PubMed · 14171287
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R C GUPTA, V K KAK. 1964-06-01. DOUBLE APPENDIX.. https://pubmed.ncbi.nlm.nih.gov/14171287/
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BACKGROUND: Appendiceal neoplasms are rare. Patients may present with clinical symptoms suggestive of "acute appendicitis" or other unspecific abdominal complaints. An appendiceal mucinous neoplasia is sometimes diagnosed during a laparotomy performed on another indication. Frequently, the condition remains undiagnosed until the pathologists' examination. MATERIALS AND METHODS: We present the case of a 49-year-old woman who presented with symptoms suggestive of acute appendicitis. An appendectomy was performed. The appendectomy specimen revealed a mucinous cystadenoma with a diverticulum in the appendix. The case is discussed in the light of the current literature. RESULTS AND INTERPRETATION: Appendiceal tumours account for less than 0.4% of neoplasias in the gastrointestinal tract and are found in less than 1% of appendectomies. Mucinous lesions ("mucocele") are classified as mucosal hyperplasia, mucinous cystadenoma, or mucinous cystadenocarcinoma. However, there are reports of great variability in the biological behavior, especially concerning the development of pseudomyxoma peritonei. No current consensus exists as to diagnostic criteria or treatment. A radically removed appendix is curative in most cases of mucinous cystadenoma, whereas right hemicolectomy should be considered for patients with malignant mucinous lesions of the appendix.
A 46-year-old female was admitted with increasing fecal drainage via a fistula tract in the right inguinal region. She had a history of surgery for appendicitis 30 years previously, from which there was disturbed wound healing resulting in a blunt fistula, and the patient suffered from contraction of the right hip. Computed tomographic scan and ultrasound demonstrated an inflammatory mass in the right inguinal region. Colonoscopy demonstrated a stenosis of the rectosigmoid junction but did not provide any further specific information. Surgery revealed the presumed diagnosis of complicated Crohn's disease, but an advanced squamous cell carcinoma was also identified. The patient died 23 months later due to generalized tumor. Although malignant transformation of a fistula tract is rare, this case demonstrates that long-standing fistulas should be cured as far as possible without significant morbidity. In the case of incurable fistulas, malignancy must definitely be excluded if the clinical appearance of the fistula changes.
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