Editing Urethral Tumours (section)

=== Anatomy ===

* '''The female urethra has been divided into an anterior segment (distal 1/3rd) and a posterior segment (proximal 2/3rd)'''
** '''Anterior segment'''
*** '''Lined by stratified squamous epithelium''' '''Posterior segment'''
*** '''May be excised while urinary continence is maintained'''
*** '''Lined by typical urothelium'''
* '''Lymphatic drainage:'''
** '''Anterior urethra and labia'''
*** '''Drain into'''
**** '''Superficial inguinal nodes and then to the deep inguinal nodes''' '''Posterior urethra'''
*** '''Drains into'''
**** '''External iliac nodes (primarily)'''
**** '''Internal iliac/hypogastric and obturator lymph node (secondarily)'''
** Crossover and communications are possible