Pathology: Benign neoplasia

Question 1

Describe the gross characteristics of benign neoplasia.

Answer 1

1. Well-circumscribed.
2. homogenous consistency
3. lacking invasion into adjacent structures
4. small in size/encapsulated

Question 2

Describe the microscopic characteristics of benign neoplasia.

Answer 2

1. monomorphic cell prolif.
2. bland nuclei, small/no nucleoli
3. low/no mitotic activity
4. similar in architecture to normal counterpart.

Question 3

What is an example of a benign lesion that is a precursor to malignant neoplasm?

Answer 3

dysplasia and carcinoma

Question 4

What is the name for a benign skeletal muscle tumor vs. its malignant counterpart?

Answer 4

benign: rhabdomyoma
malignant: rhabdomyosarcoma

Question 5

What is the name for a benign tumor of the smooth muscle vs. its malignant counterpart?

Answer 5

leiomyoma: benign

malignant counterpart: leiomyosarcoma

Question 6

What is the name for a benign tumor of gland-forming epithelium vs. its malignant counterpart?

Answer 6

ademona is benign

adenocarcinoma is malignant