Overview Flashcards
Where are the kidneys located anatomically?
Retroperitoneal
Which muscles surround the kidneys?
Quadratus lumborum
Psoas major
In relation to the spine where do the kidneys lie
Right - L1 -L3
Left T12 -L2
Are the floating ribs anterior or posterior to the kidney?
Posterior
Where does renal lymph drain to?
Lumbar nodes
Where does ureter lymph drain?
Lumbar and iliac nodes
At what level do the ureters turn medially?
Ischial spine
What zone of the prostate is felt on DRE?
Peripheral
Name the three types of male urethra
- membranous
- prostatic
- spongy
Describe the male ejaculation pathway
Seminiferous tubules Epididymis Vas deferens Prostatic urethra Spongy urethra
What makes up the spermatic cord?
Purple dicks contribute to a good sex life Pampiniform plexus Ducutus deferens Cremasteric artery Testicular artery Artery of ductus deferens Genitofemoral nerve Sympathetics Lymphatics
What is the blood supply to the penis?
Internal pudendal artery
What is the lymph drainage of the penis?
Superficial inguinal
What is the lymphatic drainage of the testes?
Lumbar nodes around abdominal aorta
What cells line the prostate?
Columnar secretory epithelium
State the five stages of CKD
Stage 1 >90 Stage 2 60-89 Stage 3 30-59 Stage 4 15-29 Stage 5 <15 >3 months
What is the commonest cause of CKD?
Diabetes
What is uraemic frost?
Urea deposits from sweat crystallise on skin
Describe CKD management
ACEi/ARB
Renal replacement therapy
What are the complications of CKD?
Anaemia
Renal bone disease
How is CKD anaemia treated?
Optimise iron status
EPO weekly injection
How is renal bone disease managed?
Reduce phosphate and PTH
- phosphate binder
- vitamin D
Describe haemodialysis and the associated risks
3 sessions/week
requires a fistula in lower arm
Risks - infection, endocarditis, stenosis, hypotension, arrhythmia, thrombus, air embolus, steal syndrome, disequilibrium
Describe the two types of peritoneal dialysis
Continuous - drained every few hours
Automated - drained overnight
What immunosuppression is needed after a kidney transplant?
Ciclosporin/tacrolimus
Monoclonal antibody
MMF or sirolimus
What drug is given in acute transplant rejection?
Steroids
Name the three types of rejection of renal transplant
Hyperacute
Acute
Chronic
What will a biopsy of diabetic nephropathy look like?
Kimmelstein Wilson lesions - nodular glomerulosclerosis
What is the most common cause of chronic pyelonephritis?
Vesicle-ureteric reflux usually presents in childhood with recurrent infection
What causes renal artery stenosis?
Atherosclerosis
Fibromuscular dysplasia
How does renal artery stenosis present?
HTN, AKI, flash pulmonary oedema, CKD, renal bruit, different sized kidneys
How do you treat renal artery stenosis?
Statin
ACE inhibitor
Anti-platelet
What is the appearance of fibromuscular dysplasia on angiography?
String bean
How does endothelial or mesangial cell damage present?
Haematuria
How does podocyte damage present?
Proteinuria
Describe nephrotic syndrome
Proteinuria
Hypo-albuminaemia
Oedema
Describe nephritic syndrome
Oliguria
Haematuria - red cell casts
Hypertension
Describe IgA nephropathy
Most common
Haematuria in young males post URTI
HSP and coeliac
IgA and C3 deposits
How do you treat IgA nephropathy?
BP control - ACEi/ARB
Describe minimal change nephropathy
Children with nephrotic syndrome
T cell damage - podocytes
Podocyte fusion
How do you treat minimal change nephropathy ?
Steroids
Describe focal segmental glomuerulosclerosis
Young adults with nephrotic syndrome
Primary
Secondary - HIV, reflux/IgA, heroin, Alports, sickle cell
Sclerosis and complement
Describe membranous nephropathy
Adults with proteinuria and nephrotic
Anti-PlA2
Secondary - infection, malignancy, NSAIDs, systemic disease
Thick BM with sub-epithelial deposits
How is focal segmental glomerulosclerosis treated?
Steroids
Immunosuppression
50% ESRF
How is membranous nephropathy treated?
ACEi/ARB
Immunosuppression - steroids, mab, cyclophosphamide
30% ESRF
Describe rapidly progressive glomerulonephritis
Granular casts AKI
Nephritic syndrome
ANCA or goodpastures/SLE
How is RPG treated?
Immunosuppression
Plasmaphoresis
RRT
Describe post strep GN
Young children 7-14 days post strep
Immune complex deposition in glomeruli
Headache, malaise, haematuria, proteinuria, HTN, low C3
‘starry sky’
Which chromosomes are linked to polycystic kidney disease?
Autosomal dominant - 16 and 4
Recessive - 6
Describe autosomal dominant kidney disease
Presents with HTN, recurrent UTI, abdominal pain, stones, CKD, berry aneurysms, cysts, valve prolapse
What drug can be used in PCKD?
Tolvaptan
Describe Alport’s
X linked dominant type IV collagen
Microscopic haematuria, renal failure, sensorineural hearing loss (bilateral), ocular manifestations
What will biopsy of Alports show?
Longitudinal splitting of lamina dense
Name the stages of AKI
1 -
2-
3-
How does AKI present?
Reduced urine output
Oedema
Uraemia
Arrhythmias
State the indications for dialysis in AKI
Hyperkalaemia >7
Severe acidosis
Fluid overload
Urea >40
Name the pre-renal causes of AKI
Hypovolaemia
Hypotension
Renal hypo perfusion
What can untreated AKI lead to?
Acute tubular necrosis
- muddy brown casts
How do you treat pre-renal AKI?
Fluid bolus
Name the renal causes of AKI
Vascular - vasculitis
Glomerular - GN, systemic
Interstitial nerphritis
Tubular injury
What causes interstitial nephritis?
Drugs
Infection -TB
Systemic - sarcoidosis
What causes tubular injury?
Ischaemia
Drugs - gentamicin
Contrast
Rhabdomyolysis
Describe interstitial nephritis
Penicillin, NSAIDs, allopurinol, furosemide, PPI
Fever, rash, eosinophilia, renal impairment , hypertension
What causes post renal AKI?
Obstruction
- calculi
- stricture
- cancer
- extrinsic
How do you treat hyperkalaemia?
ECG and IV
Calcium gluconate
Insulin/nebulised salbutamol
How does hypokalaemia present?
Muscle weakness, hypotonia
What is the antidote to ethylene glycol?
Ethanol
What drugs should be avoided in AKI?
ACEi/ARB Diuretics NSAIDs Gentamicin Trimethoprim Contrast
What bug usually causes prostatitis?
E.coli
How is bacterial prostatitis treated?
Quinolones
What is balanitis?
Inflammation of the glans
What infections can cause balanitis?
Candida
Staph
How do you treat BPH?
Alpha 1 antagonists - tamsulosin
5 alpha reductase inhibitor -finesteride
TURP surgery
What can cause acute urinary retention?
BPH
Obstruction
Anticholinergic drugs
Neurological cause
What is the most common type of prostate cancer?
Adenocarcinoma
How is prostate cancer investigated?
PSA and DRE
MRI and biopsy
What grading scale is used in prostate cancer?
Gleason’s
How do you treat prostate cancer?
Prosatectomy
Radiotherapy
Hormone treatment
What hormone therapy can be used in prostate cancer?
Synthetic GnRH agonist
Anti-androgen
Bilateral orchidectomy
What is the most common bladder cancer?
Transitional cell
What is the biggest risk factor for bladder cancer?
Smoking
Occupation risk - hydrocarbon dyes
What is schistosomiasis infection associated with?
Squamous cell carcinoma
How does bladder cancer present?
Painless macroscopic haematuria
LUTS
How is bladder cancer investigated?
Flexible cystoscopy and biopsy
MRI
CT
PET
How is bladder cancer treated?
Chemo
Cystectomy
Radiotherapy
What are the red flags in terms of bladder cancer?
Age >45
- visible haematuria
Age >60
- visible haematuria and dysuria/raised WCC
- recurrent or persistent unexplained UTI
How do you investigate macroscopic haematuria?
> 50 - CT urography flexible cystoscopy
<50 USS and flexible cystoscopy then CT urography
Pregnancy - MR urography
Name benign renal tumours
Cysts
Oncocytoma
Angiomyolipoma
Name three malignant tumours of the kidney
Transitional cell - renal pelvis
Renal cell carcinoma - parenchyma
Embyrogenic - nephroblastoma
What is the common renal cell carcinoma?
Clear cell
Who gets renal cell carcinoma?
Middle aged men
Smokers
What genetic disease is renal cell carcinoma associated with?
Von Hippel Lindau
State the features of renal cell carcinoma
Haematuria Loin pain Abdo mass Pyrexia Paraneoplastic syndrome Stauffer syndrome
What is the typical mets of renal cell carcinoma?
Haem spread to lungs causing cannot ball mets
How do you assess renal cell carcinoma?
USS
CT
Biopsy
How is renal call carcinoma treated?
Nephrectomy
Ablative
Abjuvant therapy
What is nephroblastoma called?
Wilm’s tumour
Describe nephroblastoma
Present in first 4 years of life with a mass, haematuria, pyrexia
How is wilm’s treated?
Nephrectomy
How does colic present?
Loin to groin pain with associated nausea, vomiting, haematuria/dysuria
What are the common sites of calculi?
Pelvic ureteric junction
Pelvic brim
Vesicoureteral junction
How do you investigate colic?
CT KUB
USS/MRI if pregnancy
How is colic treated?
NSAIDs <5mm pass spontaneously alpha blocker - tamsulosin Shock wave Lithotripsy Ureteroscopy - pregnancy Nephrolithotomy
How is colic treated in an emergency?
Nephrostomy and ureteric catheter and stent
What do struvite stones look like?
Stag horn calculi - proteus bacteria
What is the commonest cause of urethral stricture?
Catheterisation
How is hydronephrosis investigated and treated?
Ix - USS, CT KUB,
Nephrostomy
Describe hydrocele
Fluid in tunica vaginalis
Soft non tender swelling confined to scrotum
Transluminates
USS and conservative
What causes hydrocele in newborns?
Patent processus vaginalis
Describe varicocele
Bag of worms, usually on the left USS and conservative.
Blockage of renal vein can be a cause
What type of cancer are most common in the testes?
Germ cell tumours
How do you investigate testicular cancer?
USS
CT
How is testicular cancer treated?
Surgery
Seminoma - radiosensitive and surgery
Orchidectomy
What are the tumour markers in testicular cancer?
PLAP - seminoma
AFT and HCG in teratoma
What are the two types of priapism and how are they managed?
Non-ischaemic - conservative
Ischaemic - emergency aspiration and phenylephrine then surgery
What is the most common penile cancer?
Squamous cell carcinoma
How does penile SCC present?
Red, raised, fumigating, foul smelling mass requires penectomy and reconstruction