Related Experiment Video
Updated: Jun 24, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
Cutaneous squamous cell carcinoma of the external auditory canal
Abstract:
Cutaneous squamous cell carcinoma (SCC) along with basal cell carcinoma (BCC), collectively known as Nonmelanoma skin cancer (NMSC), are the most common cancers in the United States. Squamous cell carcinoma of the skin is less common than BCC, but is known to be more aggressive with a higher mortality rate. Squamous cell carcinoma of the external auditory canal (EAC) is rare when compared to SCC on other cutaneous sites. Due to the rarity of SCC originating in the EAC, there is currently no universal staging system, making it difficult to analyze data and form a treatment strategy. This is a case of a 76-year-old man who initially presented with actinic keratosis of the EAC that died in just over a year from metastatic cutaneous SCC.
Related Concept Videos
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Anatomy of the Ear
Auditory Pathway
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
The Cochlea
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Unrenewable Cells
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
