Epithelial cells have an apical–basolateral axis of polarity, which is required for epithelial functions including barrier formation, vectorial ion transport and sensory perception. Here we review ...

Interdigital cysts are firm, raised subcutaneous inflammatory lesions found in and on the interdigital webs of the paw. The cause is usually a traumatically ruptured hair follicle. The surrounding ...

What Is an Abscessed Tooth? An abscessed tooth is one that is infected in or around the root, creating a pocket of pus. Anyone, from children to the elderly, can get one. If you have one, it won’t get ...

Marisa Garshick, MD, FAAD, is a board-certified dermatologist and clinical assistant professor of dermatology. Skin lesions can be primary (present from birth or develop later in life) or secondary ...