Evaluation of Cervical Lymphadenopathy

Initial Assessment

A duration of lymphadenopathy of ≥2 weeks is concerning for malignancy, according to the American Academy of Otolaryngology-Head and Neck Surgery 1
Localized symptoms such as pain, tenderness, and recent upper respiratory infection are relevant in the history of a patient with cervical lymphadenopathy, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 2
Recent infections, dental problems, trauma, or insect bites should be considered in the patient's history, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 2
Travel history and animal exposures are important to note in the patient's history, according to the American Academy of Otolaryngology-Head and Neck Surgery 2
Characteristics of lymph nodes, such as size >1.5 cm, firm consistency, fixed/immobile nodes, and ulceration of overlying skin, are suspicious features, as indicated by the American Academy of Otolaryngology-Head and Neck Surgery 1
A complete head and neck examination, including oropharyngeal inspection for signs of infection or masses, is necessary, as suggested by the British Journal of Cancer 3
Skin examination for rashes, lesions is an important part of the physical examination, according to the Clinical Infectious Diseases journal 4

A complete blood count with differential is a recommended laboratory study, as suggested by the Annals of Oncology 5
Inflammatory markers, such as ESR and CRP, should be considered, according to the Circulation journal 6
HIV testing is recommended if risk factors are present, as indicated by the Clinical Infectious Diseases journal 7
Ultrasound is a useful imaging modality for evaluating cervical lymphadenopathy, and can assess size, morphology, vascularity, and presence of necrosis, as suggested by the Clinical Infectious Diseases journal 4
A hypoechoic core on ultrasound suggests bacterial infection, according to the Circulation journal 6
CT or MRI may be indicated if deep neck involvement is suspected, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1

If infectious etiology is suspected, a single course of broad-spectrum antibiotics may be considered, and the patient should be re-evaluated within 2 weeks, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 2
If lymphadenopathy persists >2 weeks without signs of infection, ultrasound imaging should be performed, and biopsy should be considered if suspicious features are present, according to the American Academy of Otolaryngology-Head and Neck Surgery 1
Indications for biopsy include persistence beyond 4-6 weeks without diagnosis, size >2 cm without improvement, and presence of suspicious features, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1 and the Clinical Infectious Diseases journal 7

Infectious causes, such as viral, bacterial, and mycobacterial infections, should be considered, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 2
Malignant causes, such as lymphoma and metastatic disease, should be considered, especially if supraclavicular nodes are involved, according to the Annals of Oncology 8
Other causes, such as autoimmune disorders and Kawasaki disease, should be considered, especially if accompanied by fever and other characteristic findings, as suggested by the Circulation journal 6

Persistent cervical lymphadenopathy (>2 months) in a 14-year-old should never be dismissed without proper evaluation, as emphasized by the American Academy of Otolaryngology-Head and Neck Surgery 1
Empiric antibiotics should not be given without evidence of infection, as they may delay diagnosis of malignancy, according to the American Academy of Otolaryngology-Head and Neck Surgery 2
Follow-up is essential until complete resolution or definitive diagnosis, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 2

The American College of Physicians recommends assessing travel history, as areas with endemic fungi or leishmaniasis can increase the risk of lymphadenopathy 9
The National Comprehensive Cancer Network suggests that HIV status and risk factors must be assessed, as HIV-positive patients have an increased risk of opportunistic infections, Kaposi sarcoma, and lymphoma 10
The National Comprehensive Cancer Network also recommends assessing immunosuppression from medications, transplantation, or diabetes, as it increases the risk for atypical organisms 11
The American Society of Clinical Oncology states that tobacco and alcohol use increase the risk of head and neck malignancies 12

The Journal of Clinical Oncology recommends assessing immunosuppression from medications, as it increases the risk for atypical organisms 13
The American Society of Clinical Oncology suggests that edema may indicate lymphatic obstruction 14

The National Comprehensive Cancer Network recommends a complete head and neck examination, including oropharyngeal inspection, for masses, tonsillar asymmetry, or mucosal lesions 11