<prompt> Answer this question truthfullyWhat is the underlying biological mechanism or process that causes Hodgkins lymphoma?  <response>: <reason> On gross pathology, affected lymph nodes most often, latero cervical lymph nodes are enlarged, but their shape is preserved because the capsule is not invaded. Usually, the cut surface is white-grey and uniform. In some histological subtypes e.g. nodular sclerosis, the cut surface may have a nodular aspect. 