MDS PREP
Osteoradionecrosis is due to
1. Endarteritis of blood vessels
2. Damage to periosteum
3. Damage to lymphatics
4. All of the above
Oral Pathology
Answer: 1
Osteoradionecrosis is due to endarteritis of blood vessels.
Virchow’s triad includes all except:
1) Injury to vein
2) Venous thrombosis
3) Hypercoagulability of blood
4) Venous stasis
General Pathology
Answer: 2
Venous thrombosis is not part of Virchow’s triad; the triad includes injury to the vein, hypercoagulability, and venous stasis.
Hypersensitively reaction seen in stomatitis venenata is
1. Type I
2. Type II
3. Type III
4. Type IV
Hypersensitivity reactions seen in stomatitis venenata are classified as Type IV.
What condition is typically characterized by a malar rash, arthritis, serositis, and the presence of antinuclear antibodies?
1) Goodpasture's syndrome
2) Friedreich ataxia
3) Huntington's disease
4) Systemic lupus erythematosus (SLE)
Systemic lupus erythematosus (SLE) is characterized by a malar rash, arthritis, serositis, and the presence of antinuclear antibodies.
Apoptosis is suggestive of?
1. liquifaction degeneration
2 coagulation necrosis
3 neo angiogenesis
4 eithelial dysplasia
Pathology
Answer: 2
Cells die by one of two mechanisms – necrosis or
apoptosis
• Two physiologically different processes
– Necrosis – death by injury
– Apoptosis – death by suicide
Appoptosis:
Disintegration of cells into membrane-bound particles that are then eliminated by phagocytosis or by shedding.
Mean exposure at skin from an intraoral periapical radiographs
1. 300 mR
2. 0.03 mR
3. 47 mR
4. Both A and B
Oral Pathology
Answer: 4
Mean exposure at the skin from intraoral periapical radiographs is 0.03 mR.
What is the typical presentation of the severe form of osteopetrosis?
1) Asymptomatic in adulthood
2) Death in childhood
3) Mild symptoms in childhood
4) Normal bone density
The severe form of osteopetrosis typically presents with death in childhood due to complications from the disease.
Crew haircut appearance in X-ray skull and Gamna Gandy bodies are seen in -
1) G-6-PD deficiency
2) Hodgkin's lymphoma
3) Hereditary spherocytosis
4) Sickle cell anaemia
General Pathology
Answer: 4
Crew haircut appearance in X-ray skull and Gamna Gandy bodies are associated with sickle cell anemia due to chronic hemolysis and bone marrow hyperplasia.