Clinicopathological Examination of Six Cases of Appendicular cystomyxoma

• Published in: Nippon Daicho Komonbyo Gakkai Zasshi Vol. 57; no. 7; pp. 407 - 411
• Main Authors: Majima, T., Katsumata, K., Sumi, T., Tomioka, H., Kato, K., Aoki, T., Koyanagi, Y.
• Format: Journal Article
• Language: English
• Published: The Japan Society of Coloproctology 2004
• ISSN: 0047-1801; 1882-9619
• DOI: 10.3862/jcoloproctology.57.407

Six cases of appendicular cystomyxoma that we experienced were examined in the present study as to pre-surgical and during-surgery diagnosis, treatment method, histopathological diagnosis, and prognosis. The patients: five women and one man, ranged in age from 34 to 72 years, with a mean age of 58.2. First, pre-surgical diagnosis provided reliable findings in two cases with CT and MRI examinations proving effective. Then, during-surgery diagnosis of the remaining four cases gave the following results: difficulty in distinguishing the disorder from myxoma of the oviduct in one case, the confirmation of appendicular cystomyxoma together with companion lesions in two cases (pseudomyxoma peritonei), and no other significant finding of appendicular cystomyxoma in the last case accompanied by cecum cancer. Regarding surgery methods, a right hemicolectomy was performed in the two cases of adenoma combined with ascending colon cancer. For the two cases with retention cyst, an appendectomy was performed in one case, and an ileocecumectomy in the other. Of the remaining two cases with adenocarcinoma, resection was performed on the base of the cecum in one case, and an appendectomy was performed in the other case. As for prognosis, the two cases that had manifested disintegrating perforation at the time of laparotomy developed pseudomyxoma peritonei, of which one case resulted in death. The other four cases showed no signs of recurrence. Overall, five-year survival was attained in all of the 5 surviving cases out of 6. Finally, discussion addresses the diagnosis, surgical/treatment methods, and pathological findings, including references to relevant literature.