CM- The Neck Mass Flashcards
What are the bones/cartilage landmarks of the neck?
- mastoid tip- behind the ear at the top of SCM
- madible angle
- hyoid bone- difficult in obese/females
- thryroid cartilage
- cricoid cartilage- more prominent in females
- trachea
- C1 vertebral transverse process
What are the glandular landmarks of the neck?
- parotid- tail is anterior to SCM, posterior to mandible
- submandibular
- Thyroid- anterior
What are the vessel landmarks in the neck?
- Carotid: the bulb (bifurcation) is located on the center of the SCM but really can fall anywhere from cricoid to the mandible
- External jugular vein- surface of SCM
The ________divides the neck into anterior and posterior triangles.
SCM
The anterior triangle contains what 3 subdivisions?
What nodal levels are associated with each?
- submental triangle - nodal Ia
- submaxillary/submandibular triangle- nodal Ib
- vascular triangle - nodal II, III, IV
What nodal levels are associated with:
- submental triangle
- submaxillary
- vascular triangle
- posterior
- 1a
- 1b
- II, III, IV
- V
In addition to the 5 lymph node levels, What are the other groups of lymph nodes?
- pre-auricle
- post-auricle
- occipital
- superficial to SCM along ex. jugular vein
- perifacial= along facial artery at mandible
- supraclavicular (Virchow’s node) = on the left
- paratracheal
When you feel a neck mass, what is the order for what you presume it to be in adult? Children?
Adults:
- tumor (carcinoma if NOT tender)
- infection
- developmental
Children
- infection (reactive lymph nodes to URI, otitis)
- developmental (branchial cleft cysts, thyroglossal duct cysts)
- tumor (sarcoma, lymphoma)
What is the most prominent neck feature on a male? female?
Male- thyroid notch, so locate and work inferior
Female - cricoid, so locate and work superior
What cancers are likely to be correlated to the following areas of the neck? I II III IV V VI
I- skin and oral II- oropharynx, parotid, UADT (upperaero-digestive tract) III- UADT IV- UADT, Delphian nodule, Thyroid V- nasopharynx VI- thyroid
What are the 4 major ways neck masses can be categorized? Give examples of each.
- Normal variant
- carotid artery - Congenital/developmental anomaly
- branchial cleft cyst
- thyroglossal duct cyst
- vascular
- lymphatic malformation - infection/inflammation
- reactive lymphadenopathy - Neoplastic
- primary= salivary gland, thyroid tumor, nerve sheath tumor
- metastatic= from head and neck, metastatic
Sex of the patient is only important in _____ neck masses.
Females are more likely to have _________.
Males are more prone to __________________.
ADULT
Females- thyroid
Males- squamous cell carcinoma
You are examining a female patient and notice a supraclavicular node on the left. What is this node called?
Where should you search for the primary legion?
It is Virchow’s node- on a female look for breast and ovarian cancer
You are examining a male patient and notice a supraclavicular node on the left. What is the node called?
Where should you search for primary legion?
Virchow’s node on a male you want to look for lung or prostate origins
When taking the past medical history, it is important to ask about time of onset of the mass.
If the mass come on rapidly, it is more likely an ___________ whereas if it comes on slowly it is more likely a ____________.
If it remains stable for a long period of time it is probably________________________.
If it fluctuates it is most likely ______________.
Rapid = infection
Insidious = neoplasm
Stable for long period of time = benign, congenital, developmental
Fluctuating = branchial or salivary cysts
Tobacco and alcohol are carcinogens for ___________________ of the larynx and lung.
UV radiation is a carcinogen for _______.
HIV seropositivity is a risk factor for ________ and _______.
Tobacco/alcohol = squamous cell carcinoma UV = skin cancer HIV = parotid gland lymphoepithelial cysts and lymphoma
Where is the likely location of the mass for:
- epistaxis
- dysarthria
- trismus
- odynophagia
- stridor
- nasal cavity
- oral cavity
- oropharyngeal
- hypopharynx
- laryngeal and/or tracheal
A patient comes in claiming they have TMJ. You are suspcious of otalgia.
What are the possible locations of the neck mass?
NP
OP/OC
hypopharynx
Larynx
With referred ear pain
A patient comes in with full hearing loss. Where is the likely neck lesion?
NP obstructing Eustachian tube and causing severe otitis media
What symptoms are associated with a nose mass?
What are possible causes?
- epistaxis
- pain
- obstruction
Caused by NP, nose, sinus lesion
A patient comes in with dysphagia, odyngophagia, dysarthria, and trismus. Where is the mass?
What is the likely cause?
Mass in the OC/OP.
Caused by lesions in the OC/OP, OP, OC
A patient comes in with dysphagia and odynophagia. Where is the likely mass?
What are the causes?
Hypopharynx- lesion
A patient comes in with stridor, hoarseness, odynophagia, dysphagia. Where is the mass? What are causes?
Mass in the larynx caused by:
- lesion on vocal cord
- lesion on trachea
- lesion spreading to hypopharynx or espophagus
A patient comes in wheezing and with stridor. Where is their neck mass?
What are causes?
Trachea- obstructing lesion
A patient comes to see you and they say they have painful submandibular gland swelling that is intermittent and exacerbated by eating. What is the most likely cause?
submandibular duct obstruction
What is the mass most likely to be if it is :
- midline
- anterolateral
- supraclavicular
- I
- II, III, IV
- V
- thyroglossal duct cyst
- branchial cleft cyst
- neoplasm
- glands
- lymph nodes
- hemangioma, venolymphatic, lymphangioma, malformation
Metastatic carcinoma of the UADT can be involved with bacterial superinfection, so the nodes along II, III, IV will be tender.
How do you differentiate a bacterial infection from a bacterial infection WITH metastatic carcinoma?
Metastatic deposit will persist after the infection is treated.
If the entire mass resolves with antbiotics, it is most likely JUST infection
A person has a mass that moves with deglutition (up and down when swallowing). What type of mass is this almost definitely?
Thyroid mass
A person comes in with a mass that only moves medial lateral but NOT cranial/caudal. What is the mass most likely to be?
A mass fixed to the carotid
A __________should be obtained if suspicious of infection or neoplasm.
_____ and ______ tests should be ordered if the mass is in VI area or if you are suspicious for lesion in these glands.
CBC:
high WBC with lots of PMNs suggests infection
low RBC suggest neoplasm
Thyroid and parathyroid function tests can be order if these glands are thought to be involved
When would you use a plain X ray for evaluating neck masses?
You wouldnt. They are of no value
When would you do CXR for neck masses?
rule out pulmonary lesions (TB or neoplastic)
When is it reasonable to use ultrasound for neck masses?
- When cystic masses are suspected
- to locate carotid and other structures
- thyroid masses
When is nuclear medicine (PET scans) used in evaluating neck masses?
Occasionally with thyroid masses: Cold nodules (decreased I uptake) are cancerous Hot nodules are hyperfunctioning and are not cancerous
What is the most helpful study to evaluate neck masses and other soft tissue anatomy?
What are the 2 major drawbacks?
CT
- it doesn’t diagnose WHAT it is, just where and what is stuck to it
- requires good kidney function bc uses IV contrast
What are the 2 reasons why thyroid masses are evaluated with ultrasonography and NOT usually CT?
- sonogram allows FNA to occur at the same time
- thyroid cancers are often treated with thyroidectomy AND radioactive iodine. CT with contrast saturates the thyroid/cancer with iodine, so they will not absorb as much later when iodine is being used as radioactive killer of the tumor
When would you use angiogram for neck masses?
- vascular tumors (aneurysm, hemangioma)
- paragangliomas
- determine if a tumor surrounding the internal carotid can be done
What is the rule of thumb for obtaining a histologic diagnosis (biopsy) for a neck mass?
- NEVER perform a biopsy until all the other diagnostic modalities have been completed
- have an experienced head and neck surgeon perform the exam prior to biopsy
Why must a head and neck surgeon do the biopsy of the neck?
- excessive scarring can disrupt lymphatic drainage
- future operations can be compromised otherwise
- risk of seeding of the tumor is great