Cista (Cyst) yra uždaras maišelis. cista (cyst) gali būti užpildyta oro, skysčiais arba pusiau kietąja medžiaga. Pūlių rinkinys vadinamas abscesu, tačiau tai nėra cista. Cistą gali tekti pašalinti chirurginiu būdu, tačiau tai priklausys nuo jos tipo ir vietos.
A cyst is a closed sac, having a distinct envelope and division compared with the nearby tissue. Hence, it is a cluster of cells that has grouped together to form a sac (like the manner in which water molecules group together to form a bubble); however, the distinguishing aspect of a cyst is that the cells forming the "shell" of such a sac are distinctly abnormal (in both appearance and behaviour) when compared with all surrounding cells for that given location. A cyst may contain air, fluids, or semi-solid material. A collection of pus is called an abscess, not a cyst. Once formed, a cyst may resolve on its own. When a cyst fails to resolve, it may need to be removed surgically, but that would depend upon its type and location.
Ganglion cyst ― Besimptomiai gumbai, atsirandantys staiga tarp sąnarių. Jei ganglioninės cistos diagnozė pasitvirtina, problemą galima išspręsti stipriai paspaudus mazgą, kad cista susprogtų viduje.
Mucocele ― Jis atrodo kaip minkštas guzas ant lūpų be jokių simptomų.
