A 5-Year-Old Male Presents with Low-Set Ears, a Fish-Shaped Mouth

Multiple Choice

A 5-year-old male presents with low-set ears, a fish-shaped mouth, and involuntary rapid muscular contraction. Laboratory testing reveals decreased calcium levels. Which of the following diagnosis is most likely?

A) B-lymphocyte deficiency
B) T-lymphocyte deficiency
C) Combined immunological deficiency
D) Complement deficiency