Clonality of multifocal urothelial carcinomas: 10 years of molecular genetic studies.
Multifocal occurrence and frequent recurrence are characteristic features of urothelial carcinomas of both the urinary bladder and the upper urinary tract. To describe the clonal nature of these tumors, 2 theories have been proposed. The monoclonality hypothesis describes the multiple tumors as descendants of a single genetically transformed cell spreading throughout the urothelium. In contrast, field cancerization caused by carcinogen exposure of the urothelium may lead to independent development of synchronous or metachronous nonrelated tumors at different sites of the urothelial tract. In the last 10 years, a multitude of molecular genetic studies have investigated the clonality of multifocal urothelial carcinomas. The majority of studies revealed a monoclonal origin of the multiple tumors. However, most of these studiesPatent application title: Modular checkout counter

Abstract:

A modular checkout counter includes a center showcase having first and
second ends, a generally elongated left hand showcase provided at the
first end of the center showcase, a generally elongated right hand
showcase provided at the second end of the center showcase, a box top
assembly carried by the center showcase, a left rack assembly carried by
one of the center showcase and the left hand showcase and oriented at an
obtuse angle with respect to a longitudinal axis of the left hand
showcase and a right rack assembly carried by one of the center showcase
and the right hand showcase generally adjacent to the left rack assembly
and oriented at an obtuse angle with respect to a longitudinal axis of
the right hand showcase.

Claims:

1. A modular checkout counter, comprising:a center showcase