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  • Title: A primary splenic angiosarcoma hepatic metastasis after splenectomy and its genomic alteration profile.
    Author: Cao L, Hong J, Wang Y, Yu J, Ma R, Li J, Wu J, Zheng S.
    Journal: Medicine (Baltimore); 2019 Jul; 98(28):e16245. PubMed ID: 31305404.
    Abstract:
    RATIONALE: Primary splenic angiosarcoma (PSA) is a rare mesenchymal malignancy of the splenic vascular origin often with a dismal prognosis. Genomic profile may provide evidence for the solution of therapy. PATIENT CONCERNS: We reported a case of a 51-year-old woman with splenectomy 4 years ago and the postoperative histopathology diagnosis revealed "splenic hemangioma" with spontaneous rupture. Two years after the operation, the patient's rechecked abdominal computed tomography (CT) showed multiple hepatic occupations. DIAGNOSES: Pathological test suggested PSA hepatic metastasis. INTERVENTIONS: The patient was treated with trans-catheter arterial chemoembolization (TACE) and a pathological diagnosis of PSA was highly suspected in the hepatic biopsy. Four somatic alterations, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA), Fos proto-oncogene, AP-1 transcription factor subunit (FOS), MCL1 apoptosis regulator (MCL1), and phosphoinositide-3-kinase regulatory subunit 1 (PIK3R1) were detected in the tumor tissue using a Next generation sequencing (NGS) technology. The results prompted that the patient may get clinical benefit from using some agents for targeted therapy, Everolimus, Temsirolimus, or Copanlisib. OUTCOMES: The patient refused targeted therapy. As a result, the patient passed away within 51 months after splenectomy. LESSONS: PSA is an aggressive disease that often presented with a high propensity for metastasis and rupture hemorrhage. Some of these mutations were first discovered in PSA and these findings added new contents to the genomic mutation profile of PSA.
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