Pathology Which of the following is a manifestation of 22q11 mutation syndrome? A Hypercalcemia B Conotruncal abnormalities C Thymic hyperplasia D Dysmorphogenesis of the 1st and 2nd pharyngeal pouches 💡 Explanation Which of the following is a manifestation of 22q11 mutation syndrome? ✓ Correct Answer: B. Conotruncal abnormalities