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بزرگنمایی
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multiple cysts in kidney
Patient with renal failure who undergo dialysis for years may develop multiple cysts in their kidneys. Such cysts are more numerous than the common simple renal cysts, but usually less numerous than cysts with DPKD, and the size of the kidneys is usually not markedly increased
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بزرگنمایی
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NEUTROPHILS - TOXIC GRANULATION
Granularity: thick granules, more eosinophilic stained than typical neutrophilic granularity. Single granules with a tendency to aggregate.
Occurrence in blood:
normally not present
Comment: Band neutrophil leucocyte with dark, very abundant toxic granulation. Also anisocytosis of erythrocytes. Numerous ovalocytes. Normal platelets. Staining: MGG
Magnification: x 1000
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بزرگنمایی
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Pneumocystis carinii
13- Pneumocystis carinii may have a variety of "atypical" features, including scant foamy exudate and interstitial fibrosis, as seen here microscopically
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بزرگنمایی
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papillary carcinoma
Sectioning through a lobe of excised thyroid gland reveals papillary carcinoma. This neoplasm can be multifocal, as seen here, because of the propensity to invade lymphatics within thyroid, and lymph node metastases are common. The larger mass is cystic and contains papillary excresences. These tumors most often arise in middle-aged females.
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بزرگنمایی
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The tubular vacuolization and tubular dilation
270) The tubular vacuolization and tubular dilation here is a result of the toxic effect of ethylene glycol poisoning. This is representative of acute tubular necrosis (ATN), which has many causes. ATN resulting from toxins usually has diffuse tubular involvement, whereas ATN resulting from ischemia (as in profound hypotension from cardiac failure) has patchy tubular involvement
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بزرگنمایی
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Bacillus cereus
The form of Bacillus cereus colonies varies depending on strain. Generally large colonies with a dull or frost-glass surface and undulate margin.
General characteristics: Gram-positive, spore-forming rods. Catalase-positive. Normally motile, although often slow. Attacks glucose by fermentation
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بزرگنمایی
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PLATELET
Size of the cell: 1 - 4 m
Shape of the cell: round or oval, with irregularly jagged margin
Colour of cytoplasm: blue
Granularity: fine, violet granules filling central area of platelet. Thin margin without granules on the periphery of the cell. Decrease or disappearance of granules in platelets is a morphological anomaly
Nucleus: not present
Comment: Single, giant platelet prominently degranulated with granulation concentrated in one pole of the cell. Staining: MGG
Magnification: x 1000
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بزرگنمایی
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ERYTHROBLASTS IN THE BLOOD
Definition: Cells with dark, condensed nucleus, morphology like in the bone marrow
Occurrence in blood: normally not present. Present only in the blood of newborn children.
Comment: An early polychromatophilic erythroblast is present in the blood. Also several ovalocytes and microcytes are present. Staining: MGG
Magnification: x 1000
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بزرگنمایی
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(CT) scan of the abdomen
This computed tomographic (CT) scan without contrast of the abdomen in transverse view demonstrates multiple mass lesions resulting in a markedly enlarged liver extending from right to nearly the left side of the upper abdomen. These are metastases from a colonic adenocarcinoma. A normal sized spleen is seen at the lower left
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بزرگنمایی
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NEUTROPHIL METAMYELOCYTE
Size of the cell: 14 - 20 mm
Shape of the cell: oval or round
Colour of cytoplasm: pink
Granularity: a few azurophilic and neutrophilic, different in number
Nucleus' shape: elongated, semicircular
Type of chromatin: condensed
Nuclear/cytoplasmic ratio: low or very low
Nucleoli: not visible
Occurrence:
blood: not present
marrow: 10 - 25 %
Comment: Neutrophil metamyelocyte indicated by the arrow is present in blood. Besides, neutrophil segmented and band-forms leucocytes are seen. Platelets not rich in granules. Staining: MGG
Magnification: x 1000
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بزرگنمایی
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Trichocephalus egg 40x
Trichocephalus egg 40x
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بزرگنمایی
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Human immunodeficiency virus
A human immunodeficiency viral particle is seen budding from the infected cell surface at the top, with a complete viral particle at bottom in this high magnification electron micrograph
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بزرگنمایی
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"nutmeg" liver
Here is an example of a "nutmeg" liver seen with chronic passive congestion of the liver. Note the dark red congested regions that represent accumulation of RBC's in centrilobular regions
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بزرگنمایی
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simple renal cysts
Very common in adult kidneys seen at autopsy are one or several simple renal cysts. These cause no problems
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بزرگنمایی
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Enterobius vermicularis female 40x egg
Enterobius vermicularis female
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بزرگنمایی
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Hydatic cyste 10x
Hydatic cyste 10x
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بزرگنمایی
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Hereditary hemochromatosis - HHC
The dark brown color of the liver, as well as the pancreas (bottom center) and lymph nodes (bottom right) on sectioning is due to extensive iron deposition in a middle-aged man with hereditary hemochromatosis (HHC). HHC results from a mutation involving the hemochromatosis gene (HFE) that leads to increased iron absorption from the gut. The prevalence is between 1:200 and 1:500 persons in the U.S. About 1 in 10 persons of northern European ancestry carries the abnormal recessive HFE gene, and most of these are the C282Y mutation
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