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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/10/07 04:05:24」(JST)
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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
- Urinary system
- Pathology
- Urologic disease / Uropathy (N00–N39, 580–599)
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Abdominal |
Nephropathy/
(nephritis+
nephrosis) |
Glomerulopathy/
glomerulitis/
(glomerulonephritis+
glomerulonephrosis) |
Primarily
nephrotic |
Non-proliferative |
- Minimal change
- Focal segmental
- Membranous
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Proliferative |
- Mesangial proliferative
- Endocapillary proliferative
- Membranoproliferative/mesangiocapillary
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By condition |
|
|
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Primarily
nephritic,
RPG |
Type I RPG/Type II hypersensitivity |
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Type II RPG/Type III hypersensitivity |
- Post-streptococcal
- Lupus
- IgA/Berger's
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Type III RPG/Pauci-immune |
- Granulomatosis with polyangiitis
- Microscopic polyangiitis
- Churg–Strauss syndrome
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Tubulopathy/
tubulitis |
Proximal |
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Thick ascending |
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Distal convoluted |
|
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Collecting duct |
- Liddle's syndrome
- RTA
- Diabetes insipidus
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Renal papilla |
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Major calyx/pelvis |
- Hydronephrosis
- Pyonephrosis
- Reflux nephropathy
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Any/all |
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|
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Interstitium |
- Interstitial nephritis
- Pyelonephritis
- Danubian endemic familial nephropathy
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Any/all |
General syndromes |
- Renal failure
- Acute renal failure
- Chronic kidney disease
- Uremic pericarditis
- Uremia
|
|
Vascular |
- Renal artery stenosis
- Renal ischemia
- Hypertensive nephropathy
- Renovascular hypertension
- Renal cortical necrosis
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Other |
- Analgesic nephropathy
- Renal osteodystrophy
- Nephroptosis
- Abderhalden–Kaufmann–Lignac syndrome
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Ureter |
- Ureteritis
- Ureterocele
- Megaureter
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Pelvic |
Bladder |
- Cystitis
- Interstitial cystitis
- Hunner's ulcer
- Trigonitis
- Hemorrhagic cystitis
- Neurogenic bladder dysfunction
- Bladder sphincter dyssynergia
- Vesicointestinal fistula
- Vesicoureteral reflux
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Urethra |
- Urethritis
- Non-gonococcal urethritis
- Urethral syndrome
- Urethral stricture/Meatal stenosis
- Urethral caruncle
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Any/all |
- Obstructive uropathy
- Urinary tract infection
- Retroperitoneal fibrosis
- Urolithiasis
- Bladder stone
- Kidney stone
- Renal colic
- Malakoplakia
- Urinary incontinence
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Index of the urinary system
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Description |
- Anatomy
- Physiology
- Development
- Cells
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Disease |
- Electrolyte and acid-base
- Congenital
- Neoplasms and cancer
- Other
- Symptoms and signs
- Urine tests
- Blood tests
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Treatment |
- Procedures
- Drugs
- Intravenous fluids
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Congenital malformations and deformations of urinary system (Q60–Q64, 753)
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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
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Ureter |
- Ectopic ureter
- Megaureter
- Duplicated ureter
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Pelvic |
Bladder |
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Urethra |
- Epispadias
- Hypospadias
- Posterior urethral valves
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Vestigial |
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Index of the urinary system
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Description |
- Anatomy
- Physiology
- Development
- Cells
|
|
Disease |
- Electrolyte and acid-base
- Congenital
- Neoplasms and cancer
- Other
- Symptoms and signs
- Urine tests
- Blood tests
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Treatment |
- Procedures
- Drugs
- Intravenous fluids
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UpToDate Contents
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English Journal
- Postoperative vesicoureteral reflux after high-pressure balloon dilation of the ureterovesical junction in primary obstructive megaureter. Incidence, management and predisposing factors.
- García-Aparicio L1, Blázquez-Gómez E2, de Haro I2, Garcia-Smith N2, Bejarano M2, Martin O2, Rodo J2.
- World journal of urology.World J Urol.2015 Dec;33(12):2103-6. doi: 10.1007/s00345-015-1565-9. Epub 2015 Apr 22.
- OBJECTIVE: To describe the incidence, predisposing factors and management of postoperative vesicoureteral reflux (VUR) after high-pressure balloon dilation to treat primary obstructive megaureter (POM).MATERIALS AND METHODS: We have reviewed patients that underwent endoscopic treatment for POM from
- PMID 25899625
- A case of idiopathic diabetes insipidus presented with bilateral hydroureteronephrosis and neurogenic bladder: A pediatric case report and literature review.
- Yuksel OH1, Kivrak M2, Sahin A1, Akan S1, Urkmez A1, Verit A1.
- Canadian Urological Association journal = Journal de l'Association des urologues du Canada.Can Urol Assoc J.2015 Nov-Dec;9(11-12):E817-E820. Epub 2015 Nov 4.
- Diabetes insipidus (DI) is a condition with heterogeneous clinical symptoms characterized by polyuria (urine output >4 mL/kg/hr) and polydipsia (water intake >2 L/m 2/d). In children, acquired nephrogenic DI (NDI) is more common than central DI (CDI). Diagnosis is based on the presence of high
- PMID 26600892
Japanese Journal
- CAKUT(congenital anomalies of the kidney and urinary tract)に対する画像検査—排尿時膀胱尿道造影(VCUG)と核医学検査—
- 白柳 慶之,山崎 雄一郎
- Nihon Shoni Jinzobyo Gakkai Zasshi 26(1), 33-42, 2013
- CAKUTは尿路における先天異常の総称で腎臓(e.g. 腎低形成,腎異形成),腎盂尿管(e.g. 水腎症,巨大尿管症),膀胱(e.g. 尿管瘤,膀胱尿管逆流(VUR)),尿道(e.g. 後部尿道弁(PUV))などの疾患を含む。胎児期に発見されるCAKUTは中枢神経系の異常に次いで多く,全出生の0.3~0.6%にのぼる。出生後早期にVCUGを行った方が良い病態は,1.膀胱の変形,壁の肥厚・巨大膀胱 …
- NAID 130003384552
- 臨床研究・症例報告 先天性巨大尿管症に対し右腎尿管摘除術を施行した男児例 : 腎瘻造設後の分腎機能評価の有用性
Related Links
- A congenital (primary) megaureter is a 'basket-term' to encompass causes of an enlarged ureter which are intrinsic to the ureter, rather than as a result of a more distal abnormality; e.g. bladder, urethra (see secondary megaureter). It ...
- megaureter congenital dilatation of the ureter; it may be either a primary condition or secondary to something else. Called also megaloureter. u·re·ter·ec·ta·si·a (yū-rē'tĕr-ek-tā'zē-ă), Dilation of a ureter. Synonym(s): hydroureter, megaloureter ...
Related Pictures
★リンクテーブル★
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- 英
- megaureter, megaloureter