Department of Anatomical Pathology, Ibn Sina University Hospital, Morocco
Case Report
Rectal Gastrointestinal Stromal Tumors: Usefulness of Endoscopic Ultrasound
Author(s): Maroua Saidi Idrissi*, M Salihoun, A Acharki, K Znati and N Kabbaj
Rectal gastrointestinal stromal tumors (GIST) account for 0.1% of all rectal tumors. They are generally diagnosed
in adults over 50 years of age with non-specific symptoms. Immunohistochemistry performed on biopsy tissue
sample confirms the diagnosis. In this study, we report two cases of histologically and immunohistochemically confirmed
rectal GISTs diagnosed using Endoscopic ultrasound (EUS) with fine needle aspiration (FNA), a procedure of
crucial value in the diagnosis of these tumors.
Both patients were male, presenting with non-specific symptoms. Standard endoscopy showed a rectal mass in
both cases, biopsies were negative. EUS showed a well-defined hypoechoic mass and evaluated adjacent organs
and of blood/lymphatic nodes involvement. EUS-FNA was performed in both cases. Cytology and immunocytochemistry
studies showed spindle cell pattern with posi.. View More»
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