Table 2.

Diagnostic differences in ischaemic and non ischaemic priapism

	Ischaemic priapism	Non-ischaemic priapism
Corpora cavernosa fully rigid	Usually present	Seldom present
Penile pain	Usually present	Seldom present
Abnormal cavernous blood gases	Usually present	Seldom present
Blood abnormalities and haematological malignancy	Sometimes present	Seldom present
Recent intracavernous vasoactive drug injections	Sometimes present	Seldom present
Chronic, well-tolerated tumescence without full rigidity	Seldom present	Usually present
Perineal trauma	Seldom present	Sometimes present

Shows diagnostic differences in signs and symptoms between ischaemic and non-ischaemic priapism as outlined by the AUA^[1]