Michaelis-Gutmann bodies

Q. Michaelis-Gutmann bodies are seen in :
a. Calcifying epithilioma
b. Malakoplakia
c. Pulmonary alveolar microlithiasis
d. Nephrocalcinosis

ANSWER:

Ans: B. Malakoplakia
Michaelis-Gutmann bodies (M-G bodies) are concentrically layered basophilic inclusions found in the urinary tract. They are 2 to 10 μm in diameter, and are thought to represent remnants of phagosomes mineralized by iron and calcium deposits.
M-G bodies are a pathognomonic feature of malakoplakia, an inflammatory condition that affects the genitourinary tract.