Week 3 Flashcards
What is agenesis?
Absence of one or both kidneys
What is hypoplasia?
Small kidneys but normaly development
What is a horseshoe kidney?
Fusion at either pole, usually lower
What long term clinical condition can lead to secondary cystic disease?
Native kidneys in long term dialysis
What disease is rare and causes terminal renal failure?
Infantile type polycystic disease
What inheritance is infantile polycystic kidney disease?
Autosomal recessive
In infantile type polycystic disease - how would you describe the kidneys?
Bilateral renal enlargement, elongated cysts - dilatation of medullary collecting ducts
What is infantile polycystic kidney disease associated with?
Congenital Hepatic Fibrosis
What inheritance is adult polycystic disease?
Autosomal dominant
What is the most common defect in adult polycystic disease?
Chromosome 16 in 90% - type 1
What is the second most common defect in adult polycystic disease?
Chromosome 4 - type II
Give four presentation features of a patient with adult polycystic disease?
- Abdominal mass
- Haematuria
- Hypertension
- CRF
Give two descriptive features of adult polycystic disease?
- Massive bilateral renal enlargement > 1kg
2. Multiple cysts of varying size > distortion of reniform shape, cysts arise in any part of nephron
What is adult polycystic disease associated with?
Berry aneurysms in circle of Willis which predisposes to subarachnoid haemorrhage
Name a benign tumour: common, medullary origin, white nodules
Fibroma
Name a benign tumour: yellowish nodules, less than two centimetres and cortical
Adenoma
Name a benign tumour: a mixture of fat, muscle and blood vessels. can be multiple and bilateral?
Angiomyolipoma
What is angiomyolipoma (benign tumour) associated with?
Tuberous scerosis
What benign tumour causes increased renin production, which in turn causes secondary hypertension?
JGCT
What is the commonest malignant renal tumour in children?
Nephroblastoma (Wilms tumour)
What malignant renal tumour presents with abdominal mass and arises from residual primitive renal tissue?
Nephroblastoma
What maignant renal tumours occur in the renal pelvis and calyces?
Urothelial carcinomas
What malignant renal tumour arises from renal tubular epithelium?
Renacl cell carcinoma
What is the other term for a renal cell carcinoma?
Clear cell
What is the commonest primary renal tumour in adults?
Renal cell carcinoma 55-60 years, m:f is 2:1
What three things does a patient with RCC present with?
- Abdominal mass
- Haematuria
- Flank pain
Give two paraneoplastic manifestations of RCC?
- Polycythaemia, erythropoietic stimulating substance (raised red cell count)
- Hypercalcaemia
How would you describe a renal cell carcinoma?
Large, well circumscribed mass centred on cortex.
Yellow, with solid, cystic, necrotic and haemorrhagic areas.
Where can RCC commonly extend to?
Renal vein and then to vena cava to right atrium
Where can RCC blood born spread to?
Lungs and bone
What are clear cell type RCC (commonest) rich in?
Glycogen and lipid
Where does transitonal epithelium run to and from?
From pelvicalyceal system to urethra
What are 90% of bladder tumours?
Transitional cell carcinomas, common, > 50 years
Name 5 risk factors for transitional cell carcinomas (bladder cancer)?
- Dye industry
- Rubber industry
- Analgesics
- Schistosomiasis
- Smoking
Where do 75% of transitional cell carcinomas occur?
In trigone - ureteric obstruction
In TCC what can be said about the papillae?
Thicker lining than normal urothelium