Gastro Flashcards
Where do inguinal hernias occur?
Vs femoral hernias?
Inguinal = higher up, IN LINE WITH Inguinal ligament between anterior iliac spine and pubis
Femoral = BELOW inguinal ligament, LATERAL & INFERIOR to pubic tubercle
Out of femoral and inguinal hernias, which is more likely to strangulate?
Femoral hernia has much higher risk (only 50% patients aware of hernia before strangulation!)
Definition of peptic ulcer?
Break in mucosal lining of stomach or duodenum >5mm (smaller would be called erosions)
Most common stomach cancer?
Adenocarcinoma
What is Troisier’s sign?
Enlarged left supraclavicar node (Virchow’s node)
What is Courvoisier’s law?
In presence of palpable gallbladder, painless jaundice is unlikely to be caused by gallstones (more likely to be malignancy)
What is Claybrook sign?
Heart & breath sounds transmitted through abdo wall on auscultation - result of ruptured abdominal viscus
What is a Sister Mary Joseph nodule?
Rare nodule above umbilicus from abdominal/pelvic malignancy ie stomach
Where are Cullen’s & Grey Turner’s signs found and what are they a sign of?
Cullen’s - periumbilical
Grey Turner’s - flank (‘turn over’ to see)
Sign of retroperitoneal haemorrhage
Blumberg’s sign?
Rebound tenderness - indicates peritonitis (ie appendicitis)
Causes of pre-hepatic portal hypertension?
Things that block the portal vein before liver:
-congenital atresia/stenosis
-portal vein thrombosis
-splenic vein thrombosis
-extrinsic compression eg tumours
Causes of intrahepatic portal hypertension?
-Pre-sinusoidal - schistosomiasis, hepatic fibrosis, primary biliary cholangitis, sarcoidosis, hepatitis, toxins
-Sinusoidal - cirrhosis, alcoholic hepatitis, vit A intoxication, cytotoxic drugs
-post-sinusoidal - sinusoidal obstruction, veno-occlusive disease
Posthepatic causes of portal hypertension?
At level of heart ie constructive pericarditis, or hepatic vein ie Budd-Chiari syndrome, or IVC ie stenosis/thrombosis/tumour invasion
Most common cause of portal hypertension in western world? Vs African continent?
-Liver cirrhosis
-Africa = schistosomiasis
Prominent abdominal wall veins - difference between caput-medusae and IVC obstruction
Caput-Medusae - blood flow away from umbilicus (run away from the snake!)
IVC obstruction - blood flow towards umbilicus - may hear a ‘hum’
Drugs that cause pancreatitis?
Steroids
HIV drugs - pentamidine
Diuretics - furosemide
Chemotherapeutic agents
Oestrogen
3 different scores for severity of pancreatitis?
Glasgow
Ranson
APACHE
Woman with hx gallstones, severe RUQ pain after eating takeaway pizza. Apyrexial, not jaundiced. Likely Dx?
Biliary colic