Parathyroid Pathology

Question 1

what are the lobes of the parathyroid

Answer 1

right and left superior and inferior

Question 2

what do the superior lobes of the parathyroid develop from?

Answer 2

fourth pharyngeal pouc

Question 3

what do the inferior lobes of the parathyroid develop from?

Answer 3

third pharyngeal pouch

Question 4

mixed in with chief and oxyphil cells in the parathyroid is what?

Answer 4

25% adipose tissue

Question 5

what is parathyroid hyperplasia?

Answer 5

two or more glands are enlarged and have an increase in epithelial cells

Question 6

what do you not see much of in parathyroid hyperplasia?

Answer 6

fat in the gland

Question 7

what is main symptom of parathyroid hyperplasia?

Answer 7

increased serum calcium

Question 8

do you see any normal parathyroid tissue in hyperplasi?

Answer 8

no

Question 9

what happens in parathyroid adenoma?

Answer 9

benign neoplasm of the parathyroid

Question 10

what is seen on histo with paratyroid adenoma?

Answer 10

compressed rim of normal parathyroid tissue with one enlarged gland

Question 11

what are symptoms of parathyroid adenoma?

Answer 11

usually just elevated serum calcium

Question 12

what happens in parathyroid carcinoma?

Answer 12

malignant neoplasm of parathyroid

Question 13

what are the three types of invasion that occur in parathyroid carcinoma?

Answer 13

capsular
vascular
metastatic

Question 14

what happens in osteitis fibrosa cystica?

Answer 14

loss of bone mass as calcified supporting structures become fibrous tissue

Question 15

what disease leads to osteitis fibrosa cystica?

Answer 15

hyperparathyroid

Question 16

what bone imaging thing can you see with osteitis fibrosa cystica?

Answer 16

browns tumor

Question 17

what four things occur in bone in osteitis fibrosa cystica?

Answer 17

increased osteoclast activity
hemorrhage
cyst formation
fibrosis