From:
jasperand4
Date: 2002-03-19 16:06:00 UTC
Subject: Histology report on cystic kidney
Dr. Williams, When I posted here about the cystic kidney of my 8 month old jill, you said that it might not be a cystic kidney in the true sense, but a large bag of urine, due to a blockage.
I have recieved the results and would be very grateful if you, or
others would give me an opinion on the findings, as I will not be able
to speak with my vet for several days.
SAMPLE - right kidney and adjacent fibrous tissue.
DESCRIPTION - macroscopically the tissue appears to be a collapsed fibrous
cyst-like structure. Representative sections show parts of a kidney which
has a thick fibrous capsule continuous with a linear area of fibrous
hyperplasia which appears to form the wall of an unlined cyst.
The kidney has a congested parenchyma and shows interstitial fibrosis with
lymphocytic infiltration at the poles and around the renal pelvis. One of
the samples contains a dilated tubule which is presumed to be ureter (it is
lined with transitional epithelium). This is surrounded with hyperplastic
fibrous tissue and there is an area of necrosis, calcification and early
pathological ossification in the immediately surrounding tissue.
INTERPRETATION - interpretation is not straight forward, partly because
orientation of the histological sections is difficult.
The appearence is of reactive fibrosis closely associated with the ureter
and possibly early hydronephrosis. The small area of calcification may be
the result of ischaemic necrosis.
Thank you for your time
Carol