What is another term for functional cyst?

A functional cyst is specifically related to the normal functioning of the ovaries during the menstrual cycle. These cysts are often part of the ovulation process, arising from the follicles or corpus luteum that develop and might not completely resolve, leading to a cyst formation that typically is benign. The term "simple cyst" appropriately describes these functional cysts, which are generally unilocular and fluid-filled, without any complex internal structures or septations–indicating that they are typically non-cancerous and often resolve on their own without intervention.

In contrast, complex cysts typically have multiple compartments or solid areas and may warrant further investigation due to their potential to be more serious. Nonfunctional cysts usually refer to those not related to the normal physiological processes of the ovaries, whereas epithelial cysts are specific to the lining of the ovary and may include other types of cystic formations like dermoid or endometrioma cysts that are not categorized as functional. Simple cysts accurately capture the characteristics of functional cysts, reinforcing why this term is synonymous with them.