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  • Title: Endoscopic ultrasound-guided fine-needle aspiration cytology in the diagnosis of leiomyomas of the gastrointestinal tract.
    Author: Val-Bernal JF, Martino M, Terán A, Yllera E, Castro-Senosiain B.
    Journal: Rev Esp Patol; 2019; 52(3):154-162. PubMed ID: 31213256.
    Abstract:
    We investigated the efficiency and accuracy of endoscopic ultrasound-guided fine-needle aspiration cytology (EUS-FNAC) in the diagnosis of gastrointestinal leiomyoma (GIL). Between January 2009 and May 2018 we performed 795 EUS-FNAC studies of lesions of the gastrointestinal (GI) tract for various clinical indications. A diagnosis of GIL by cytological and cell block study was made in 14 patients (57.1% males, mean age 53.6 years, range 22-84 years). 7 tumors (50%) were detected incidentally. The lesions ranged in size from 2 to 10cm (mean size 4.4cm). The location of the tumors was: esophagus 7 (50%), stomach 6 (42.9%) and rectum 1(7.1%). The mean size of the symptomatic tumors was 5.2cm (range 3-10cm). The follow-up of the 14 patients varied from 1 to 108 months (median 39.5 months), during which no recurrence or evidence of lesion progression was observed. Imaging alone was not sufficient for an accurate diagnosis to be made. The pathological diagnosis was based on a combination of cytological, histopathological, and immunohistochemical features. The intracytoplasmic eosinophilic globule is a useful marker of paucicellular GIL differentiating it from gastrointestinal stromal tumor and leiomyosarcoma. EUS-FNAC is a reliable, accurate, and safe method for the diagnosis of GIL.
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