Mucinous neoplasms of the appendix – case report

06/2020

MUDr. Alena Berková, Ph.D.¹; MUDr. Petr Vlček, Ph.D.¹; MUDr. Ilona Krejčová¹; MUDr. Tamara Vystrčilová¹; MUDr. Vladimír Červeňák²; MUDr. Zdeněk Chovanec, Ph.D.¹; MUDr. Sabina Svobodová³

¹ I. chirurgická klinika LF MU a FN u sv. Anny v Brně

² Klinika zobrazovacích metod LF MU a FN u sv. Anny v Brně

³ Onkologicko-chirurgické oddělení LF MU a FN u sv. Anny v Brně

SUMMARY

Patient, 59year-old, with ulcerative colitis was examined with intermittent abdominal pain. An abdominal ultrasound examination was performed, mucocele of the appendix was suspected, and subsequently confirmed by magnetic resonance imaging. Mucocele is a cystic dilatation of the appendix caused by luminal obstruction leading to intraluminal mucous accumulation. Mucocele is very often asymptomatic. However, due to the potential malignancy and the risk of rupture with development of pseudomyxoma of the peritoneum, mucocele should be surgically removed. Laparoscopic appendectomy was indicated. Histological examination revealed low-grade mucinous neoplasia of appendix, evaluated as pTis according to WHO 2019 and 8^th edition of the TNM classification. Surgical margins were without pathological involvement. According to the histological findings, appendectomy was a sufficient treatment mode, and the patient was further followed up in the oncology and gastroenterology outpatient department.

Key words

appendix vermiformis, mucocele, mucinous neoplasms, pseudomyxoma peritonei