RENAL PATHOLOGY
SLIDE PRESENTATION
By
Dr.ASMAA NAJIM
HORSE-SHOE KIDNEY
PELIVIC KIDNEY –RIGHT SIDE
INTRAVENOUS PYLOGRAM (Pelvic
right kidney)
Here is a much larger simple renal cyst of
the upper pole. Other smaller cysts are
also scattered around the kidney. The
ureter exits south on the left. Such a large
renal cyst would be seen on a radiographic
imaging procedure, but could probably be
distinguished from a neoplasm by its fluid
density.
ADULT congenitalpolycyctic kidney
disease
ADPKD
The cut surfaces of these kidneys in a patient with
ADPKD reveal that the parenchyma is replaced by large
cysts. Note how large these kidneys are in relation to
the normal sized transplanted kidney.
Autosomal Recessive polysystic
kidney disease
ARPKD
SCHEME : showing hydronephrosis
and hydroureter
HYDRONEPHROSIS OF THE KIDNEY
The arrow points to the culprit in this case
of hydronephrosis--a ureteral calculus at
the ureteropelvic junction. This kidney
demonstrates marked hydronephrosis with
nearly complete loss of cortex.
Both lymphocytes and plasma cells
are seen at high magnification in this
case of chronic pyelonephritis. It is not
uncommon to see lymphocytes
accompany just about any chronic
renal disease: glomerulonephritis,
nephrosclerosis, pyelonephritis.
However, the plasma cells are most
characteristic for chronic
pyelonephritis.
The end of part 1
RENAL CELL CARCINOMA
Cystic change resulting from long-term
renal dialysis may rarely give rise to renal
cell carcinoma. A large variegated mass is
seen here on sectioning of a kidney that
has large cysts arranged around the mass.
CLEAR CELL CARCINOMA
This small kidney from a 4 year old child contains a
lobulated tan-white mass. This is Wilm's tumor of the
kidney. Many are now known to be associated with
genetic defects on chromosome 11. The children with
Wilm's tumor usually present with abdominal
enlargement from the mass effect. Nowadays, treatment
gives a better than 90% 5 year survival.
This is a Wilm's tumor that is composed
microscopically of nests and sheets of dark blue
cells at the left with compressed normal renal
parenchyma at the right.
Normal stratified transitional
epithelium of the urinary bladder
Keratinized stratified squamus cell
epithelium
Papilloma
Papilloma
Transitional cell carcinoma of
urinary bladder
At high power, the transitional cell carcinoma does
resemble urothelium, but the thickness is much
greater than normal and the cells show more
pleomorphism.
transitional cell carcinoma
(papillary varient-low grade)
Transitional cell carcinoma –
transverse sectin –low grade tumor
Transitional cell carcinoma –
papillary varient – higher grade
Vascular invasion –transitional cell
carcinoma
Transitional cell carcinoma –solid
pattern –high grade
Squmous cell carcinoma of urinary
bladder (schistosomiasis)