How to remember differential diagnosis of Acute appendicitis?

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The mnemonic is "APPENDICITIS" itself for the differential diagnosis of Right lower quadrant pain.

A: Appendicitis
P: Pelvic Inflammatory Disease, Period (Menstrual)
P: Pancreatitis
E: Endometriosis, Ectopic pregnancy
N: Neoplasia
D: Diverticulitis
I: Intussusception
C: Cyst (ovarian)
I: Inflammatory bowel disease (Crohn’s)
T: Torsion (ovary)
I: Irritable bowel syndrome
S: Stones

answered Jul 2, 2012 by Mike Junior Resident (2,007 points)
selected Jul 7, 2012 by Sulabh Shrestha
commented Jul 7, 2012 by Sulabh Shrestha Doctor of Medicine (5,553 points)
A Bit extended version:

A : Appendicits
P : PID , Period/Menstruation (Female)
P : Parasites (Oxyuriasis – children, Amoeba – young adults), Pancreatitis (Middle age), Pelvic kidney
E : Endometriosis and Ectopic pregnancy (Female), Enterocolitis (children)
N : Neoplasia (Ca. cecum)
D : Diverticulitis (Children and Young adults), Duodenal ulcer (Middle age)
I : Iliac lymphadenitis and Intusussception (Children)
C : Cystic ovary (Female), Cholecystitis (Middle age)
I : IBD (Chron’s disease)
T : Torsion of undescended testis (Young adults)
I : Irritable Bowel Syndrome
S : Stones
Systemic Diseases (6 P)

Pott’s spine
Preherpetic pain

In Children
*. Mesenteric Lymphadenitis .
*. Abdominal Migraine
*. Non Specific Abdominal Pain
In Females
*. Mid-Cycle pain
*. Pelvic Inflammatory Disease
*. Right sided Ovarian Cyst
*. Endometriosis
*. Right sided Ectopic pregnancy
In Anyone
*. Constipation
*. Crohns Disease
*. Diverticulitis
*. Peptic Ulcer
*. Caecal tumour
*. Gallbladder Disease
*. Cholecystitis
*. Gastroenteritis
*. Rectus Sheath Haematoma
*. Pancreatitis
*. Urinary Tract Infection
*. Kidney stone

answered May 8, 2013 by anonymous