What is the scientific name for the point of origin at the center of an intestinal stone mass?

The scientific name for the point of origin at the center of an intestinal stone mass is referred to as the nidus. In the context of stones or calculi, the nidus is the initial site where the stone begins to form. It is typically composed of a small aggregation of organic or inorganic material around which the stone develops. This concept is essential in understanding the formation and treatment of intestinal stones, as recognizing the nidus can help in diagnosing the cause and determining appropriate interventions.

While the other terms like core, focal point, and epicenter may suggest a central position, they lack the specific medical definition associated with the process of stone formation in the intestines. The use of "nidus" is particularly important in a clinical setting when discussing renal stones or intestinal calculi, as it directly connects to the pathology of stone formation and the underlying biological processes involved.