Mucinous Carcinomatosis: A Rare Association between an Ovarian Tumor and an E-GIST

Abstract EN

Pseudomyxoma peritonei (PMP) and extragastrointestinal stromal tumors (E-GISTs) are both rare entities.

Most of the time, PMP is associated with an appendiceal tumor.

An ovarian mucinous tumor can mimic appendiceal metastases.

E-GIST is a mesenchymal tumor that can arise from the omentum, retroperitoneum, mesentery, or pleura.

We present a case of an 87-year-old woman with mucinous carcinomatosis and acute intestinal occlusion submitted to an emergency laparotomy.

She has found to have a borderline mucinous tumor of the ovary from the intestinal type with several lesions of pseudomyxoma peritonei and an E-GIST from the epiploons retrocavity (intermediated risk).

In the literature, no relation was found between these two rare tumors.

E-GIST was an incidental finding in the context of a mucinous carcinomatosis.