II. Definition
- Paraneoplastic rash comprised of concentric red bands
III. Associated conditions
- Associated with cancer in 80% of cases
- Most commonly associated with Lung Cancer
- Other associated conditions
IV. Symptoms
- Pruritic rash comprised of bands in concentric circles
- Bands move as much as 1 cm daily
V. Signs
- Characteristics
- Concentric waves of erythema (wood grain appearance)
- Erythema may be be flat (Macular) or slightly raised
- Fine white scale may be present
- Distribution
- Trunk
- Proximal arms and legs
- Spares face, hands and feet
VI. Differential Diagnosis
- See Gyrate Erythema
VII. Course
- Onset often precedes cancer diagnosis by 9 months
- Resolves within 1 week of cancer treatment