MICA · FIRST-LINE LEARNING NOTES
Understand, prioritise and organise follow-up
Lymphadenopathy is a clinical finding. Its distribution, course and associated features guide investigation more reliably than size alone.
Describe distribution and context
Distinguish localised from multi-region lymphadenopathy. Document onset, progression, tenderness, consistency, mobility and skin changes; examine the drainage area, mouth, other nodal regions, liver and spleen. Ask about recent infection, tuberculosis exposure, travel, animals, medicines and HIV risk through a confidential, consent-based approach. Tenderness alone does not exclude a serious cause.
[1][2]Select targeted investigations
A full blood count with differential is informative with generalised nodes, pallor or bleeding signs. Choose inflammatory markers, serology and imaging according to clinical hypotheses rather than indiscriminate infectious panels. When tuberculosis is plausible, seek microbiological evidence from an appropriate specimen. A positive immunological test for TB infection alone does not establish active nodal tuberculosis.
[1][2]Map nodal regions and look for a local cause within their drainage area. Describe size, consistency, mobility, tenderness and evolution; check for splenomegaly and systemic symptoms. Size alone does not classify a lymph node. Multiple sites, unexplained progression or blood count abnormalities change concern and the tissue sampling strategy.
[1][3]Avoid delaying necessary tissue diagnosis
Unexplained progression, supraclavicular nodes, splenomegaly or fever with night sweats and weight loss warrant prompt specialist assessment. Suspected lymphoma requires a specimen suitable for assessing tissue architecture; fine-needle aspiration alone may be insufficient. Repeated empirical treatments may delay diagnosis. Respiratory compromise or compression requires emergency assessment.
[1][3]- Avoid repeated antibiotic courses without a plausible bacterial focus or documented reassessment.
- For suspected lymphoma, coordinate sampling that permits appropriate histological assessment with the specialist pathway.
- Observation requires a review date and escalation criteria; unexplained persistence should not be dismissed.
Make surveillance explicit
When a reactive cause appears likely and observation is chosen, record the affected regions and agree an appropriate review. Explain when to return: enlargement, new nodal regions, persistent fever, declining general health or compression symptoms. Unexplained persistence warrants reassessment; reassuring ultrasound does not replace clinical concordance and documented evolution.
[1][3]A learning situation
FICTIONAL CASE · SELF-REFLECTION WITHOUT A SCORE
A 44-year-old woman has progressive, painless cervical and axillary lymphadenopathy with night sweats. An old positive serology result is found in her record. She is respiratorily stable.
Can the nodes be attributed to the old positive serology?
Read the reasoning
No. Past infection does not establish the current cause. Multiple nodal regions and constitutional symptoms justify a blood count and prompt diagnostic referral. Select the node and sampling technique to allow, in particular, histological assessment for lymphoma without assuming the final diagnosis.
References and scope
- Suspected cancer: recognition and referral (NG12): actions by symptom and findings ↗
- WHO consolidated guidelines on tuberculosis: module 3: diagnosis ↗
- Non-Hodgkin’s lymphoma: diagnosis and management (NG52) ↗
Original educational synthesis for adult first-line practice. International references must be interpreted with the clinical setting and local care pathways. Independent human scientific review remains to be confirmed.