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: Presence of fibrinous exudate is typical of
A) Pneumonia
B) Tuberculosis
C) Serous cyst
D) Viral hepatitis
✅ Correct Answer: A
Explanation: Fibrinous inflammation, rich in fibrin, often occurs on serosal surfaces, such as in fibrinous pneumonia.
Q: Fatty liver change is mostly due to
A) Autoimmune diseases
B) Alcohol abuse
C) Hypoxia
D) Protein overload
✅ Correct Answer: B
Explanation: Chronic alcohol consumption impairs lipid metabolism, leading to fatty accumulation in the liver.
Q: A granuloma is a type of
A) Acute inflammation
B) Edema
C) Chronic inflammation
D) Tumor
✅ Correct Answer: C
Explanation: Granulomas form during chronic inflammation to wall off persistent pathogens or irritants.
Q: Mast cells play a central role in
A) Viral immunity
B) Granuloma formation
C) Acute bacterial infections
D) Allergic reactions
✅ Correct Answer: D
Explanation: Mast cells release histamine and other mediators that drive allergic responses.
Q: Caseous necrosis appears
A) Dry and firm
B) Cheesy and crumbly
C) Transparent and watery
D) Shiny and elastic
✅ Correct Answer: B
Explanation: Caseous necrosis has a soft, white, cheese-like consistency, commonly seen in tuberculosis.
Q: Common cause of fibrinoid necrosis in vessels
A) Hypoxia
B) Hypertension
C) Diabetes
D) Obesity
✅ Correct Answer: B
Explanation: Fibrinoid necrosis results from immune-mediated or hypertensive vascular injury.
Q: Reactive oxygen species cause cell damage through
A) Osmotic imbalance
B) Increased protein synthesis
C) Lipid peroxidation and DNA damage
D) Direct enzyme activation
✅ Correct Answer: C
Explanation: Reactive oxygen species damage membranes, proteins, and DNA, leading to cell injury or death.
Q: Fatty change in the liver is most often associated with
A) Viral hepatitis
B) Hypoxia
C) Iron overload
D) Alcohol abuse
✅ Correct Answer: D
Explanation: Alcohol interferes with lipid metabolism, leading to triglyceride accumulation in hepatocytes.
Q: A granuloma typically consists of
A) Neutrophils and plasma cells
B) Giant cells, macrophages, and lymphocytes
C) Fibroblasts and endothelial cells
D) Basophils and mast cells
✅ Correct Answer: B
Explanation: Granulomas are organized collections of immune cells formed in response to persistent pathogens or foreign material.
Q: The most common site of amyloid deposition in systemic amyloidosis
A) Kidney
B) Skin
C) Brain
D) Liver
✅ Correct Answer: A
Explanation: The kidneys are frequently affected by amyloid, leading to proteinuria and nephrotic syndrome.