A wandering ureteral bud may cross the midline to the contralateral side and diffuse with the contralateral metanephric blastema, rather than the same side blastema, resulting in the formation of a crossed
ectopic kidney. The other blastema, which did not fuse, will soon regress.
We consider it important to report this case due to the inaccurate diagnosis of diaphragmatic eventration, owing to the coexistence of an intrathoracic
ectopic kidney, location of the defect on the right side, sex of the patient, and the age of the patient at the time of diagnosis.
The location of an
ectopic kidney can be pelvic, lumbar, abdominal, and thoracic or crossed fused.
The presumed diagnosis of
ectopic kidney was confirmed with a cystoscopy with retrograde pyelography.
Two patients of renal agenesis, one each of crossed fused ectopia, horse shoe kidney and
ectopic kidney. The diagnosis was confirmed either on CT scan or IVP examination.
Thoracic
ectopic kidney is a rare developmental anomaly that is the least frequent one among all forms of
ectopic kidneys.
Transitional cell carcinoma in a fused crossed
ectopic kidney. Urology 2003; 62:748.
A solitary left
ectopic kidney, measuring 9.1x6.2 cm, was seen superior to the bladder in the pelvis.
Patients had the pre-diagnosis of hydronephrosis mostly (17 patients in Group A, 11 patients in Group B) in both groups and also atrophy-hypoplasia (13 patients in Group A, 5 patients in Group B), ureteropelvic junction obstruction (11 patients in Group A, 4 patients in Group B), recurrent urinary tract infection (6 patients in Group A, 6 patients in Group B) and less often vesicoureteral reflux, duplex system, the posterior urethral valve, nephrolithiasis,
ectopic kidney (Fig.1).
Others each case for renal stone, pleural effusion, enlarged prostate gland, renal enlargement, reduce kidney size,
ectopic kidney, renal transplantation and angiomyolipoma.
Agenesis is most common, but malrotation, horseshoe kidney, or
ectopic kidney may be present (Moore, 1975).