Abstract
ObjectivesTo report an extremely rare case of ovarian borderline mucinous cystic tumor accompanied by low-grade endometrial stromal sarcoma (LGESS) with myxoid change.Case presentationA 42-year-old woman complained of lower left abdominal fullness. Her serum carcinoembryonic antigen, cancer antigen (CA) 125, and CA19-9 levels were normal. Magnetic resonance imaging showed a 10-cm cystic mass with a 5-cm nodule in its wall, and a laparoscopy indicated a cystic mass at the left adnexa. Histology indicated a cystic lesion consisting of proliferative gastrointestinal-type epithelium; the mural nodule had a characteristic of striking myxoid change, preservation of arteriolar pattern, and a “tongue-like” infiltration.ConclusionsThe diagnosis of ovarian mucinous borderline tumor accompanied by LGESS with myxoid change was appropriate.
Highlights
Mucinous cystic tumors of the ovary, whether benign, borderline, or malignant, may be associated with mural nodules of various types, including sarcomas, sarcomalike mural nodules, foci of anaplastic carcinoma, carcinosarcoma, mixed nodules, and leiomyomas [1, 2]
The diagnosis of ovarian mucinous borderline tumor accompanied by low-grade endometrial stromal sarcoma (LGESS) with myxoid change was appropriate
The subject of this report is a mural nodule with features of a low-grade endometrial stromal sarcoma (LGESS) with myxoid change arising in an ovarian mucinous borderline tumor
Summary
Mucinous cystic tumors of the ovary, whether benign, borderline, or malignant, may be associated with mural nodules of various types, including sarcomas, sarcomalike mural nodules, foci of anaplastic carcinoma, carcinosarcoma, mixed nodules, and leiomyomas [1, 2]. The subject of this report is a mural nodule with features of a low-grade endometrial stromal sarcoma (LGESS) with myxoid change arising in an ovarian mucinous borderline tumor. Case report A 42-year-old woman complained of lower left abdominal fullness. Her serum carcinoembryonic antigen (CEA), cancer antigen (CA) 125, and CA19-9 levels. The cyst measured 10 cm in maximal diameter and had a thickness of 0.2–0.5 cm. This cystic tumor focally adhered to the peritoneum. The cyst had a solid mural nodule protruding from the wall into the lumen measuring up to 5 × 4 × 4 cm in size (Fig. 1a). The cut surface was fleshy and gray with the area of hemorrhage and necrosis (Fig. 1b)
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