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from article Zoonoses
The Rocky Mountain wood tick (Dermacentor andersoni) is the etiologic agent of Rocky Mountain spotted fever. (Credit: Christopher Paddock/Centers for Disease Control and Prevention)
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from article Zoonoses
Cryptococcosis of a lung in a patient with acquired immune deficiency syndrome (AIDS). Histopathology of the lung shows a widened alveolar septum containing a few inflammatory cells and numerous yeasts of Cryptococcus neoformans. The inner layer of…
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from article Zoonoses
Light micrograph of a dog roundworm (Toxocara canis). (Credit: olgaru79/Shutterstock)
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from article Schizophrenia
Magnetic resonance images of the brains of identical twins (one suffering from schizophrenia, and one being normal). In a schizophrenic patient, there typically is enlargement of the fluid-filled cavities in the brain known as ventricles. The arrows…
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from article Medical imaging
Anteroposterior x-ray of the bones of a human left hand and wrist. X-ray studies are the most common radiologic procedures. (Credit: kravka/Shutterstock)
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from article Medical imaging
Colored angiogram (produced by injecting an x-ray opaque dye into blood vessels) of the left carotid artery (black, center) in the neck of a 56-year-old patient. The jaw is displayed at the left, and the back of the head is toward the right. The…
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from article Medical imaging
Multiple computerized tomographic (CT) images of a human abdominal area. (Credit: Don Farrall/Getty Images)
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from article Medical imaging
Colored ultrasound scan of a section through the pelvis of a 52-year-old man with an adenoma (a benign, noncancerous tumor) of the prostate gland (pink). (Credit: Zephyr/Science Source)
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from article Medical imaging
Magnetic resonance imaging (MRI) is a tool used to examine the brain. Four coronal-view MRI scans of the human brain are shown. (Credit: AkeSak/Shutterstock)
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from article Digitalis
Close-up view of common purple foxglove (Digitalis purpurea). (Photo by Vera Kratochvil)
