1. Differential diagnosis of neck lump
classification
inflammation：acute, chronic；specific,
nonspecific
trauma：hematoma、false aneurysm
neoplasm：
benign or malignancy：more in benign
malignant：primary, metastasis；
deformity：angioma、cyst

2. Differential diagnosis of neck lump
General law
Duration：
7d inflammation，7M neoplasm，7y deformity
propery：
80%malignant in neoplasm
80% metastasis in malignancy
80% head and neck source in metastasis
site： metastasis in left supraclavicularis
from left chest or abdomen, in right
from right chest

3. Differential diagnosis of neck lump
Common tumor
middle：thyroid tumor, thyroglossal cyst
sternocleidomastoid muscle region： metastasis, neural tumor, branchial cyst, adenitis, carotid body tumor
Submaxillary triangle：neoplasm of submaxillary gland, adenitis
Postmaxillary region：neoplasm、neural tumor
Posterior region of neck ：adenitis, metastasis

4. Differential diagnosis of neck lump
Assistant examination
B ultrasound CT
MRI
DSA
puncture
Pathological examination：cell、tissue

5. Differential diagnosis of neck lump
inflammation：short duration，local pain, haphalagesia，change in size，antiinfection operative
Benign tumor：grow slowly, no pain, mestexture，smooth face
Primary malignance：progressive growth, short duration, rough face, hard texture, poor activity

6. Differential diagnosis of neck lump
metastasis：most in sternocleidomastoid muscle region，progressive growth，poor activity。Symptoms of primary lesion
Deformity: long duration，slowly growth， cyst feeling evident ，can get liquids from the lump

7. treatment of neck lump inflammation：anti-infection
Benign tumor： surgery
Primary malignancy：chemotherapy or radiotherapy， surgery
metastasis：radiotherapy, neck dissection
deformity：surgery
trauma：surgery

8. Deformity of neck
thyroglossal cyst or fistula: thyroglossal dust irregression during embryo
Classification of fistula：
complete—outer fistulous inlet、inner fistulous inlet
uncomplete—outer fistulous inlet
Middle line of neck
diagnosis： cyst or fistula in the middle of neck,Ｂultrasonic, CT, isotope examination
treatment：surgery

9. thyroglossal cyst or fistula

10. thyroglossal cyst or fistula

11. thyroglossal cyst or fistula

12. angioma

13. angioma

14. Branchial fissure fistula or cyst
Outer inlet
Inner inlet
the first
sternocleidomastoid muscle region
Ear cannel
The second
Tonsil pouch
The third
Priform fossa

15. lymphangioma

16. lymphangioma

17. lymphangioma

18. Malignancy in neck metastasis Primary lesion NPC（６０％－８０％）
Tonsil malignancy
Hypopharyngeal cancer
Laryngeal cancer
Thyroid cancer
Malignancy of sinus
Malignancy of mouth

19. Thank You