Appendicitis

Acute appendicitis
Clx
·       N/V, anorexia
Diffuse → Localize (RLQ)
·       Initially: diffuse abdominal pain (visceral pain)
·       Later: Localized RLQ pain (somatic pain)
·       Mild leukocytosis
PEx
·       McBurney point tenderness
·       Psoas sign: pain with right hip extension
·       Obturator sign: pain with right hip internal rotation
·       Revising sign: RLQ pain with LLQ palpation
Dx
·       Clinical
·       CT or US
Tx
·       Appendectomy
·       diarrhea only with retrocecal appendicitis
·       Blumbergsign: rebound tenderness at McBurney’s point
·       Psoas/Obturator sign: raise the patient’s right leg with the knee flexed –> rotate the leg internally at the hip –> increased abdominal pain indicates a positive obturator sign
·       Rovsing’ssign: pressure over the LEFT colon causes pain in the RLQ
·       if u are not sure ––> CT.
Examination signs in appendicitis:
Sign
Findings
Significance
Peritoneal signs
·       Rebound tenderness
·       Involuntary guarding
·       Abdominal rigidity
·       Acute increase in pain after removing the hand from applying pressure
·       Tensing of abdominal wall muscles during palpation of abdomen
·       Persistent tension of abdominal wall muscles
Peritoneal irritation (rupture or impending rupture)
Psoas sign
RLQ pain with extension of right thigh
Abscess adjacent to psoas or retrocecal appendix
Obturator sign
RLQ pain with internal rotation of right thigh
Pelvic appendix or abscess
Rovsing’s sign
RLQ pain with LLQ palpation and retropulsion of colonic contents
Acute appendicitis
Rectal tenderness
·       Right pelvic pain during rectal examination, especially with pressure on right rectal wall
Pelvic appendix or abscess
Psoas Abscess
RF
·       IVDU
·       HIV
·       DM
·       Crohn’s
Path
Spread from another infxn
S/S
·       Fever
·       Lower abd pain → groin
·       Psoas sign: abdominal pain w/ hip extension
Dx
·       Leukocytosis
·       CT is needed for dx
Tx
Abx + Drainage

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