Mucinous Cystadenocarcinoma of the Appendix Invading the Ascending Colon with Fistula Formation: Report of a Case

Miyakura, Yasuyuki; Iwai, Hidetaka; Togashi, Kazutomo; Horie, Hisanaga; Nagai, Hideo; Kishaba, Yuka; Sato, Koichi; Azuma, Hiroshi

doi:10.1007/s00595-007-3488-6

Cited by 10 publications

(10 citation statements)

References 7 publications

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“…There was no case in which an adenoma existed on the other orifice. There was one report in which a mucinous cystadenocarcinoma of the appendix invaded the ascending colon with fistula formation [10]. It could be argued that our case did not represent an anomaly of the appendix, but rather a fistula caused by an appendiceal neoplasm.…”

Section: Discussionmentioning

confidence: 77%

A case of a horseshoe appendix

et al. 2016

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Anomalies of the appendix are extremely rare, and a horseshoe appendix is even rarer. A literature search has revealed only five reported cases. In this report, we present a case of a horseshoe appendix.A 78-year-old man was referred for further examination following a positive fecal occult blood test. A mass in his ascending colon was detected on colonoscopy, while computed tomography showed that it was connected to the appendix. Tumor invasion derived from the ascending colon or appendix was suspected. We diagnosed ascending colon cancer prior to laparoscopic ileocecal resection. Macroscopic findings showed that the appendix connected to the back side of the mass, while microscopic findings showed that the mucosa and submucosa were continuous from the appendiceal orifice in the cecum to the other orifice in the ascending colon, where a type 1 tumor was observed on the orifice. We eventually diagnosed the patient with tubulovillous adenoma and a horseshoe appendix.A horseshoe appendix communicates with the colon at both ends and is supplied by a single fan-shaped mesentery. Cases are classified by the disposal of the mesentery and the location of the orifice. Anatomical anomalies should be considered despite the rarity of horseshoe appendices.

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Section: Discussionmentioning

confidence: 77%

A case of a horseshoe appendix

et al. 2016

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“…A number of case reports have been published within the past several decades describing various types of fistulous tracts. The most common organs involved include skin,8-12 bladder,13-20 vagina,21,22 and colon 23,24. In the majority of the cases reviewed, patients were symptomatic from the fistula formation, and this eventually led to the diagnosis of appendiceal mucinous neoplasm upon further investigation via imaging, endoscopy, or surgical exploration.…”

Section: Discussionmentioning

confidence: 99%

Diarrhea Concealing a Duodenal-Cecal Fistula Secondary to Appendiceal Mucinous Neoplasm

Aung

Cheung

Prather

et al. 2017

ACG Case Reports Journal

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Primary mucinous adenocarcinoma of the appendix is a rare gastrointestinal malignancy. Fistulous tract formation is a complication that is cited in literature. An 85-year-old man with multiple comorbidities presented with several weeks of persistent non-bloody diarrhea. Laboratory work-up was non-diagnostic. Abdominal imaging with barium contrast showed an enterocolonic fistulous tract extending from the duodenum to the cecum involving an enlarged appendiceal mass. Subsequent biopsy confirmed mucinous appendiceal neoplasm with peritoneal spread to the liver and mesentery. This is the first report describing an enterocolonic fistula formation resulting from this malignancy.

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“…Mucinous cystadenocarcinomas demonstrate high-grade cellular dysplasia and frequently invade the stroma beyond the muscularis mucosa [2]. Mucoceles of the colon are uncommon [1, 3].…”

Section: Discussionmentioning

confidence: 99%

“…Mucoceles of the colon are uncommon [1, 3]. Almost all such tumors occur at the appendix [2, 4, 5, 6]. To our knowledge, this is the first report of mucinous cystadenocarcinoma on the cecum wall during pregnancy.…”

Section: Discussionmentioning

confidence: 99%

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Mucinous Cystadenocarcinoma of the Colon during Pregnancy

Tanaka¹,

Sakurai²,

Misumi³

et al. 2009

Case Rep Gastroenterol

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A rare case of mucinous adenocarcinoma of the cecum in a pregnant woman is described. A 32-year-old Korean woman was diagnosed as having an abdominal tumor immediately after giving birth. Abdominal computed tomography demonstrated a smooth mass measuring 10 cm in diameter on the right side of the abdomen. Acute abdomen developed 3 days after birth. At emergency surgery, volvulus of a polypoid tumor was detected at the cecum apart from the normal appendix. We successfully performed a tumorectomy; however, histopathological examination demonstrated mucinous adenocarcinoma with a massive blood clot.

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Mucinous Cystadenocarcinoma of the Appendix Invading the Ascending Colon with Fistula Formation: Report of a Case

Cited by 10 publications

References 7 publications

A case of a horseshoe appendix

A case of a horseshoe appendix

Diarrhea Concealing a Duodenal-Cecal Fistula Secondary to Appendiceal Mucinous Neoplasm

Mucinous Cystadenocarcinoma of the Colon during Pregnancy

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