high testosterone without high androgenisation is kind of a hallmark of AIS.  i mean....it kind of defines the condition, yeah?  the other potential thing you might be looking at is 5a reductase deficiency, although that generally (but not always) presents with ambiguous genitalia/hypospadias.  5a reductase will show normal/high testosterone, undervirilisation, and extremely low/absent dihydrotestosterone levels.