Urinary System Pathology Flashcards Preview

RUSVM Pathology II > Urinary System Pathology > Flashcards

Flashcards in Urinary System Pathology Deck (170)
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1

Renal Parenchyma is divided into

Cortex

Medulla

Pelvis

2

Descirbe the flow through the kidney

Renal papilla → renal calices → renal pelvis → ureters

3

Describe the cat kidney

Prominant Vascular Pattern

Unipyramidal

4

Describe the pig kidney

Multipyramidal 

No External Lobulation

5

Describe the bovine kidney

Multipyramidal

External Lobulation

6

Describe the dog kidney

Unipyramidal

7

Structure of gomerulus

Filtering mechanism

8

Structure of tubules

Selective reabsorption

9

Functions of the kidney

Regulation of fluid and electrolyte content

Endocrine function - renin and erythropoietin

10

Developmental abnormalities of the kidney

Renal aplasia

Renal hypoplasia

Renal dysplasia

Renal cysts

Polycystic kidney

Ectopic kidney

Fetal lobulation and fusion

11

Renal Aplasia

Absence of development of a kidney - can be unilateral or bilateral

12

Renal Hypoplasia

Quantitative defect caused by reduced mass of metanephric blastema - reduced in size but otherwise normal architecture

13

Renal hypoplasia is characterized by

Reduced number of histologically normal lobules and calyces

14

Differential diagnosis of renal hypoplasia

Renal dysplasia

 

15

Renal Dysplasia

Abnormal and asynchronous differentiation of renal tissue

16

Causes of renal dysplasia

Congenital infections (Feline Panleukopenia, Canine Herpes Virus, BVD)

Autosomal Dominance

Hypovitaminosis 

Intrauterine ureteral obstruction

17

Renal Cysts

Common congenital malformation

Variably sized, filled with fluid and lined by flat or cuboidal epithelium

18

Polycystic Kidneys

Numerous variably sized cysts in both cortex and medulla, filled with colorless fluid

"Honeycomb" appearance

19

Causes of polycystic kidneys

Congenital Causes

Inherited Causes

20

Consequences of renal cysts

May grow slowly or remain static

May increase in size/number causing compression atrophy

21

Differential diagnosis for Polycystic kidneys

Acquired Cysts - obstructed tubules in chronic renal disease

22

Ectopic Kidneys

Normal kidneys in abnormal locations

23

Ectopic kidneys are predisposing factors for 

Ureter obstruction and development of hydronephrosis

24

Retained Fetal Lobulation and Fusion

"Horseshoe Kidney"

Congential malformation that results from a fusion of the cranial or caudal poles of the kidneys

25

Described the texture of kidneys that have undergone autolysis

Soft and friable

26

Pseudomelanosis

Pigment staining the surface of the kidney

27

Postmortem changes seen in the kidney

Autolysis

Pseudomelanosis

28

Pigmentary disturbances seen in the kidney

Hemoglobinuria

Myoglobinuria

Lipofucin

Bile

29

Hemoglobinuria in kidney

Causes the kidney to be dark red to black

Consquence of sever intravascular hemolysis and hemoglobinuria

30

Etiologies for hemoglobin pigment in the kidney

Leptospirosis

Bacillary hemoglobinuria

Babesiosis

Chronic copper poisioning