198 Differential Diagnosis of Neck Masses

Question 1

Major categories of neck masses in children:

Answer 1

Congenital - Cysts

AcquIred - Infectious

Question 2

Branchial cleft cyst forerunner

Answer 2

2nd/3rd branchial

Question 3

Hemangioma involution period

Answer 3

18-24 mos

Question 4

Most common neck malignancy in children

Answer 4

Lymphoma

Question 5

Most common locations , malignant neck lesions

Answer 5

Posterior cervical or supraclavicular

Question 6

Any node that falls outside this cutoff size - outside the range of typical lymphoid hyperplasia

Answer 6

2 cm in diameter

Question 7

Branchial cleft cysts - common locations

Answer 7

First branchial - near angle of mandible
2nd - deep to anterior border of SCM
3rd - near upper pole of thyroid

Question 8

Modalities to differentiate TGDC from ectopic thyroid

Answer 8

Thyroid US

Radionuclide scanning

Question 9

Agents in treating macrocystic lesions

Answer 9

Alcohol
OK 432
doxycycline

Question 10

Most common location of laryngeal hemangioma

Answer 10

Subglottic larynx

Question 11

Medical therapy for hemangioma

Answer 11

Propranolol

Question 12

CT or MRI finding - teratoma - that may assist in diagnsosi

Answer 12

Instrinsic calcifications

Question 13

Dermoid cyst locations

Answer 13

Orbit
Nose
NP
Oral cav

Question 14

Usual location fo dermoid cyst

Answer 14

Midline, sumental

Question 15

Structure defining if laryngocele is internal or external

Answer 15

Thyroid cartiage
If within - internal
Extends beyond in ceohalad to protrude through thyrohyoid membrane - external

Question 16

Vascular mal:

Slow flow lesions:
Fast flow lesions:

Answer 16

Slow: capillary malformation, venous mal

Fast: arterial, AV mal

Question 17

Most common causative organisms of suppuration in neck

Answer 17

S. Aureus

GABS

Question 18

Mumps manifestations

Answer 18

Orchitis
Meningitis
Sensorineural HL

Question 19

Kawasaki criteria

Answer 19

CLAD, acute, non purulent, usually unilateral

Erythema, edema, desquamation of hands and feet

Polymorphous exanthem

Bilateral painless conjunctival infection

Erythema and infection of lips and oral cavity

Question 20

Sub acute stage, kawasaki, clinical sequelae in 15-20%

Answer 20

Coronary artery aneurysms

Question 21

NHL extralmphatic sites of involvement

Answer 21

Liver, lung, bone marrow

Question 22

Rhabdomyosarcoma types

Answer 22

Embryonal (Most common)
Alveolar
Pleomorphic

Question 23

Peak ages of rhabdomyosarcoma

Answer 23

2-5 years old

15-19 years old

Question 24

Syndrome associated with Neuroblastoma

Answer 24

Horner syndrome (ipsilateral)

Question 25

60% of malignant epithelial neoplasm histology

Answer 25

Mucoep

Acinic cell