The three main items of examination for intracranial melanoma

Intracranial melanoma is a relatively rare malignant tumor, so many people do not know much about it, let alone the examination of intracranial melanoma. So, what are the examination items for intracranial melanoma ? The details are as follows:

1. Examination of melanoma: Cerebral angiography: Intracranial melanoma has abundant blood supply and is prone to invade the blood vessel wall, causing intratumoral hemorrhage and extensive bloody metastasis. Cerebral angiography can show abundant tumor circulation and staining, which has a high diagnostic value.

2. CT scan This melanoma examination can show the location, size, number and range of the tumor, but the diagnostic specificity is poor. CT scan lesions are mostly high-density shadows, a few can also be isodense or low-density shadows, and enhanced scans show uniform or non-uniform enhancement.

3. MRI has better diagnostic sensitivity and specificity for intracranial melanoma than CT. Typical MRI shows short T1 and short T2 signals, and a few atypical MRIs show short T1 and long T2 or equal T1 and equal T2 signals. The examination of melanoma depends on the content and distribution of paramagnetic melanin in the tumor and the content of paramagnetic ferrohemoglobin in the intratumoral hemorrhage foci.

The above is the introduction to the examination of intracranial melanoma, which is for your reference only. I believe that everyone has learned about the examination of melanoma. At the same time, I hope that the above content can help you. If you have any questions about the examination of melanoma, please consult online experts!

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