A 27-year-old woman, G1P0, at 12 weeks’ gestation, comes to the obstetrician for a prenatal appointment. Laboratory studies are normal. Dermatologic examination shows scattered hyperpigmented macules as well as freckling in the axillae and groin. This patient’s most likely diagnosis shares the same inheritance pattern as which of the following?
A) Cystic fibrosis
B) Glucose-6-phosphate dehydrogenase deficiency
C) Hereditary spherocytosis
D) Kallmann syndrome
E) Lesch-Nyhan syndrome
