What is the plan of care for a 51-year-old female patient with a lump on the left side of her neck under her jaw?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: November 13, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

Plan of Care for a 51-Year-Old Female with a Submandibular Neck Mass

The first step is to perform a focused history and physical examination to determine if this patient is at increased risk for malignancy, which will dictate whether immediate imaging and specialist referral are needed versus observation with close follow-up. 1

Initial Risk Stratification

Assess for high-risk features that mandate urgent workup:

History-Based Red Flags

  • Mass present ≥2 weeks without significant fluctuation or uncertain duration 1, 2
  • No history of recent infection 1
  • Age >40 years (this patient is 51) 2
  • Tobacco and/or alcohol use history 1, 2
  • Prior head and neck cancer 1

Physical Examination Red Flags

  • Size >1.5 cm 1, 2
  • Firm consistency 1, 2
  • Fixed to adjacent tissues 1, 2
  • Ulceration of overlying skin 1
  • Nontender mass (more suspicious than tender) 1, 2

Associated Symptoms Requiring Urgent Evaluation

  • Difficulty or pain with swallowing 1
  • Voice change or hoarseness 1
  • Ear pain or hearing loss on the same side 1
  • Unexplained weight loss 1
  • Persistent sore throat 1
  • Mouth sores or tooth pain 1

Management Algorithm Based on Risk Assessment

If Patient is HIGH RISK (≥1 red flag present):

Order contrast-enhanced CT or MRI of the neck immediately (this is a strong recommendation) 1

Perform or refer for targeted physical examination including:

  • Visualization of the larynx, base of tongue, and pharynx using flexible laryngoscopy or mirror laryngoscopy 1
  • Examination of oral cavity with dentures removed, palpating floor of mouth 1
  • Oropharynx examination with tongue depressor (without tongue protrusion to avoid obscuring view) 1
  • Palpation of neck, thyroid, and the mass itself 1
  • Examination of ears, tympanic membranes for referred pain 1

Educate the patient about increased malignancy risk and explain recommended diagnostic tests 1

Perform fine-needle aspiration (FNA) instead of open biopsy when diagnosis remains uncertain 1

Refer to head and neck specialist within days, not weeks 2

Critical Pitfalls to Avoid:

  • Do NOT prescribe empiric antibiotics without clear signs of bacterial infection (fever >101°F, erythema, warmth, fluctuance), as this delays cancer diagnosis 1, 2
  • Do NOT perform open biopsy before imaging and specialist evaluation, as this can seed tumor cells and worsen outcomes 2
  • Do NOT assume cystic masses are benign - in patients >40 years, up to 80% of cystic neck masses are malignant 2

If Patient is LOW RISK (no red flags):

Provide patient education about warning signs requiring re-evaluation:

  • Mass enlargement 1
  • Mass persists beyond 2-3 weeks 1
  • Mass resolves then recurs 1
  • Development of any symptoms listed above 1

Document a specific follow-up plan (phone, electronic message, or office visit) 1

Instruct patient to check mass size weekly using fingertips - infectious masses should resolve completely or return to <1.5 cm within 2-3 weeks 1

If antibiotics are prescribed for presumed infection, inform patient of expected response timeline and need for follow-up if mass persists 1

Special Considerations for This 51-Year-Old Patient

Given this patient's age (>40 years), she automatically meets one high-risk criterion 2. The submandibular location (under the jaw) could represent a lymph node, salivary gland pathology, or other process. Without additional clinical information, the safest approach is to treat this as high-risk and proceed with imaging and specialist evaluation 1, 2.

Timeline expectations: Biopsy results should be available within 1 week, and patients should contact their provider if no results after 1 week 2. High-risk patients require specialist referral within days 2.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

Evaluation of a Lump on the Bottom Lateral Side of the Neck

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.