Pathology Quiz Day 2

In Schwannoma, cellular areas with the tumor cell nuclei aligned in palisading rows leaving anuclear zones and resulting in the formation of structures called?

• Verogay bodies

• Verocay bodies

• Negri bodies

• Lewy bodies

Malignant transformation of neurofibroma commonly occurs in what variant?

• Superficial cutaneous neurofibroma

• Diffuse neurofibroma

• Plexiform neurofibroma

• Schwannoma

Neurofibromatosis type I is caused by loss of function mutations in the NF1 gene which encodes the tumor suppressor gene _________.

• Merlin

• Neurofibromin

• Polycystin

• Sarahgene

Neurofibromatosis type II is caused by loss of function mutations in the NF2 gene which encodes for the gene product ___________.

• Merlin

• Neurofibromin

• Polycystin

• Sarahgene

Myelinated segment called an internodes are separated by unmyelinated gaps referred to as _______________.

• Lymph nodes

• Myelin nodes

• Nodes of Ranvier

• Nodes of Randall

Most common principal routes by which microbes enter the nervous system is?

• Hematogenous spread

• Direct implantation

• Local extension

• Transport along the peripheral nerves

Most common cause of bacterial meningitis in young adults?

• Escherichia coli

• Group B streptococci

• Neisseria meningitides

• Mycobacterium tuberculosis

Intermediate host of Taenia solium?

• Dog

• Pig

• Cow

• Fish

Taenia saginata can also live in the brain and cause neurocysticercosis.

• True

• False

Hydatid disease is caused by ingestion of eggs of?

• Taenia solium

• Taenia saginata

• Echinococcus granulosus

• Trichinella spiralis