Struma ovarii.
D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006980:Hyperthyroidism / Q000175:diagnosis; D008853:Microscopy; D008875:Middle Aged; D013330:Struma Ovarii / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery