Primary Carcinosarcoma of the Spleen: A Rare Case Report of Incidental Finding after Splenic Trauma

Abstract

Primary carcinosarcoma of the spleen is a rare, aggressive splenic malignancy. To date, seven cases have been reported in the literature. We report a first case of primary carcinosarcoma of the spleen in France. A 75-year-old woman with a medical history of hysterectomy for uterine adenocarcinoma presented with left hypochondrium pain following blunt abdominal trauma. A splenic mass was noted on computed tomography (CT) scan. A splenectomy was performed by laparotomy. Histology revealed a malignant mixed Mullerian tumor. The PET scan allowed us to confirm that it was a primary lesion of the spleen. She is currently undergoing adjuvant chemotherapy despite the tumor progression. The interest of this case lies in the rarity of primary carcinosarcomas of the spleen and the circumstances of its diagnosis.

Figure 1

(a, b) Voluminous subcapsular hematoma of the upper pole of the spleen of 145 × 126 × 148 mm with low abundance intraperitoneal effusion ((a) axial section; (b) frontal reconstruction).