telangiectatic
Pronunciation: tel-an-jee-ek-TAT-ik
Characterized by prominent vascular spaces and blood-filled cavities, describing a histologic variant of certain bone tumors.
Full Definition
Telangiectatic refers to a histologic pattern characterized by numerous dilated blood vessels and blood-filled spaces within tumor tissue, creating a honeycomb or cystic appearance. This pattern is most commonly seen in telangiectatic osteosarcoma, a rare variant that presents unique diagnostic and prognostic challenges. Telangiectatic tumors often appear predominantly lytic on imaging and may be confused with aneurysmal bone cysts or other vascular lesions. The abundant vascular spaces can make these tumors particularly hemorrhagic during biopsy or surgery, requiring special considerations for surgical planning and perioperative management.
Usage
Usage note: Derived from 'telangiectasia,' meaning dilation of small blood vessels.
In Context
- "The telangiectatic pattern of the osteosarcoma created significant bleeding during the biopsy procedure." — Pathology consultation
- "Imaging characteristics of the telangiectatic variant can mimic benign lesions such as aneurysmal bone cyst." — Radiology teaching file