Mounting evidence demonstrates the presence of extragastrointestinal stromal tumor (EGIST) which originates from tissues outside the gastrointestinal (GI) tract and shares overlapping immunohistological features with gastrointestinal stromal tumor (GIST). GIST emanating from prostate is extremely rare. To our knowledge, there are only 3 definitely reported cases of primary prostatic EGIST. Here...

BACKGROUND Gastrointestinal mesenchymal or stromal tumors (GIST) are lesions originated on digestive tract walls, which are treated by surgical resection. Several laparoscopic techniques, from gastrectomies to segmental resections, have been used successfully. AIM Describe a single center experience on laparoscopic GIST resection. METHOD Charts of 15 operated patients were retrospectively r...

BACKGROUND Malignant gastrointestinal stromal tumors (GIST) are rare mesenchymal tumors originating in the wall of the gastrointestinal tract. Myogenic gastrointestinal stromal tumor, a distinctive morphologic variant is characterized by an unusually prominent myxoid stromal background. CASE PRESENTATION We report a case of myxoid variant of GIST in a 42 years old woman presenting as an epiga...

Gastrointestinal stromal tumors (GIST) have been known for over twenty years, but until ten years ago they were a heterogeneous group of neoplasms which included leiomyomas, leiomyosarcomas, leiomyoblastomas and schwannomas. They represent approximately 0.5-3 % of all primary tumors of the gastrointestinal tract, only 5 % of visceral sarcomas, but 80 % of malignant tumors originated in the mese...

s 886 (2013). 31 Urban D, Lewin J, Collins IM, Mooi J, Jefford M.Rechallenge with imatinib in GIST: is more alwaysRIGHT? Lancet Oncol. 15(1), e2–e3 (2013).

BACKGROUND Gastrointestinal stromal tumors (GISTs) are nonepithelial, mesenchymal neoplasms that rarely occur in children. CASE PRESENTATION We present a unique case of a GIST that developed outside the gastrointestinal tract within the mesoappendix of a 6-year old boy. Computed tomography (CT) revealed a slightly lobulated, homogeneous soft-tissue mass, with marked contrast enhancement. CO...

BACKGROUND The diagnosis of gastrointestinal stromal tumors is based on documentation of c-KIT and platelet-derived growth factor-alpha receptors or specific c-KIT mutations. Before the diagnosis of GIST was possible, all cases had been classified as sarcomas or benign tumors. OBJECTIVES To identify cases of GIST formerly diagnosed as abdominal or retroperitoneal mesenchymal tumors. METHODS...