The extracellular matrix molecule, laminin, induces purkinje cell dendritic spine proliferation in granule cell depleted cerebellar cultures

Some thyroid neoplasms notoriously cause problems in the histologic diagnosis of their nature (follicular versus papillary for example) or their malignant potential (adenoma versus carcinoma) because of overlapping histologic features. Here, thyroid lesions are presented according to their histologic presentation (vesicular, papillary, trabecular, solid or cystic patterns, fibrosing thyroids and lymphoid infiltrate). For each entity, the most discriminant histologic features are described with emphasis on the diagnostic pitfalls and their histological clues.