Endometriosis: A common cause of chronic abdominal pain in reproductive age females

Endometriosis is the implantation of uterine tissue outside of the uterus and is a common cause of chronic abdominal pain in females of reproductive age affected up to 15% of women with chronic abdominal pain [1]. Due to the proposed etiology of disease by retrograde flow of uterine lining, it is conceivable for endometriosis to occur anywhere within the abdominal cavity, though the most common locations are the ovaries fallopian tubes, bladder, and rectosigmoid colon. A 30-year old female presented for evaluation of an umbilical mass measuring approximately 3 x 3 cm. Contrast enhanced abdominal CT scan revealed multiple soft tissue densities throughout the abdomen and abdominal wall. Subsequent biopsy of the umbilical mass revealed endometrial tissue.