From Wikipedia, the free encyclopedia. The following is a list of the world's largest cruise ships over 100,000 gross tonnes, including ships that are in service, under construction, and out of service.Ships are ranked by gross tonnage.rom Wikipedia, the free encyclopedia. The following is a list of the world's largest cruise ships over 100,000 gross tonnes, including ships that are in service, under construction, and out of service. Ships are ranked by gross tonnage.
Advanced clubbing is obvious, but early clubbing may be difficult to diagnose. Clubbing is present if the transverse diameter of the base of the fingernail is greater than the transverse diameter of the most distal joint of the digit. The nail base angle measures more than 160Â°.
Symptoms & Signs. Clubbed nails were described in ancient times by Hippocrates and is a clinical sign that may accompany a number of different disease processes. Clubbing refers to swelling in the tip of the digit that results in loss of the normal angle seen between the nail and the nail bed. The fingertips appear broader and rounder when clubbing is present.