MDS PREP
The commonest opportunistic infection in AIDS cases in India
1) Pneumocystic carinii
2) Cryptococcal meningitis
3) Toxoplasmosis
4) Tuberculosis
Oral Pathology
Answer: 1
Explanation: A compound odontoma is a type of odontogenic tumor that consists of multiple small tooth-like structures (denticles) and resembles the anatomy of normal teeth. In contrast, a complex odontoma has a more disorganized structure and does not resemble normal teeth.
Leukaemia should be high on a list of differential diagnosis when which of the following is noted?
1. Spontaneous bleeding
2. Persistent headache
3. Epigastric pain
4. Chronic or acute arthralgia
Oral Pathology
Answer: 1
Spontaneous bleeding is a key indicator for considering leukemia in differential diagnosis.
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.
Defect leading to thalassemia lies in -
1) Haemoglobin
2) Osmotic fragility
3) RBC membrane
4) Platelets
General Pathology
Answer: 1
The defect leading to thalassemia lies in the hemoglobin itself, specifically in the globin chain synthesis.
What is the most likely diagnosis in an 8-month-old child with mental retardation, blindness, and muscle weakness, with a deficiency of hexosaminidase ?-subunit?
1) Tay-Sachs disease
2) Krabbe disease
3) Sandhoff disease
4) Gaucher disease
General Pathology
Answer: 1
Tay-Sachs disease is characterized by a deficiency of hexosaminidase A, leading to neurodegeneration, mental retardation, and blindness in affected infants.
Pink"s disease is due to
1. Toxicity of silver
2. Toxicity of mercury
3. Toxicity of lead
4. Toxicity of tetracycline
Oral Pathology
Answer: 2
Pink's disease is due to the toxicity of mercury.
A young patient who has a long standing habit of sucking lemons has loss of tooth substance affecting the anterior teeth. The correct term for this gradual loss of tooth substance is called
1. Abrasion
2. Attrition
3. Erosion
4. Intrusion
Oral Pathology
Answer: 3
The gradual loss of tooth substance due to sucking lemons is called erosion.
Which of the following cell types show abnormal function when there is a history in a young adult of multiple arm and leg fractures following minor falls?
1) Granulocytic stem cells
2) Megakaryocytes
3) Plasma cells
4) Osteoclasts
Osteoclasts show abnormal function in conditions leading to multiple fractures, as they are responsible for bone resorption.