Related Experiment Video
Updated: Feb 13, 2026

A Model for Perineural Invasion in Head and Neck Squamous Cell Carcinoma
Published on: January 5, 2017
Invasive keratinizing squamous cell carcinoma of the left external auricular canal and the middle ear - case report
Dănuţ Dincă1, Gabriela Izabela Bălţătescu, Cherana Gioga
1Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, "Titu Maiorescu" University, Bucharest, Romania; cherana_gioga@yahoo.com; Department of Anatomy, Faculty of Dental Medicine, "Ovidius" University of Constanta, Romania; esapte@ymail.com.
Abstract:
The rather low incidence of auricular neoplasms irrespective of localization is likely to cause confusion of diagnosis with the more frequent benign ear pathology. Because of this, the elapsed time until confirmation of the diagnosis facilitates the evolution of the disease to the detriment of the patient's health. The diagnosis of an ear neoplasm can hide under the ordinary appearance of external otitis, chronic otorrhea or episodes of various types of ear pain. Evolution of such a malignant pathology is quite rapid and highly aggressive locoregional complications are the subject of discussions regarding the interpretation of the results of paraclinical tests and the medical-surgical treatment approach that must take into account the histological structure, the size of the tumor, and the invasion of neighboring tissue.
Related Concept Videos
Work Done on a System by External Force
In the presence of a non-conservative opposing force, like friction, some part of the work done...
Anatomy of the Ear
Internal and External Forces
External and Internal Respiration
General External Flow Characteristics
External Anatomy of the Kidney
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...

