title: Diagnostic challenges in patients with tumors: case 3. Normal-sized ovarian cancer detected by color doppler ultrasound using a microbubble contrast agent.
mesh_terms: D002277:Carcinoma / Q000000981:diagnostic imaging*; D003287:Contrast Media / Q000008:administration & dosage; D003937:Diagnosis, Differential; D005260:Female; D005740:Gases; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D010051:Ovarian Neoplasms / Q000000981:diagnostic imaging*; D010053:Ovary / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D018615:Ultrasonography, Doppler, Color
chemical_list: D003287:Contrast Media; D005740:Gases