Synopsis
Recognise symptom and imaging patterns that may represent primary bone sarcoma, protect a threatened limb and preserve curative options through immediate specialist staging and biopsy planning.
- The common presenting symptom is progressive localised bone pain; night or rest pain, swelling, a palpable mass and symptoms worsening after an assumed sports injury are high-yield warnings.
- First-line investigation is urgent plain radiography of the entire symptomatic region in two planes, not repeated physiotherapy or a screening blood test.
- Aggressive imaging features include a wide transition zone, permeative destruction, cortical breach, interrupted periosteal reaction and a soft-tissue mass.
Key red flags
Progressive focal bone pain, especially at night or rest and persisting despite simple care, warrants radiography rather than repeated empirical musculoskeletal treatment.
Investigation priorities
Detect and describe matrix, margin, cortex, periosteal response, fracture and soft-tissue mineralisation at the symptomatic site.
Management branches
Bone pain is unexplained, progressive, nocturnal or associated with swelling or a mass.
- Re-examine the precise site and obtain urgent radiographs in two planes rather than extending empirical therapy.
- Review the images for margin, matrix, cortex, periosteum and soft tissue and compare all prior studies.
Key medicines
Paracetamol before definitive tumour treatmentGive 500 to 1,000 mg orally as required at intervals of at least four hours, not exceeding 4 g daily and using a lower maximum in low body weight, malnutrition or hepatic risk.
Morphine for severe pathological bone painIn an opioid-naive adult with severe pain, titrate small immediate-release oral doses under local acute-pain guidance, reducing the starting dose in frailty or renal impairment and prescribing antiemetic and laxative support.