Thrall chapter 20 bone tumours and infection

Question 1

1) Periosteal reaction is always a sign of an aggressive bone lesion. True or false?
a) True
b) False

Answer 1

1) B,False- smooth periosteal reactions are usually non-aggressive

Question 2

2) Which fungal disease is most common in the southwest region of the US?
a) Blastomycosis
b) Aspergillosis
c) Histoplasmosis
d) Coccidioidmycosis

Answer 2

D, blasto- south east, asper- worldwide and mainly respiratory but can disseminate, histo- Midwest and southern (can affect bones. The lungs and the lymph nodes in the chest are the sites of primary infection, although the gastrointestinal tract may be affected in dogs)

Question 3

3) Which is the most common site within a bone for fungal osteomyelitis to occur?
a) Epiphysis
b) Physis
c) Metaphysis
d) Diaphysis

Answer 3

c

Question 4

4) What is the most likely diagnosis?
a) Lymphoma
b) Metastasis from a solid elsewhere
c) Hepatozoonosis
d) Fungal disease

Answer 4

c. American canine hepatozoonosis (ACH) is a tick-borne disease that is in the southeastern and south-central United States. Characterized by marked leukocytosis and periosteal bone proliferation

Question 5

5) Hepatozoonosis occurs most commonly in which regions?
a) The southern US
b) The Mediterranean basin
c) Central asia
d) Australia

Answer 5

a