Blue Ear Cyst: A Rare Eccrine Hidrocystoma of the Ear Canal and Successful Endoscopic Excision

<div>Histopathologic examination shows external auditory canal skin with multiple dermal cysts. A focus of normal sweat glands is present between the cysts in the middle of the photomicrograph (arrow).<i> Hematoxylin and eosin stain, 20x.</i></div>

Case Reports in Otolaryngology

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Figure 4: Blue Ear Cyst: A Rare Eccrine Hidrocystoma of the Ear Canal and Successful Endoscopic Excision 