Kaposi–Juliusberg syndrome in a young man with Jacobsen syndrome

A 21-year-old man with Jacobsen syndrome, a rare 11q terminal deletion disorder associated with developmental delay, thrombocytopenia, and combined immunodeficiency, presented with dysuria, penile balanitis, after recent unprotected oral sex with a male partner. Initial empirical therapy with doxycycline and ceftriaxone was started for presumed sexually transmitted infection.