Pathology MCQs
Pathology MCQs are designed to test a student's understanding of disease mechanisms, histopathology, and clinical correlations. Questions range from general pathology to systemic diseases affecting organs like the liver, lungs, heart, and kidneys. Ideal for MDCAT, NTS, USMLE, and FCPS aspirants, these quizzes help reinforce critical concepts and bridge the gap between theory and clinical application.
Q: Fibrinoid necrosis is characteristically seen in
A) Myocardial infarction
B) Malignant hypertension
C) Rheumatic fever
D) Fat embolism
✅ Correct Answer: B
Explanation: Fibrinoid necrosis occurs in vessel walls during immune-mediated or severe hypertensive damage.
Q: A key feature of liquefactive necrosis
A) Fibrous encapsulation
B) Calcium deposition
C) Tissue hardening
D) Tissue liquefaction due to enzymatic digestion
✅ Correct Answer: D
Explanation: Liquefactive necrosis results in enzymatic digestion of dead cells, forming a liquid mass.
Q: The earliest change in reversible cell injury
A) Cellular swelling
B) Loss of nucleus
C) Nuclear fragmentation
D) Cell membrane rupture
✅ Correct Answer: A
Explanation: Cellular swelling occurs first due to failure of ATP-dependent ion pumps.
Q: Pseudomembranous inflammation is classically seen in
A) Clostridium difficile colitis
B) Asthma
C) Pneumonia
D) Hepatitis A
✅ Correct Answer: A
Explanation: Clostridium difficile infection causes necrosis and formation of a pseudomembrane over colonic mucosa.
Q: Hyperplasia is defined as
A) Increase in cell number
B) Increase in cell size
C) Uncontrolled growth
D) Abnormal cell development
✅ Correct Answer: A
Explanation: Hyperplasia results from hormonal or compensatory stimuli and increases the number of normal cells.
Q: Increased capillary permeability during inflammation leads to
A) Hemorrhage
B) Vasoconstriction
C) Edema
D) Hyperplasia
✅ Correct Answer: C
Explanation: Increased permeability allows fluid and proteins to leak into tissues, causing edema.
Q: A hallmark of chronic inflammation
A) Presence of neutrophils only
B) Edema and redness
C) Mononuclear cell infiltration
D) Absence of macrophages
✅ Correct Answer: C
Explanation: Chronic inflammation is characterized by infiltration of lymphocytes, plasma cells, and macrophages.
Q: The process of opsonization enhances
A) Cell division
B) Inflammation resolution
C) Phagocytosis
D) Blood clotting
✅ Correct Answer: C
Explanation: Opsonization coats pathogens with antibodies or complement, promoting phagocytosis by immune cells.
Q: Eosinophils are particularly involved in
A) Parasitic infections
B) Autoimmune disorders
C) Viral infections
D) Bacterial infections
✅ Correct Answer: A
Explanation: Eosinophils respond to parasitic infections and allergic reactions due to their granule contents.
Q: The role of VEGF in pathology
A) Vasodilation
B) Cell apoptosis
C) Inhibition of angiogenesis
D) Promotion of new blood vessel formation
✅ Correct Answer: D
Explanation: Vascular endothelial growth factor (VEGF) stimulates angiogenesis, especially in tumors and healing wounds.