Dorsal (Posterior) Wall ultrasound

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Dorsal (Posterior) Wall — Ultrasound

Patient prep & positioning (prone, sitting) Probe choice, presets & labeling

Skin → subcutis → fascia → muscle → bone Spinous processes, paraspinal muscles, thoracolumbar fascia

Longitudinal, transverse, oblique paraspinal Dynamic maneuvers (Valsalva, muscle activation)

Strain, partial/complete tear, myositis Enthesopathy & aponeurotic injuries

Fascial thickening, edema, fluid planes Subcutaneous edema, cellulitis patterns

Identifying nerves, anisotropy & tracking Entrapment, neuritis & post-op neuroma

Perforators, hyperemia in infection Hematoma evolution & flow artifacts

Lipoma vs liposarcoma clues Sarcoma red flags & referral

Phlegmon vs drainable abscess Sinus/tract mapping & guidance

Stages, septations & organization Closed degloving (MLL): features & follow-up

Grynfeltt–Lesshaft (superior lumbar triangle) Petit hernia (inferior lumbar triangle)

Mesh/flap integrity, seroma, collections Scar vs recurrence patterns

Wood, glass, metal — echogenic patterns Localization & removal guidance

Abscess aspiration & drain placement Trigger point & nerve injections (general principles)

Congenital masses & sinuses Cutaneous stigmata over spine — when to refer

Lesion dimensions & volume estimates Minimum images & labeling checklist

Anisotropy, shadowing & reverberation Practical tips for difficult body habitus

Structured templates & suggested phrases Urgent findings & escalation pathways

Guidelines & consensus statements Further reading & review articles

Dorsal (Posterior) Wall Ultrasound — Bilingual MCQ Panel

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