Background: Non-epithelial gastrointestinal (GI) tumors are rare, heterogeneous neoplasms of mesenchymal, lymphoid/hematopoietic, or neuroendocrine origin. Limited comprehensive data hinder early diag

Objective: Controversial results related with the ageing-related histological and stereological changes have been reported. We aimed to investigate the effects of ageing on stomach and jejunum of Spra