Appendiceal anomalies are extremely rare malformations that are usually found in adult populations as an incidental finding. Agenesis and duplication of the appendix have been well documented, but we know of only three reported cases of a horseshoe appendix. A 64-year-old woman admitted to the emergency department. A provisional diagnosis of acute appendicitis was made, and the patient was taken to the operating room. While appendectomy was being performed with a standard approach, the distal tip was seen to communicate with the cecum by another stump, or "horseshoe appendix". The aim of this report is to share our experience with this extraordinary finding.Key Words: Appendix vermiformis; horseshoe; malformation.Apendiks anomalileri çoğunlukla erişkin popülasyonda rastlantı sonucu bulunan çok nadir malformasyonlardır. Apendiks agenezis ve duplikasyonu iyi bilinmesine rağ-men, bildirilmiş sadece üç adet atnalı apendiks olgusu bulunduğunu biliyoruz. Acil servise başvuran 64 yaşında kadın hasta akut apandisit ön tanısı ile ameliyathaneye alındı. Standart yaklaşımla apendektomi uygulanırken, "at nalı apendiks" şeklinde distal ucun ikinci bir güdük ile çekumla bağlantılı olduğu görüldü. Buradaki amacı-mız bu sıra dışı bulguyla ilgili deneyimimizi paylaşmak-tır.Anahtar Sözcükler: Appendiks vermiformis; at nalı; malformasyon.doi: 10.5505/tjtes.2013.67424 Appendiceal anomalies are extremely rare malformations that are usually found in adult populations as an incidental finding. Agenesis and duplication of the appendix have been well documented, and the incidences for these anomalies are 0.008% and 0.004%, respectively.[1] However, we know of only three reported cases of a horseshoe appendix. [2][3][4] In this report, we present the fourth case of a horseshoe appendix.
CASE REPORTA 64-year-old woman admitted to the emergency department with a two-day history of right lower abdominal pain, nausea, and loss of appetite. The abdominal examination revealed right lower quadrant tenderness, guarding and rebound tenderness at McBurney's point. All laboratory study results were in normal ranges, and plain chest and abdominal radiographs showed no abnormality. Ultrasonographic examination determined pericecal minimal fluid collection. A provisional diagnosis of acute appendicitis was made, and the patient was taken to the operating room. A standard approach was taken with incision over McBurney's point. The cecum was identified, the taenia coli were followed to their confluence, and an appendiceal stump was found. The distal appendiceal tip was seen to extend to the posteromedial cecum, and there were adhesions that complicated mobilization of the appendix. A decision was made to perform retrograde appendectomy. After appendiceal stump and mesoappendix were ligated and divided, the distal tip was seen to communicate with the cecum by another stump, or "horseshoe appendix" (Figs. 1a, b). Appendectomy was completed. The patient made an uneventful recovery and was discharged two days later.