carcinoid Flashcards
what do carcinoid yumors secrete ?
seretonin
what are the clinical effects of seretonin?
diarrhea
flushing
valvular heart disease (right sided) fibroblast growths
symptoms of altered tryptophan metabolism
what organs are responsible for the metabolization of serotonin?
liver and the lung
so no carcinoid unless metastatic to the liver
what does a tryptophan deficiency cause ?
Niacin B3 deficiency
which presents with pellagra
how can a diagnosis of seretonin syndrome ?
5HIAA which appears in urine
24 hour urine sample diagnosis
what is the cause of carcinoid heart disease ?
fibrous deposits in the tricuspid or pulmonic valves
what is the classic scenario of carcinoid syndrome ?
abdominal pain
flushing
diarrhea
right sided heart valve problems
what is the treatment for carcinoid syndrome ?
surgical excision
hepatic resection
octeotride
what is octreotide ?
analogue of somatostatin