D efinition — A teratoma composed principally of thyroid tissue. Clinical Features Epidemiology Struma ovarii is a monodermal ovarian teratoma predominantly composed of thyroid tissue. Seen most commonly in the fifth decade of life. Virtually always unilateral. Contralateral cystic teratoma…
D efinition — A teratoma recapitulating human form. Clinical Features Epidemiology Exceedingly rare, reproductive-age group. You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in…
D efinition — Germinal matrix or cerebellar differentiation in a mature teratoma; mimics immature neuroepithelium. Clinical Features Epidemiology Occurs in typical benign cystic teratoma. You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles…
D efinition — A clinical term for increased mucin present within the abdominal cavity, typically associated with a low-grade mucinous tumor of the appendix or gastrointestinal tract. Clinical Features Epidemiology Pseudomyxoma is frequently associated with appendiceal neoplasms; however, occasional cases…
D efinition — Ovarian spread from remote nongynecologic epithelial neoplasms. Clinical Features Epidemiology Sixty to eighty percent of metastatic tumors are nonmüllerian, including stomach (6% to 14%); colon (7% to 12%); breast (9% to 32%); and rarely lung, biliary duct,…
D efinition — An early form of clear-cell neoplasia with malignant cytology and the absence of invasion. Clinical Features Epidemiology Clear-cell tumors of this type typically present as adenofibromas that can arise de novo or from within endometriotic cysts. Uncommon…
PITFALL D efinition — A rare tumor variant with classic carcinoma and yolk sac differentiation. Clinical Features Epidemiology Extremely rare, limited to isolated reports or small case series. Broad age range but most are postmenopausal, averaging in the early 50s.…
D efinition — A malignant, endometriosis-associated epithelial tumor. Clinical Features Epidemiology Uncommon. Distinct gene expression profile. Present in postmenopausal women with a mean age in the 50s. You’re Reading a Preview Become a Clinical Tree membership for Full access and…
D efinition — An invasive ovarian carcinoma with a transitional growth pattern that contains areas of benign or borderline Brenner tumor. Clinical Features Epidemiology Rare. Can present at a range of ages, but the mean age is in the 60s.…
D efinition — A benign ovarian tumor composed of cells resembling transitional epithelium of the urinary tract. Clinical Features Epidemiology Uncommon but seen periodically in practice. Brenner tumors may represent up to 5% of benign epithelial tumors of the ovary.…