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Clin J Gastroenterol ; 17(1): 198-203, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37831375

ABSTRACT

A 48-year-old woman underwent transcatheter arterial embolization (TAE) for a splenic artery aneurysm, which resulted in a partial splenic infarction in the middle lobe. Five years after TAE, a 20-mm diameter mass in the noninfarcted area of the spleen was detected on imaging, which grew to 25 mm in diameter after 6 months. MRI after gadolinium administration showed a 35 × 34 mm mass within the superior pole and 15 × 12 mm mass within the inferior pole. The patient underwent laparoscopic splenectomy and had an uneventful postoperative recovery. No evidence of recurrence was observed during the 2-year follow-up period after surgery. The mass was pathologically confirmed to be sclerosing angiomatoid nodular transformation (SANT) of the spleen. While some studies hypothesize that SANT is a response to vascular injury or trauma, to the best of our knowledge, there have been no previous reports of SANT occurring after procedures directly affecting splenic blood flow. Additionally, multifocal SANTs are reported to be very rare, accounting for only 4.7% of all reported SANTs of the spleen. We highlight a rare course of SANT of the spleen and discuss the possible relationship between blood flow abnormalities and the appearance of SANT.


Subject(s)
Aneurysm , Embolization, Therapeutic , Gastrointestinal Diseases , Splenic Diseases , Splenic Infarction , Splenic Neoplasms , Female , Humans , Middle Aged , Splenic Diseases/surgery , Splenic Infarction/diagnostic imaging , Splenic Infarction/etiology , Splenic Infarction/therapy , Sclerosis , Splenic Artery/diagnostic imaging , Splenectomy/methods , Aneurysm/complications , Aneurysm/diagnostic imaging , Aneurysm/surgery , Splenic Neoplasms/complications , Splenic Neoplasms/diagnostic imaging , Splenic Neoplasms/surgery
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