Molavi

Question 1

Pattern: alveolar def

Answer 1

nested but no glands, resemble alveoli

Question 2

Pattern: alveolar eg

Answer 2

paraganglioma

Question 3

Pattern: basaloid

Answer 3

resemble basal cell ca (palisading around the edge of the nest)…looks blue

Question 4

Pattern: biphasic eg.

Answer 4

synovial sarcoma

Question 5

Pattern: cribriform example

Answer 5

adenoid cystic carcinoma

Question 6

Pattern: cribriform def

Answer 6

crisp round holes within a glandular tissue; perforated

Question 7

Pattern: discohesive def

Answer 7

falling apart into single cells, no common borders among cells

Question 8

Pattern: discohesive eg

Answer 8

lobular carcinoma in situ

Question 9

Pattern: epitheloid def

Answer 9

oval to round cells, clear borders, abundant cytoplasm

Question 10

Pattern: epitheloid is opposite of

Answer 10

sarcomatoid

Question 11

Pattern: epitheloid eg

Answer 11

ductal carcinoma in breast

Question 12

Pattern: fascicular def

Answer 12

bundles of spindle cells, streaming parallel

Question 13

Pattern: fascicular eg

Answer 13

leiomyoma

Question 14

Pattern: glandular eg

Answer 14

adenocarcinoma

Question 15

Pattern: glomeruloid eg

Answer 15

coiled tangles of vessels in glioblastoma (GBM)

Question 16

Pattern: herringbone def

Answer 16

tweed fabric, a variant of fascicular which bundles in a zigzag way

Question 17

Pattern: herringbone eg

Answer 17

fibrosarcoma

Question 18

Pattern: hobnailed eg

Answer 18

angiosarcoma (endothelial cells protrude)

Question 19

Pattern: indian file eg

Answer 19

lobular breast ca

Question 20

Pattern: indian file def

Answer 20

3 to 4 cell long, runs parallel to stromal planes

Question 21

Pattern: microcystic def

Answer 21

spaces which are not ducts, glands or tubules

Question 22

Pattern: microcystic eg

Answer 22

mammary analogue secretory CA

Question 23

Pattern: micropapillary def

Answer 23

no fibrovascular core

Question 24

Pattern: medusa head microcapillary eg

Answer 24

serous ca, ovary

Question 25

Pattern: lollipop microcapillary eg

Answer 25

microcapillary DCIS

Question 26

Pattern: pagetoid spread def

Answer 26

single malignant cells in a benign epidermis

Question 27

Pattern: palisading eg

Answer 27

basal cell carcinoma

Question 28

Pattern: psuedopapillary eg

Answer 28

solid pseudo papillary neoplasm

Question 29

Pattern: reticular def

Answer 29

network, microcystic, honeycomb

Question 30

Pattern: reticular eg

Answer 30

yolk sac tumor, testes

Question 31

Pattern: rosette eg

Answer 31

ependymoma and other neuroglial and neuroendocrine tumors

Question 32

Pattern: rosette what is in the center

Answer 32

lumen or fibrillary core (vessels in the case of pseudo-rosette)

Question 33

Pattern: sarcomatoid eg and location

Answer 33

sarcomatoid carcinoma, seen as a tumor in lung

Question 34

Pattern: spindle eg

Answer 34

leiomyoma

Question 35

Pattern: staghorn vessels eg

Answer 35

hemangiopericytoma

Question 36

Pattern: storiform def

Answer 36

short whorls of cells

Question 37

Pattern: storiform eg

Answer 37

dermatofibrosarcoma protuberans

Question 38

Pattern: syncytial eg

Answer 38

meningioma

Question 39

Pattern: tissue culture pattern eg

Answer 39

nodular fascitis

Question 40

Pattern: trabecular def

Answer 40

cords separated by fibrous septa

Question 41

Pattern: trabecular eg

Answer 41

oncocytoma