月归档:十二月 2010

hemolytic anemia 溶血性贫血

This peripheral blood smear with methylene blue stain shows Heinz body inclusions in red blood cells. Inherited disorders of RBC enzymes may lead to hemolytic anemia. One of the most common of these is glucose-6-phosphate dehydrogenase (G6PD) deficiency, an X-linked … 继续阅读

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pyelonephritis肾盂肾炎

Note the 0.1 to 0.5 cm cysts involving the inner medullary and papillary regions in this kidney. Note that the cortex appears normal. This is medullary sponge kidney (MSK), which is congenital, but most often occurs sporadically without a defined … 继续阅读

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hydroureter 输尿管积水

There is left hydronephrosis and hydroureter seen in this intravenous urogram. This is a case of vesicoureteral reflux (VUR). Incompetence of the vesicouretreal valve may be due to a congenital malposition or shortening of the intravesicle portion of the ureter. … 继续阅读

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adenocarcinoma of the lung 肺癌

Large bronchial cast formation may complicate hypersecretory pulmonary diseases, including pneumonia, bronchitis, bronchiectasis, asthma, cystic fibrosis, allergic bronchopulmonary aspergillosis, bronchocentric granulomatosis, and even neoplasia, as in this case of a man with adenocarcinoma of the lung. The therapy includes specific … 继续阅读

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viral myocarditis于 病毒性心肌炎

There is myocyte necrosis along with inflammation consisting of mononuclear cells, typical for a viral myocarditis. The most common de novo cardiac infection is viral. The most common clinical manifestation of viral infection is a nonspecific febrile illness. Coxsackie B … 继续阅读

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Plasmodium 疟原虫属

There are Babesia microti organisms within the red blood cells of this peripheral blood smear. The parasite can appear as a small ring form resembling that of Plasmodium (malaria) sp. However, division into four daughter parasites can produce the characteristic … 继续阅读

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ureterolithiasis 泌尿道结石

The small round bright area of attenuation seen in the left lower ureteral region adjacent to the bladder represents a urinary tract calculus (ureterolithiasis). Most calculi contain calcium, which imparts the brightness on radiographs and CT imaging, along with an … 继续阅读

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bacterial vaginosis 细菌性阴道炎

The unstained squamous epithelial cells seen here on a “wet mount” preparation from a cervical swab are “clue cells” with adherent bacilli typical for bacterial vaginosis. There is ususally a moderate amount of malodorous (fishy) white or grey low viscosity … 继续阅读

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adenocarcinoma 腺癌

This is a mucicarmine stain that demonstrates intracellular mucin production by cells forming a nest of irregular glands, typical for an adenocarcinoma. Histochemical staining has largely been supplanted by immunohistochemical staining with antibodies to specific antigenic tissue and cellular components. … 继续阅读

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cerebral atrophy 脑萎缩

There is marked cerebral atrophy with ex vacuo ventricular dilation. This degree and extent of atrophy, symmetrical and most marked in frontal, temporal, and parietal lobes, is most typical for Alzheimer disease, the most common form of dementia seen in … 继续阅读

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