I have an exam soon and I was struggling with this, so, I made this up!
To remember causes of Acute Pancreatitis, you need to think of none other than your nursery school days! :P
So, here we go- ABCDEFGHI, (oh wait did I just say "HI" :P)
Now going a little off track, but, when I was small I used to do a lot of gardening, so I remember rest of the causes as Me POT.
Alcohol ingestion (acute or chronic)
Connective tissue diseases- SLE, TTP, PAN
Drugs- diuretics- frusemide, thiazide. (Others are anti retroviral drugs, sulphomamides, tetracycline, tamoxifen, etc)
Hereditary Pancreatitis/ Hyperparathyroidism/ hypercalcemia/ Hypertrigylceridemia
Metabolic conditions - renal failure,
Penetrating Peptic Ulcer
Trauma to abdomen
Phew, a long list. Isn't it?
Hope it helps!!