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  • Title: [Appendiceal mucoceles. A case report].
    Author: Emmi S, Galasso MG, Ursino V, Scala R, Guastella T.
    Journal: Minerva Chir; 1998 Oct; 53(10):807-10. PubMed ID: 9882971.
    Abstract:
    A case of benign mucocele presenting as a subocclusive syndrome is reported; the surgical treatment consisted in a right colectomy. Appendiceal mucoceles are rare lesions of the appendix, characterized by a gross enlargement of the appendix from accumulation of mucoid substance within the lumen. It is a rare condition, encountered in only 0.1-0.4% of all appendectomies with a female predominance and an average age at the time of diagnosis over 50 years. Following careful review of the literature, the difficulties in differential diagnosis are underlined, especially between benign and malignant forms and the possibility of a pre-operative diagnosis is examined. Abdominal ultrasound and CT scan of the abdomen or colonoscopy may suggest the diagnosis. However, often the diagnosis is an incidental event. The pathogenesis, histologic aspect of the lesion and the different surgical strategies are discussed. A frozen section examination should be performed in all patients, while the abdomen is open, because it may be impossible to predict the underlying pathology merely by inspecting the serosal surface of a dilated appendix. If a simple retentional cyst is uncovered, without atypia, appendectomy should be curative; if cystadenoma or cystadenocarcinoma of the appendix are found, more extended resection was necessary. However if the operation is done as an emergency, a frozen section examination is not always available: in those patients a more extended resection is suggested.
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