Tissue damage from extreme cold is similar in appearance to that sustained from heat injuries. Note the large serous filled bulla with edema of the surrounding skin. This is a second-degree frostbite.
Severe or repeated trauma to the auricle may produce areas of subperichondrial separation, shearing and localized hemorrhage which result in devitalization of the underlying auricular cartilage. This...
A neomycin -containing ointment has produced in this patient and erythematous weeping allergic reaction which has tracked inferiorly along the path of the secretions.
Herpes zoster is an acute localized viral infection of the skin caused by the varicella zoster virus. This large DNA-containing virus of the herpes virus group causes in the early stage scattered pustules...
Preauricular tags are small congenitpedunculated projections arising from the skin along the anterior border of the external ear. The most common location for a preauricular tag is just anterior to the...
The term "microtia" is used when there is a gross under development of the pinna with a blind or absent external auditory canal. Congenital malformations of the external ear are frequently associated...
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![Mastoiditis Draining into the External Canal [right ear]](https://medtube.net/images/min/5dfbf0e8195b9554a6eaef654167cbf4/149/112/1 "Mastoiditis Draining into the External Canal [right ear]")
![Microtia of the Ear [left]](https://medtube.net/images/min/3ae76e03ecf85c74a4abc56c060fd441/149/112/1 "Microtia of the Ear [left]")
