Adrenals Flashcards
Lt adrenal tumor will displace the left kidney ___
Inferiorly
Rt adrenal tumor will displace the IVC __
Anteriorly
A rt adrenal tumor will displace the rt kidney
Inferiorly
A lt adrenal tumor will displace the splenic vein ___
Anteriorly
A rt adrenal tumor will displace the rt renal vein ____
Anterior
Panc tail will displace the left adrenal ___
Posterior
What 3 arteries perfuse the adrenal glands
supra renal branch of inferior phrenic artery, supra renal branch of the aorta, and supra renal branch of the renal artery
The rt supra renal vein drains into
IVC
Lt supra renal vein drains into
left renal vein and then the IVC
Phenochromocytoma
In the adrenal medulla, organ of Zuckerkandl (near aortic bif), paravertebral sympathetic ganglia
Cause hypersecretions of catecholamines; dopamine, norepinephrine, and epinephrine.
Symptoms: headaches, palpitations, excessive perspiration.
Medulla secretes
Catecholamines which secrete epinephrine and norepinephrine
What 4 criteria define a non functioning cortical Adenoma
- A unilateral mass
- No history of malignancy elsewhere
- No biochemical evidence of adrenal hyperfunctioning
- Adrenal mass < 3 cm in diam
3 most common primary mets to adrenal
Lung, breast, and melanoma
Adrenal myelolipoma
Echogenic mass with propagation speed artifact
2 tumors that arise from medulla
Phenochromocytoma and neuroblastoma
Adrenals located in the
Anterior pararenal space
Adrenal gland
2 endocrine glands
Cortex and Medulla
Right adrenal pyramid lies ____ to IVC, ____ to rt liver lobe, ____ to diaphragm, and _____ to kidney
Post/lat to IVC
Medial to right liver lobe
Lateral to diaphragm
Sup to ant kidney
Right adrenal shape
Upside down Y or V shape
Left adrenal shape
Crescent shape or triangular
Left adrenal lies ____ to lesser sac, ____ to pancreas, ____ to kidney, ____ to diaphragm
Posterior to lesser sac
Post/lat to panc
Ant/medial to kid
Post on diaphragm
Blood supply
Suprarenal branch of inferior phrenic art
Suprarenal branch of Aorta
Suprarenal branch of Renal artery
Right supra renal vein empties into IVC
Left suprarenal vein empties into left renal vein
Cortex
Secretes steroids medullocorticoid, menurolocorticoid: regulates electrolytes and secretes aldosterone) Glutocorticoids Cortizone Hydrocortizone Androgen Estrogen
Medulla
Secretes catecholamines
Epinephrine, norepinephrine
Fight or flight response