Perigastric solitary fibrous tumor (SFT) diagnosed on fine needle aspiration: A case report and review of literature.

摘要: Solitary fibrous tumor (SFT) is a mesenchymal initially described in the pleura. When located pleura and classic histologic findings are present, diagnosis of SFT can be straightforward. However, cytologic perigastric challenging due its rarity with only one cytology case report. Another confounding factor potential mimicry other perigastric/gastric tumors. Herein, we report diagnosed on conjunction immunohistochemical stains. The patient 79-year-old woman who presented an enlarging mass computerized tomography scan which was highly concerning for saccular aneurysm. Endoscopic ultrasound (EUS) revealed 6.6 cm hypoechoic lesion abutting stomach. An EUS-guided fine needle aspiration performed. smears showed singly scattered to clusters bland spindle cells scant cytoplasm dispersed bloody background. cell block similar focally supported by collagenized stroma. Immunohistochemical stains performed were positive CD34, BCL2, STAT6 negative CD117, DOG1, CD31, ERG-ENDO, AE1/AE3, S-100, desmin, synaptophysin, supporting solitary tumor.