<s>[INST] small sponge like feeling cysts on fingers raised near joints that some times I can pop, IF they will pop, with a very quick snap pain as they pop under the skin, then skin goes flat. Sometimes they reappear later. Are they ganglion cysts within my finger areas or sign of something else? I am female and 55 [/INST] Hello, * As per the perfect narration of the lesion which is sponge like and disappear quickly within the body, indicate most likely ganglion cyst which is in communication with the internal crevices of the joint space area. * Kindly get an examination with your PCP for further evaluation and if required further reference to the consultant surgeon for the resolution of the same. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.  Patel, General Surgeon </s>