Mitral annular calcification is most commonly observed in which age range?

Mitral annular calcification is most commonly observed in which age range?

• A. the fourth decade
• B. the sixth decade of life
• C. the seventh decade
• D. the second decade

Answer: (B)

Mitral annular calcification is an age-related degenerative change of the fibrous ring of the mitral valve. As people age, calcific deposits tend to accumulate along the annulus, so MAC is most commonly seen in middle-aged adults. In practical terms, the highest frequency of MAC is typically reported in individuals in their 50s, making that age range the best answer. It becomes more common as age advances into the 60s and beyond, but the question focuses on where it is most commonly observed, which is the 50s. Younger ages—teens, 20s, and even early 40s—rarely show MAC.

Mitral annular calcification is an age-related degenerative change of the fibrous ring of the mitral valve. As people age, calcific deposits tend to accumulate along the annulus, so MAC is most commonly seen in middle-aged adults. In practical terms, the highest frequency of MAC is typically reported in individuals in their 50s, making that age range the best answer. It becomes more common as age advances into the 60s and beyond, but the question focuses on where it is most commonly observed, which is the 50s. Younger ages—teens, 20s, and even early 40s—rarely show MAC.