Adrenals Flashcards

0
Q

Lt adrenal tumor will displace the left kidney ___

A

Inferiorly

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1
Q

Rt adrenal tumor will displace the IVC __

A

Anteriorly

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2
Q

A rt adrenal tumor will displace the rt kidney

A

Inferiorly

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3
Q

A lt adrenal tumor will displace the splenic vein ___

A

Anteriorly

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4
Q

A rt adrenal tumor will displace the rt renal vein ____

A

Anterior

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5
Q

Panc tail will displace the left adrenal ___

A

Posterior

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6
Q

What 3 arteries perfuse the adrenal glands

A

supra renal branch of inferior phrenic artery, supra renal branch of the aorta, and supra renal branch of the renal artery

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7
Q

The rt supra renal vein drains into

A

IVC

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8
Q

Lt supra renal vein drains into

A

left renal vein and then the IVC

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9
Q

Phenochromocytoma

A

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.

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10
Q

Medulla secretes

A

Catecholamines which secrete epinephrine and norepinephrine

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11
Q

What 4 criteria define a non functioning cortical Adenoma

A
  1. A unilateral mass
  2. No history of malignancy elsewhere
  3. No biochemical evidence of adrenal hyperfunctioning
  4. Adrenal mass < 3 cm in diam
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12
Q

3 most common primary mets to adrenal

A

Lung, breast, and melanoma

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13
Q

Adrenal myelolipoma

A

Echogenic mass with propagation speed artifact

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14
Q

2 tumors that arise from medulla

A

Phenochromocytoma and neuroblastoma

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15
Q

Adrenals located in the

A

Anterior pararenal space

16
Q

Adrenal gland

A

2 endocrine glands

Cortex and Medulla

17
Q

Right adrenal pyramid lies ____ to IVC, ____ to rt liver lobe, ____ to diaphragm, and _____ to kidney

A

Post/lat to IVC
Medial to right liver lobe
Lateral to diaphragm
Sup to ant kidney

18
Q

Right adrenal shape

A

Upside down Y or V shape

19
Q

Left adrenal shape

A

Crescent shape or triangular

20
Q

Left adrenal lies ____ to lesser sac, ____ to pancreas, ____ to kidney, ____ to diaphragm

A

Posterior to lesser sac
Post/lat to panc
Ant/medial to kid
Post on diaphragm

21
Q

Blood supply

A

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

22
Q

Cortex

A
Secretes steroids
medullocorticoid, menurolocorticoid: regulates electrolytes and secretes aldosterone)
Glutocorticoids
Cortizone
Hydrocortizone
Androgen
Estrogen
23
Q

Medulla

A

Secretes catecholamines

Epinephrine, norepinephrine

Fight or flight response

24
Addisons Disease (adrenocortical hypo functioning)
Chronic primary hypoadrenalism, atrophic gland Dec cortisol Skin color changes, sodium & potassium retention, Renal impairment, dec blood volume, sugar, lipids, fatigue, weak, hypotension, GI distress Enlg adrenal with possible necrosis Steroid therapy treatment
25
Adrenogenital syndrome | Adrenal hyperplasia
Inc sex hormones, develop male characteristics muscle hair Excess androgen production, ambiguous genitalia,
26
Conn's Syndrome (hyperaldosteronism)
Primary hyperaldosteronism, excessive secretion of aldosterone ``` Hypernatremia (inc sodium), hypokalemia (dec potassium), Water retention HTN*** Muscle weak, cramps Altered renal function ``` Hyper aldosterone
27
Cushing's Syndrome (adrenocortical hyperfunctioning)
Hyperadrenalism Hypercorticolism Inc glucose production Protruding abdomen, poor wound healing, prone to infection, thin skin bruise easy, moon face, buffalo hump Upper body obesity, round moonface, inc fat around neck = buffalo bump, thinning of arms & legs Osteoporosis, hyper pigmentation, htn, virilization
28
Waterhouse Friderichsen Syndrome / acute hypoadrenalism
Massive destruction of gland
29
Hemorrhage
MC in newborns bc large adrenal and inc vascularity From hypoxia Hemorrhage and liquefaction Anechoic(older) to Echogenic, ca+
30
Adenoma
Common, associate with MENs Syndrome. Don't secrete hormones.
31
Myelolipoma
Rare benign. Don't secret hormones. Hyperechoic, propagation speed error
32
Cortical carcinoma
Rare Usually steroid producing Nonsteroid producing is highly malignant Encapsulated, variable echotexture, ca+ Invasion to adrenal vein, ivc, lymph nodes
33
Mets
4th mc site for mets Lung, breast, kidney, bronchial, lymphoma, melanoma, GI, thyroid, pancreas More than half bilateral
34
Pheochromocytoma
Arises from medulla Highly vascular, HTN patients, usually benign, solitary right sided. Assoc with MENs Syndrome HTN, headache, sweat, pallor, tachycardia, inc metabolism, palpitations, excessive perspiration Inc catecholamine, and metabolites. Secretes catecholamine, dopamine, norepinephrine, epinephrine
35
Rule of 10 pheochromocytoma
``` 10% extra adrenal 10% malignant 10% bilateral 10% familial 10% not assoc with HTN ```
36
Neuroblastoma
MC adrenal tumor in pediatrics Neural crest origin 1/2 occur in 1st year of life Rare after 8 years Arises from medulla Palp mass, abd protrusion, fever, wt loss, pallor, loss of energy, HTN, inc catecholamine 75% with mets Highly echogenic, poorly defined borders, ca+, necrosis, hemorrhage Mass presses down on kidney
37
Adrenal size
Length 3-5 cm Width 2-3 cm Thick 1 cm