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CT PATHOLOGY Hemorrhages involving the basal ganglia area (the putamen in particular) tend to be non-traumatic and caused by hypertension, which damages.

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Presentation on theme: "CT PATHOLOGY Hemorrhages involving the basal ganglia area (the putamen in particular) tend to be non-traumatic and caused by hypertension, which damages."— Presentation transcript:

1 CT PATHOLOGY Hemorrhages involving the basal ganglia area (the putamen in particular) tend to be non-traumatic and caused by hypertension, which damages and weakens the small penetrating arteries. A mass effect with midline shift, often with secondary edema, may lead to herniation.

2 A blood clot is seen over the external surface of the dura. Thus, this is an epidural hematoma. Such a location for hemorrhage is virtually always the result of trauma that causes a tear in the middle meningeal artery.

3 Another cause for hemorrhage, particularly in persons aged 10 to 30, is a vascular malformation. Seen here is a mass of irregular, tortuous vessels over the left posterior parietal region.

4 A thrombosis of the internal carotid artery is seen here. Arterial thromboses are far more common in the brain than venous thromboses (by a ratio of about 100 to 1).

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19 Pulmonary arteriovenous malformation

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26 MRI

27 CT

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30 MRI

31 CT

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33 Diagnosis: Mesothelioma Brief history: 65 year old male with right upper extremity pain. Images:

34 CT

35 MRI

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38 Magnetic resonance image (MRI) of individual breast, demonstrating marked enhancement (bright area) which was confirmed to be cancer.

39 MRI

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