5th June 2025

A 14-year-old girl presents with a heliotrope rash, as well as Gottron’s papules on the MCP and PIP joints of her hand and periungal erythema.

A 14-year-old girl presents with a heliotrope rash, as well as Gottron’s papules on the MCP and PIP joints of her hand and periungal erythema. A month later, she develops some proximal weakness of her arms. Investigations show a very high creatinine kinase, as well as positive ANA. She is diagnosed with dermatomyositis.

Which myositis-associated antibody is often seen in juvenile-onset dermatomyositis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.