True about subcutaneous nodule in Rheumatic fever-

Ref: R Alagappan - Manual of Practical Medicine 4th Edition.pg no:146 Subcutaneous Nodules Non-tender nodules are seen over bony prominences like elbows, shin, occiput, spine in 3-5% of patients and occur 3-6 weeks after onset of rheumatic fever. Patients who have subcutaneous nodules almost always have carditis.