Megaureter

Megaureter
Classification and external resources
Specialty	medical genetics
ICD-10	N28.8, Q62.2
ICD-9-CM	593.89, 753.22
DiseasesDB	32546

Megaureter is a medical anomaly whereby the ureter is abnormally dilated. Congenital megaureter is an uncommon condition which is more common in males, may be bilateral, and is often associated with other congenital anomalies. The cause is thought to be aperistalsis of the distal ureter, leading to dilatation.

A functional obstruction at the lower end of the ureter leads to progressive dilatation and a tendency to infection. The ureteric orifice appears normal and a ureteric catheter passes easily.

Definitive surgical treatment involves refashioning the lower end of the affected ureter so that a tunnelled reimplantation into the bladder can be done to prevent reflux.

References

Bailey and Love's Short Practice of Surgery

Diseases of the urinary system (N00–N39, 580–599)

Kidney disease

Glomerules

Primarily
nephrotic

Non-proliferative	Minimal change Focal segmental Membranous

Proliferative	Mesangial proliferative Endocapillary proliferative Membranoproliferative/mesangiocapillary

By condition	Diabetic Amyloidosis

Primarily
nephritic,
RPG

Type I RPG/Type II hypersensitivity	Goodpasture's syndrome

Type II RPG/Type III hypersensitivity	Post-streptococcal Lupus DPGN IgA/Berger's

Type III RPG/Pauci-immune	Granulomatosis with polyangiitis Microscopic polyangiitis Churg–Strauss syndrome

General

Tubules

Interstitium

Interstitial nephritis
- Pyelonephritis
- Danubian endemic familial nephropathy

General

General syndromes	Nephritis Nephrosis) Renal failure Acute renal failure Chronic kidney disease Uremic pericarditis Uremia Diabetes insipidus Nephrogenic Renal papilla Renal papillary necrosis Major calyx/pelvis Hydronephrosis Pyonephrosis Reflux nephropathy

Vascular	Renal artery stenosis Renal ischemia Hypertensive nephropathy Renovascular hypertension Renal cortical necrosis

Other	Analgesic nephropathy Renal osteodystrophy Nephroptosis Abderhalden–Kaufmann–Lignac syndrome

Urinary tract

Ureter	Ureteritis Ureterocele Megaureter

Bladder	Cystitis Interstitial cystitis Hunner's ulcer Trigonitis Hemorrhagic cystitis Neurogenic bladder dysfunction Bladder sphincter dyssynergia Vesicointestinal fistula Vesicoureteral reflux

Urethra	Urethritis Non-gonococcal urethritis Urethral syndrome Urethral stricture/Meatal stenosis Urethral caruncle

Any/all	Obstructive uropathy Urinary tract infection Retroperitoneal fibrosis Urolithiasis Bladder stone Kidney stone Renal colic Malakoplakia Urinary incontinence Stress Urge Overflow

Congenital malformations and deformations of urinary system (Q60–Q64, 753)

Abdominal

Kidney	Renal agenesis/Potter sequence, Papillorenal syndrome cystic Polycystic kidney disease Meckel syndrome Multicystic dysplastic kidney Medullary sponge kidney Horseshoe kidney Renal ectopia Nephronophthisis Dent's disease Alport syndrome

Ureter	Ectopic ureter Megaureter Duplicated ureter

Pelvic

Bladder	Bladder exstrophy

Urethra	Epispadias Hypospadias Posterior urethral valves

Vestigial

Urachus	Urachal cyst

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