Neurofibroma

Question 1

• Neurofibroma are occur only NF1
• No intracranial neurofibroma exists, it’s arise from posterior ganglia with central extension.

Do these two sentence are true?

Answer 1

Yes and yes

♪(´ε｀ )

Question 2

Between neurofibroma and SWN which one rarely developed cystic change, hemorrhage , fatty degeneration?

Answer 2

Neurofibroma

Question 3

Fusiform enlargement of multiple nerve fascicles and branches is characteristic in gross of Plexiform neurofibroma.

Does it true about above sentence?

Answer 3

True

Question 4

In natural history of neurofibroma how much percentage does it undergo malignant degeneration?

Answer 4

5 - 13%

￣(工)￣

Question 5

MPNSTs
(Malignant peripheral nerve sheath tumors)
are almost alway arise from neurofibroma.

Does the above sentence is true?

Answer 5

No

It also arise in de novo rather than malignant degeneration

Question 6

What cranial nerve is most commonly affected by MPNSTs?

1 2 3 4 5 6 7 8 9 10 11 12 13

Answer 6

Cranial nerve 5 is the most

Then cranial nerve 8

We don’t have CN 13… Okay!

Question 7

Please desceibed the typical locations of MPNSTs..

Answer 7

> > retroperitoneum, mediastinum, viscera as well as large nerves at neck and extremities.

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