Post-transplant lymphoproliferative disorders (PTLD) are morphologically/clinically heterogeneous. The main goal of this study was to define the histogenesis of PTLD ...

Two of the main problems concerning the histogenesis of giant cell tumours of bones have been: (1) the nature and function of the giant cell—this has been variously classified as an endothelial cell, ...

Histogenesis of the rostellar hooks of Taenia crassiceps is described. Rostellar hooks originate through the enlargement of specialized microtriches. Subsequently, hook protein is deposited along the ...