surgical injury, anticoagulation therapy, steroids, excersize

a collection of blood btw the bladder and LUS from lower uterine transverse c-section and bleeding from uterine vessles

• pervesicular space
• caused by disruption of inferior epigastric vessles or branches suring c-section

lipomas, desmoid tumors (benign fibrous neoplasm of aponuretic structures), mets

protrusion of peritoneal sac through defect in weakened abd wall

umbilical, femoral/inguinal rings

• can cause edema and strangulation of bowel- necrotic
• (sac, contents of sac, covering of sac)

• can be epigastric, and at rectus abdomonis
• valsalva manuever helps visualize it