Case 2: 3-month-old Boy with Micropenis

Abstract

1. Mustafa Tosur, MD* 2. Lefkothea P. Karaviti, MD, PhD* 1. *Department of Pediatrics, Section of Diabetes and Endocrinology, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX A 3-month-old previously healthy boy was referred to Endocrinology for evaluation of a micropenis. Small phallic size was first noted by a pediatrician at his 2-week-old health maintenance visit. He is feeding well, making good wet and stool diapers. There is no history of any episodes concerning for hypoglycemia. There was no problem during the pregnancy, during delivery, or after birth. The mother denied smoking, consuming alcohol, medication use, or diabetes during pregnancy. He was born at 40 weeks of gestation via vaginal delivery. The birthweight was 3,544 g. He is not taking any medications. His development is appropriate for his age. There is no family history of male infertility, genital ambiguity, or sudden infant death syndrome. Physical examination reveals a weight and height between the 5th and 15th percentile, a high-arched palate, and mild low-set ears. Review of his previous growth charts showed that his weight was at the 65th percentile at birth, the 30th percentile at 2 weeks of age, and the 23rd percentile at 2 months of age and his height was at the 88th percentile at 2 weeks of age and the 68th percentile at …