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Metanephric adenoma (MA) is a rare, benign tumour of the kidney, that can have a microscopic appearance similar to a nephroblastoma (Wilms tumours), [1] or a papillary renal cell carcinoma. It should not be confused with the pathologically unrelated, yet similar sounding, mesonephric adenoma .
There is a small association between Gartner's duct cysts and metanephric urinary anomalies, such as ectopic ureter and ipsilateral renal hypoplasia. [5] Symptoms of a Gartner's duct cyst include: infections, bladder dysfunction, abdominal pain, vaginal discharge, and urinary incontinence. [6] The size of the cyst is usually less than 2 cm.
Medullary sponge kidney is a congenital disorder of the kidneys characterized by cystic dilatation of the collecting tubules in one or both kidneys.Individuals with medullary sponge kidney are at increased risk for kidney stones and urinary tract infection (UTI).
Renal medullary carcinoma is a rare type of cancer that affects the kidney.It tends to be aggressive, difficult to treat, and is often metastatic at the time of diagnosis. . Most individuals with this type of cancer have sickle cell trait or rarely sickle cell disease, suggesting that the sickle cell trait may be a risk factor for this type of ca
The collecting ducts descend again into the medulla and fuse to wider collecting ducts, which pass through the inner medulla. [ 68 ] [ 69 ] Based on the location of the renal corpuscle in the cortex, nephrons are classified into 3 types: superficial (closer to the renal capsule), midcortical (in the middle part of the cortex) and juxtamedullary ...
The mechanism of multicystic dysplastic kidney is a result of an abnormal induction of metanephric mesenchyme. This could be a result of a formation difficulty of the mesonephric duct . Some mutations in genes associated with renal dysplasia (in syndromes) have been determined.
Ureter cancer rarely causes problems in the early stages, but as the cancer progresses, there are often side effects. [5] Symptoms of ureteral cancer may include "blood in the urine (); diminished urine stream and straining to void (caused by urethral stricture); frequent urination and increased nighttime urination (); hardening of tissue in the perineum, labia, or penis; itching; incontinence ...
The mesonephric duct, also known as the Wolffian duct, archinephric duct, Leydig's duct or nephric duct, is a paired organ that develops in the early stages of embryonic development in humans and other mammals. It is an important structure that plays a critical role in the formation of male reproductive organs.