Zebras

I was given a short-notice project, which got postponed (possibly cancelled if I don't push to do it) on *zebras in abdominal pain.

I have come up with 10:
TB of the GI and GU tracts
porphyria
viscerotropic leishmaniasis
abdominal migraine
eosinophilic gastroenteritis
toxocariasis
familial mediterranean fever
lead poisoning
Henoch-Schonlein purpura
rectus sheath hematoma

Any other suggestions? I'd appreciate it.

Oh, there goes my pager (see below).

*zebras = the last thing you should think of when given any symptom complex. "When you hear hoofbeats, think horses [not zebras]