Cytopathologic diagnosis of fine needle aspiration biopsies of thyroid nodules.

Fine-needle aspiration (FNA) cytology is an important diagnostic tool in patients with thyroid lesions. Several systems have been proposed for the cyropathologic diagnosis of the thyroid nodules. However cases with indeterminate cytological findings still remain a matter of debate.

Gastrointestinal stromal tumors (GISTs): an updated experience.

Background: Gastrointestinal stromal tumors (GISTs) are relatively common mesenchymal tumors of the digestive tract characterized by c-KIT mutations. This is a comprehensive review of the current data of the literature on the various aspects of the diagnosis and treatment of these tumors.

Methods: The stomach is the most commonly involved site for these tumors in the digestive tract.