The solitary kidney was almost always normal in shape and position, but much enlarged.
Microscopically the enlargement would seem to be due rather to hyperplasia than to hypertrophy.

The bladder, except for absence of the opening of one ureter, was generally normal.

In a large number of cases there were associated deformities of the organs of generation, especially of the female organs, and these were almost invariably on the side of the renal defect; they affected the conducting portion much more than the glandular portion--that is, uterus, vagina, and Fallopian tubes in the female, and vas deferens or vesiculae seminales in the male, rather than the ovaries or testicles.

Finally, he points out the practical bearing of the subject--for example, the probability of calculus causing sudden suppression of urine in such cases--and also the danger of surgical interference, and suggests the possibility of diagnosing the condition by ascertaining the absence of the opening of one ureter in the bladder by means of the cystoscope, and also the likelihood of its occurring where any abnormality of the genital organs is found, especially if this be unilateral." Green reports the case of a female child in which the right kidney and right Fallopian tube and ovary were absent without any rudimentary structures in their place.

Guiteras and Riesman have noted the absence of the right kidney, right ureter, and right adrenal in an old woman who had died of chronic nephritis.