An adolescent presented with low-grade fever and difficulty in climbing stairs.
🔬 Historical Context:
Heinrich Adolf Gottron, a German dermatologist (1890-1974) described this sign in 1931.
It is considered pathognomonic of Juvenile Dermatomyositis.
💡 Gottron's Papules:
Small purplish, red flat papules on the dorsum of the metacarpophalangeal, interphalangeal, elbow, or even knee joints.
A punch biopsy can help to differentiate from other papulosquamous lesions but is seldom needed. Rarely these lesions are seen on the palm of the hand when they are called inverse Gottron’s papules.
🔍 Differential Diagnosis:
Knuckle pads in teenagers, lichen planus and psoriasis should be included in the differential diagnosis.
🌐 Beyond Dermatology:
Gottron is also credited with describing mandibuloacral dysplasia a very rare syndrome which belongs to the progeria group of disorders characterized by lipoatrophy, micrognathia, and a senile look.
By Dr Raju Khubchandani, India
Did you like our post ? Register to our newsletter and follow-us on our social media to get more from the JIR Academy.