Gynecologic Ultrasound: A Problem-Based Approach

Corpus Luteum and Hemorrhagic Cyst

Synonyms/Description Functional cyst (corpus luteum) No synonym for hemorrhagic cyst Etiology The corpus luteum (CL) is a transient structure formed as a result of ovulation, due to the midcycle luteinizing hormone surge from the pituitary gland. The CL is responsible…

Cesarean Scar Defect

Synonyms/Description Uterine dehiscence Etiology Cesarean sections (C-sections) are performed in the United States at the rate of 20% to 50% of deliveries depending on clinical environment and demographics. The C-section scar is readily visible sonographically in the nonpregnant uterus as…

Cervical Masses

Synonyms/Description None Etiology Cervical cancer accounts for the majority of cervical malignancies and is second to breast cancer in incidence worldwide. Approximately 85% to 95% of cervical cancers are squamous cell carcinomas and develop at the squamous-columnar junction. Adenocarcinomas represent…

Brenner Tumor

Synonyms/Description Transitional cell tumor of the ovary Typically asymptomatic, rare, benign ovarian tumor Etiology These tumors account for approximately 3.2% of ovarian epithelial neoplasms and typically occur in the fourth to sixth decades of life. They belong to the combined…

Bowel Diseases

Synonyms/Description Pelvic masses related to bowel such as appendicitis, endometriosis, colon cancer, Crohn’s disease, ulcerative colitis, diverticulitis, lymphoma, sarcoma, or other bowel-specific diseases identified on a pelvic ultrasound Etiology There are multiple etiologies in this grouping of bowel diseases. The…

Borderline Ovarian Tumor

Synonyms/Description Tumor of low malignant potential (LMP tumor) Etiology Ten to fifteen percent of epithelial ovarian tumors are considered borderline malignancies. They tend to occur in women in their forties and fifties, younger than those with frankly invasive tumors, and…

Bladder Masses

Synonyms/Description Bladder tumor Focal bladder lesion Etiology Transitional Cell Cancer In the United States, bladder cancer is reportedly the fourth most common malignancy. The vast majority of bladder neoplasms arise from the epithelium, with urothelial (transitional cell) carcinoma accounting for…

Atrophic Endometrium

Synonyms/Description Endometrial atrophy Etiology Endometrial atrophy is most often the result of postmenopausal status, although it may also occur in premenopausal women with lack of estrogen from other etiologies. You’re Reading a Preview Become a Clinical Tree membership for Full…

Appendiceal Mucocele

Synonyms/Description A mucocele is an appendiceal mass characterized by hypersecretion of mucus contained within the appendix causing dilatation of the lumen. Etiology Mucoceles of the appendix are caused by excessive mucous production secondary to retention cyst (simple) (18%), mucosal hyperplasia…

Adhesions (Peritoneal Inclusion Cyst)

Synonyms/Description Benign adhesions trapping fluid Etiology Peritoneal inclusion cysts develop from peritoneal adhesions trapping fluid, often generated from an active ovary. The normal peritoneum absorbs fluid regularly. When the peritoneum is injured, as can occur with surgery, infection, or endometriosis,…