head and neck paragangiloma case report · paragangliomas of the head and neck are rare tumours,...

HEAD AND NECK PARAGANGILOMA _ CASE REPORT

BS NGUYỄN HỮU BẢO

Paragangliomas of the head and neck are rare

tumours, representing <0.5-0,6% of all head and

neck tumours.

Head and neck paragangliomas ( glomus

tumors or chemodectoma) are highly vascular

lesions originating from paraganglionic tissue

Overall there is a 3:1 female predominance

40yrs – 60, approximately 25% are multicentric

Radiographic features

CT

enhancing mass

useful when bone erosion occurs

MRI

T1: salt and pepper

T1C+ (Gd): demonstrate rapid wash-in and wash-

out

Angiography

demonstrate an intense tumour blush

Treatment and prognosis

Treatment is usually by excision

Preoperative endovascular embolisation

Radiotherapy may be used for palliation of unresectable lesions.

Malignant transformation : 16-19% of glomus vagale tumours, in

6% of carotid body tumours, and in 2-4% of glomus tympanicum

tumours.

CBP = carotid body

paraganglion,

JTP = jugulotympanic

paraganglia,

VP = vagal

paraganglia.

CAROTID BODY

PARAGANGLIOMAS

VAGAL PARAGANGLIOMAS

GLOMUS TYMPANIC PARAGANGLIOMAS

GLOMUS JUGULARE

PARAGANGLIOMAS

FEMALE, 74YRS

TÂY NINH

TINNITUS

FACIAL PARALYSIS

JUGULARE AND VAGAL PARAGANGLIOMAS ??