EDUCATION > Courses and Products > E-Learning > Pathology for Urologists

Pathology for Urologists

Vascular Tumors


Image A
(click on the image above)

Image B
(click on the image above)

Hemangioma

  • Benign vasoformative tumor composed of endothelial cells.
  • Cystoscopy shows bluish nodular bladder lesion; can be multifocal.
  • Mostly are cavernous type and tumor cells lack cytologic atypia (image A).
  • Some lesions may represent vascular malformation.
  • Immunohistochemistry: like normal endothelial cells, expresses CD31 and CD34 (rarely necessary for diagnosis).

Angiosarcoma

  • Malignant vasoformative tumor arising from endothelial cells.
  • Very rare in the bladder.
  • Histologically, have more atypical spindle and epithelioid cell features (image B).
  • Immunohistochemistry: expresses CD31 and CD34 (for confirmation).

ADVERTISEMENT

ADVERTISEMENT
Donate
Contact
Press/Media
Sections
Term of Use
Site Map


ADVERTISEMENT