Surgery, Gastroenterology and Oncology
Vol. 26, Nr. 3, Sept 2021
Unusual Histopathological Findings: Analysis of 1870 Appendectomies
Sandra Lopez Gordo, Ricard Frago, Ana Galvez, Esther Kreisler, Sebastiano Biondo
ORIGINAL PAPER, Sept 2021
Article DOI: 10.21614/sgo-26-3-366
Background: The appendiceal disease is a frequent entity, with a non-negligible number of malignancies. There is an association of synchronous appendiceal tumors with other malignancies. The aim of our study is to analyze the number of cases of non-inflammatory appendiceal disease with unusual histopathological findings of appendix samples. Secondary aims are to analyze the recurrence and mortality of appendicular tumors.

Methods: A retrospective cohort study of all the appendectomy specimens in a period of time of 5 years was performed.

Results: A total of 1870 appendectomies were included. Non-inflammatory disease was found in 127 cases (5.5%) and malignant neoplasm in 33 patients (1.76%). Mucinous Cystoadenoma was the most common benign tumor, representing 33.3 % of total cases. The most common appendiceal neoplasm was adenocarcinoma (11 patients) and neuroendocrine tumors (22 patients). Acute appendicitis was the most frequent surgical indications in those patients. In the adenocarcinoma group, older patients were more frequent (p=0.003), as was the presence of abscess (p=0.016). From the appendiceal neoplasm, 30% (10 patients) had a synchronous colorectal or gynecological cancer. Five-year survival for adenocarcinoma and neuroendocrine tumors was 53.6 % (95% CI 51-94) and 45.5 % (95% CI 26-72) (p=0.373).

Conclusions: Histopathological assessment of the appendix will allow early diagnosis of unusual findings and tumors of the appendix.

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Surgery, Gastroenterology and Oncology is indexed in Scopus, CrossRef (DOI: 10.21614/sgo)



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