Interdigital Pyoderma

hotspot: "Interdigital pyoderma -- often erroneously referred to as 'interdigital cysts' though no cyst structure is present -- is located between the toes and pads of the feet. It is a type of cellulitis (a condition where inflammatory fluids are forced into the tissues, rather than being discharged on the surface) that is characterized in the active stages by deep draining tracts of large pustules in one or more interdigital spaces. "

--cysts are the usual definition
E.S.