title: Intraparietal esophageal leiomyomas diagnosed by endoscopic ultrasound-guided fine-needle aspiration cytology: Cytological and immunocytochemical features in two cases.
abstract: Endoscopic ultrasound-guided fine-needle aspiration cytology (EUS-FNAC) has proven to be of significant value as a diagnostic method for the evaluation of esophageal mesenchymal tumors, such as true leiomyomas. Utilizing the cell block procedure, the present study reports the diagnostic approach of EUS-FNAC in two patients affected by this lesion, describing the cytological and immunocytochemical findings. Spindle-shaped elements with elongated nuclei were appreciable; moreover, the cytoplasmatic immunohistochemical positivity for smooth muscle actin and desmin strongly supported the diagnosis of leiomyoma when also taking into account the constant negativity for CD34, CD117 and S100. The differential diagnosis between spindle cell mesenchymal tumors and leiomyomas, and the clinico-therapeutic management of the latter are also discussed in the study.
authors: Department of Human Pathology 'Gaetano Barresi', University of Messina, Messina, I-98125 Italy.
authors: P
authors: P
authors: Todaro
authors: Digestive Endoscopy Unit, Hospital Health Network 'Polyclinic G. Martino', University of Messina, Messina, I-98125 Italy.
authors: S F
authors: SF
authors: Crinò
authors: Department of Human Pathology 'Gaetano Barresi', University of Messina, Messina, I-98125 Italy.
authors: A
authors: A
authors: Ieni
authors: Digestive Endoscopy Unit, Hospital Health Network 'Polyclinic G. Martino', University of Messina, Messina, I-98125 Italy.
authors: S
authors: S
authors: Pallio
authors: Digestive Endoscopy Unit, Hospital Health Network 'Polyclinic G. Martino', University of Messina, Messina, I-98125 Italy.
authors: P
authors: P
authors: Consolo
authors: Department of Human Pathology 'Gaetano Barresi', University of Messina, Messina, I-98125 Italy.
authors: G
authors: G
authors: Tuccari
keywords: cell block; cytopathology; differential diagnosis; esophageal leiomyomas; immunocytochemistry