Bi-polar d/o, schizophrenia, substance abuse, ptsd, anxiety d/o, depression - though none have the persistent sx & behaviours of personality d/o. Also possible to have one of these dx & a personality d/o.
Hyperthyroidism, structural brain disease→ tumor/other, complex seizures, lupus/other cns vasculitides, neurosyphliis - all have other features, & none w/enduring characteristics of personality d/o