Fine Needle Aspiration Cytology of Gastric Solitary Fibrous Tumor

Solitary Fibrous Tumor of the Stomach

“…Patients with intra-abdominal SFT most commonly present with a palpable abdominal mass and may complain of vomiting, abdominal pain, or weight loss. However, incidental SFTs, as in the present case, are small tumors that are typically asymptomatic 4-9. The differential diagnosis of gastric SFT includes gastrointestinal stromal tumor, calcifying fibrous tumor, fibromatosis, schwannoma, leiomyoma, leiomyosarcoma, inflammatory myofibroblastic tumor, fibrosarcoma, malignant fibrous histiocytoma, hemangiopericytoma, synovial sarcoma, and malignant mesenchymoma 2-4…”

“…To our knowledge, only 5 cases of gastric SFTs have been reported to date 5-9. The data on previously reported cases is summarized in Table 1.…”

“…The curative wedge resection of the stomach was performed in 3 of 5 cases 5-9. The patients showed a remarkable response with no recurrence on follow-up, even without any specific maintenance therapy.…”

Quiz case of the month

“…However, not all solitary fibrous tumours stain for CD34 and positivity of CD34 is not exclusive for this lesion. Other tumours, such as endothelial, vascular, endocervical stroma, or gastrointestinal tumours, may also stain for CD34 [2,6]. Furthermore, the fixation of the tumour fragment after core biopsies interferes with the expression of CD34.…”

Fine needle aspiration cytology of solitary fibrous tumor of the orbit

“…[1] With disputed histogenesis, the tumor is now considered to be of mesenchymal origin, which explains the divergent location of this lesion. [2] Since the initial description of orbital SFT in 1994, approximately 70 cases of orbital SFTs have been reported. [3] However, literature search shows that cytological features of the lesion have been described in very few cases.…”