intracellular and extracellular accumulation
DESCRIPTION
Histopathology Department College of veterinary Medicine Sulaimani University Kurdistan/IraqTRANSCRIPT
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Intracellular and Extracellular
accumulation
Dr. Azad Kareem Saeed
Histopathology Department
15/10/2012
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Organ: liver
Lesions: A: liver is enlarged, pale brown to beige, edges rounded and
the cut surface is not be greasy.
B: The hepatocytes are distended (arrows) with extensive
cytoplasmic vacuolation. H&E stain.
Dx: Glycogen accumulation.
A B
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Organ: liver
Lesions:
A: Presence of clear, empty
vacuole within hepatocyte
cytoplasm.
B: Periodic acid-Schiff reaction
shows irregular distribution of
glycogen (darker color) in the
hepatocytes.
Dx: Glycogen accumulation
A
B
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Organ: Liver
Lesions:
Periodic acid-Schiff stain
shows irregular distribution of
glycogen (violet color) in the
hepatocytes.
Dx: Glycogen accumulation
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Extracellular accumulation
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Lesions: 1. Presence of homogenous, glassy, eosinophilic substances
within the cytoplasm of epithelial cells (Blue arrows).
2. Homogenous, glassy, eosinophilic substances occupied the lumen of
renal tubule (black arrow).
Dx: 1. Intracellular hyaline (Hyaline droplet).
2. Extracellular hyaline.
Organ:
Kidney
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Lesions:
The wall of the afferent glomerular arteriole appears as a
glassy pink, homogenous deposit (blue arrow).
Dx: Extracellular hyaline.
Organ: Kidney
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Amyloidosis
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Organ:
Pancreas
Lesion:
Diagnosis:
Deposition of an
amorphous,
homogenous,
eosinophilic, material
(arrow) extracellularly
within the glandular
tissue.
Amyloidosis
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Organ: Kidney
Lesion: The glomerular architecture is nearly totally obliterated
by amorphus pink material.
Dx: Glomerular Amyloidosis
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Organ: Lymph node
Lesion:
Dx:
Deposition of an amorphous, homogenous, eosinophilic,
material (arrows) extracellularly within the lymphatic
tissue.
Amyloidosis (Right: H&E, Left: Congo red).
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Organ:
duodenum
Lesions:
A: Presence of amorphous
homogenous pink material
in lamina propria (H&E)
and around blood vessels.
B: an amorphous
homogenous bright pink
material in lamina propria
and around blood vessels
after staining with Congo
red.
Dx: Amyloidosis
A
B
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Organ: Heart
Lesions:
A: Presence of extracellular
amorphous homogenous
pink material (Blue arrow).
B: Same section stained
with congo red, the amyloid
protein appeared as bright
pink (black arrow).
Dx: Amyloidosis
A
B
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