Neural

Question 1

Answer 1

Pustulo-ovoid bodies of Milan

These are PAS positive lysosomal inclusions surrounded by a clear halo in Granular Cell Tumors

Question 2

Answer 2

Diffuse neurofibroma

Question 3

Answer 3

Plexiform neurofibroma

Question 4

Answer 4

Localized neurofibroma

Question 5

Answer 5

Neurotized nevus

Question 6

Answer 6

Myxoid neurothekeoma

aka

Dermal nerve sheath myxoma

S100 positive, whereas cellular neurothekeoma is S100 negative

Question 7

Answer 7

Schwannoma

Verocay Bodies are within Antoni A tissue

Soft schwannoma is primarily Antoni B tissue (more myxoid)

Hard schwannoma is primarily Antoni A tissue (more cellular)

Question 8

Answer 8

Palisaded Encapsulated Neuroma

Cracks, clefting artifact as well as bundled appearance is clue here

Question 9

Answer 9

Perineuroma

Onion skin or storiform

Question 10

Answer 10

Nasal Glioma

aka

Glial Heteroptopia

Question 11

Answer 11

Cutaneous Ganglioneuroma

See Ganglion cells

Question 12

Answer 12

Supranumerary digit

Question 13

Answer 13

Traumatic neuroma

Question 14

Answer 14

Epithelial sheath neuroma