Introduction: Sclerosing angiomatoid nodular transformation (SANT) of the spleen has been considered a differential diagnosis of splenic lesions since it was originally reported. However, preoperative diagnosis of SANT is often difficult and histopathological examination by surgical resection is required.
Case presentation: Because of a new splenic lesion, a 48-year-old woman was suspected of having metachronous solitary splenic metastasis during her postoperative follow-up for endometrioid and ovarian cancer that occurred 3 years previously. Because there was no metastasis to other sites, laparoscopic splenectomy was successfully performed for diagnosis and treatment. Histopathological examination revealed that the splenic lesion consisted of three distinct splenic vessels, thereby indicating SANT without any cancer cells or lymphoproliferative disorders.
Conclusion: Splenectomy should be considered for the diagnosis and treatment of incidentally detected splenic lesions during follow-up for malignancy.
Keywords: Laparoscopic splenectomy; Sclerosing angiomatoid nodular transformation; Splenic metastasis.
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