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- W2979096719 abstract "Introduction: Appendiceal mucinous neoplasms are one of four appendiceal mucoceles. With an incidence of 0.2-0.3%, they can rupture leading to Psuedomyxoma peritonei. While often asymptomatic, they may present with acute or chronic right lower quadrant pain and obstruction. Surgical resection is advised for benign appearing appendiceal mucoceles as they may harbor a cystadenocarcinoma. Case Report: We present a case of a 51 year old male who presented to clinic with a year and a half of episodic colicky abdominal pain. His pain was localized in the right hypogastrium. The pain was associated with nausea and vomiting. He described a change in the frequency and caliber of his stools. Evaluation for gluten enteropathy and infectious causes were negative. He previously underwent an upper endoscopy a year and a half earlier, which showed only gastric erosions. A colonoscopy at that time was normal to the terminal ileum. Two weeks after his clinic visit, he presented to the hospital for coffee ground emesis. An EGD demonstrated esophagitis and gastritis. A CT scan subsequently demonstrated chronic inflammatory changes with thickening and stranding at the ileocecal junction with an associated partial small bowel obstruction. MR enterography demonstrated a tubular structure in the central lower abdomen extending to the right lower quadrant. He was conservatively managed without resolution of symptoms and surgery was consulted. To evaluate for underlying malignancy or inflammatory bowel disease he underwent a colonoscopy, on which he was found to have a stricture at the hepatic flexure. Out of concern for malignancy, a diagnostic laparoscopy was performed, demonstrating adhesion of the appendix to the omentum. This resulted in an internal hernia through which the transverse colon was trapped. An appendectomy was subsequently performed which demonstrated an appendiceal mucinous neoplasm (cystadenoma). He had a repeat colonoscopy a few months after resection which was normal and followed up with oncology without needing any additional therapy. Conclusion: Though a rare entity, appendiceal cystadneomas can have a variable presentation and may present as abdominal pain and bowel obstruction. This case demonstrates the importance of early detection and intervention as appendiceal cystadenomas are associated with colon adenocarcinoma and pseudomyxoma peritonei and if detected early, it is a potentially curative condition." @default.
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- W2979096719 date "2015-10-01" @default.
- W2979096719 modified "2023-10-16" @default.
- W2979096719 title "A Case of Appendiceal Mucinous Neoplasm (Cystadenoma)" @default.
- W2979096719 doi "https://doi.org/10.14309/00000434-201510001-00996" @default.
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