Neck mass
Cervical triangleMed line neck swelling
a-solid1-submandibular LN enlargement
2-nodule in the isthmus of thyroid gland
b-cystic lesions
1-dermoid cyst
2-thyroglossal cyst
3-cold abscess
4-subhyoid bursitis
5- laryngocele
6-cystadenoma of the thyroid isthmus
Swelling in digastric triangle
1-LN enlargement insubmandibular
2-submandibular
salivary gland
enlargement
How we differentiate
both?
Swelling in carotid triangle
a-solid1-upper deep cervical
LN enlargement
2-lat thyroid lobe
enlargement
2-carotid body tumor
b-cystic lesion
1-cold abscess
2-branchial cyst
3-aneurysm of the carotid
Mass of posterior triangle
a-solid1-LN enlargement
2-neurofibroma from brachial
plexus
3-cervical rib
b-cystic lesion
1-cystic hygroma
2-pharyngeal pouch
3-cold abscess
Dermoid cyst
How it originWhat is it’s histology
Type of Dermoid
DD(ectopic thyroid, thyroglossal cyst , LN)
Thyroglossal cyst
Common sites(beneath the foramen cecum , floor of the mouth, above hyoid, beneath the hyoid on thyroid cartilage, at the level of cricoid cartilage
Definition
Clinical features and complications
Recu infections
Abscess and fistula
Papillary carcinoma
Treatment
Thyroglossal fistula
Structures move up with deglutition
1-thyroid mass2-subhyoid bursitis
3-pretracheal and prelaryngeal LN
4-thyroglossal cyst
Branchial cyst
OriginClinical features
1-age=20-25 y
2-swelling
3-cyst lining by squamous
epithelium so contain cheesy,
toothpaste –like material
4-sternomastoid contraction test
5-aspiration of cyst showed cholesterol crystal
6-LNexamination
Cysts which are positive for cholesterol crystals are
1-cystic hygroma2-thyroglossal cyst
3-hydrocel
4-dental and dentigerous cyst
DD
1-cold abscess
2-cervical Dermoid cyst
3-carotid body tumor
4-submandibular salivary gland swelling
5-Solitary LN enlargement
Cystic hygroma
DefinitionCollection of lymphatic sacs which contain clear colorless lymph
Origin
Congenital and consist of a cluster of lymph channels that failed to connected into the normal lymphatic pathway
Sits
1-post triangle
2-axilla
3-groin
4-mediastinum 5-tongue and buccal mucosa
Cold abscess
Causes
1-TB
2-actinomycosis
3-leprosy
Why it is called cold abscess
Pathology
Stage of inflammation1-lymphadenitis
2-periadenitis
3-cold abscess
Carotid body tumor(chomodectoma, potato tumor)
1-Originate at carotid body at bifurcation of carotid2-age 40-70 ys
3-slow growing take ys
4-occasionally press on the carotid sinus produces attack of faintness
DD
1-LN
2-sternomastoid tumor
3-branchial cyst
4-aneurysm of carotid
Sternomastoid tumor
1-3-4wks of childhood
2-hard smooth non-tender
mass adherent to muscle
3-Head point toward the
same affected muscle
and chin to opposite side
(torticollis)
4-Delay in correction may produce facial deformity