We present a unique case of high-grade serous carcinoma isolated to the spleen at the time of diagnosis, without any tumor present in the ovary, fallopian tubes, omentum or uterus, which was pathologically consistent with metastatic Mullerian carcinoma. Tumor sequencing with the MSK-IMPACT (Memorial Sloan Kettering-Integrated Mutation Profiling of Actionable Cancer Targets) multigene tumor panel test was performed, which revealed somatic mutations in PALB2 and in ARID1, as well as a TP53 hotspot mutation.
Keywords: ARID1 somatic mutation; High-grade serous carcinoma; PALB2 mutation; Pluripotent spleen cell; Splenic Mullerian carcinoma; TP53 hotspot mutation.
© 2021 The Authors.