Diverticulitis apendicular: Estudio comparativo de 7 casos versus 442 apendicitis agudas / [Appendiceal diverticulitis: comparative study of 7 cases versus 442 acute appendicitis].

BACKGROUND: Appendiceal diverticulitis (AD) is a rare cause of acute appendicitis (AA) which is most frequently diagnosed after appendectomy in pathological study. OBJECTIVE: To compare AA versus AD. METHODS: Retrospective analytic study in avperiod of 51 months fom January 2009 to March 2013 in the Hospital Universitario San Juan de Alicante (Spain), including patients with clinical or radiological suspicious of acute appendicitis which was confirmed intraoperatively and with the pathological study. RESULTS: We included 449 patients, 442 typical AA (98.5

) and 7AD (1.5

). DA was more frequent in women (57

) with a median age of 44 years old (range 37 to 57 years old), whereas AA was more frequent in men (61

) with a median age of 28 years old (range 15 to 46 years old). Leukocyte count, neutrophils and C-reactive protein were respectively 13,300 per mm3 (range 10,700 to 15,700 per mm3), 87.1

(range 84.6 to 89.6

) and 1.82 mg/dL (range 0.59 to 5.31 mg/dL) in AD versus 14,700 per mm3 (range 12,300 to 17,600 per mm), 81.6

(range 75.1 to 86.4

) and 2.71 mg/dL (range 0.67 to 75 mg/dL) in AA. Alvarado score and appendicitis diagnostic score were respectively 7 (range 6 to 8) and 6 (range 5 to 7) in AD and 7 (range 5 to 7) and 6 (range 5 to 6) in AA. An appendiceal perforation was seen in 3 AD (43

) and 80 AA (18

). CONCLUSION: AD appeared in older patients with a clinical and blood test profile similar to AA but with a higher perforation rate.

Absceso lumbar secundario a colelitiasis retenida / Lumbar abscess secundary to retained gallstones

Los cálculos abandonados tras apertura accidental durante una colecistectomía, generalmente laparoscópica, pueden producir complicaciones tardías, siendo el absceso intraabdominal la más frecuente. El diagnóstico se basa en la prueba de imagen (ecografía/tomografía computerizada), siendo el drenaje y la extracción quirúrgica de los cálculos la mejor opción terapéutica, ya que el drenaje percutáneo presenta una elevada tasa de fracasos. Sin embargo, el absceso en pared abdominal posterior como manifestación inicial de un absceso intraabdominal debido a colelitiasis retenida es poco frecuente, por lo que reportamos este caso.

Lost gallstones after accidental opening of the gallbladder during cholecystectomy usually under laparoscopy, can cause late complications. Intra-abdominal abscess is the most frequent and the diagnosis is based on imaging techniques (abdominal ultrasound or computed tomography scan). Surgical drainage with gallstones removal seems to be the best approach, due to the fact that a simple percutaneous drainage has a high failure rate. However, a posterior abdominal wall abscess as the initial manifestation of intra-abdominal abscess due to retained gallstones is uncommon, and this prompted us to report this case.