RT Journal Article
SR Electronic
T1 Confined Low Grade Appendiceal Mucinous Neoplasm With Coexisting Distant Metastasis
JF In Vivo
JO In Vivo
FD International Institute of Anticancer Research
SP 295
OP 298
DO 10.21873/invivo.13438
VO 38
IS 1
A1 ARSHI, JUWAIRIYA
A1 PETER, AMARJIT DAVID
A1 LIANG, YUANXIN
A1 HAO, YANSHENG
YR 2024
UL http://iv.iiarjournals.org/content/38/1/295.abstract
AB Background/Aim: Appendiceal mucinous neoplasms (AMNs) are tumors with dysplastic mucinous epithelium, a pushing growth pattern but no infiltrative invasion to the appendiceal wall. Some AMNs are associated with pseudomyxoma peritonei, characterized by intraperitoneal mucinous involvement. Recent studies have demonstrated that LAMNs confined to the appendix have low or no risk for disease recurrence, progression, and peritoneal involvement during follow up. Case Report: Here, we present two extremely rare cases with confined low grade appendiceal mucinous neoplasm (pTis and pT3) and simultaneous extraperitoneal subcutaneous or ovary involvement at the time of diagnosis. Conclusion: Our cases demonstrate that although the primary tumor is limited to the appendix, coexisting distant metastasis may occur on very rare occasions.