P83.0

Clinical Causes: Severe systemic infections in neonates, such as bacterial sepsis Extreme prematurity and low birth weight Immune system deficiencies in the newborn Rapid temperature changes or thermal stress Underlying metabolic or genetic disorders Prolonged hospitalization and invasive procedures Severe dehydration and nutritional deficiencies

Key Symptoms: Diffuse hardening and induration of the skin, especially on the trunk and limbs Skin that appears waxy, pale, or yellowish Reduced skin elasticity, making it feel firm or leathery to the touch Potential involvement of subcutaneous tissues causing swelling General signs of neonatal illness, such as lethargy, poor feeding, or respiratory distress Possible development of secondary infections due to skin breach or compromised barriers

Diagnosis Path: Diagnosis primarily relies on clinical examination, observing characteristic skin changes in a newborn. Laboratory and imaging tests may be performed to identify underlying causes or associated infections. Skin biopsy, although rarely needed, can reveal specific histopathological features such as thickening of the subcutaneous tissue and reduced fat cell size. Blood tests and cultures are often conducted to assess for infection and systemic involvement. The disease is distinguished from other skin conditions by its diffuse hardening and the age at presentation.

Treatment Protocols: Addressing infection through appropriate antibiotics or antiviral medications Ensuring adequate thermal regulation and preventing further temperature fluctuations Providing nutritional support and maintaining hydration Monitoring and supporting vital functions, such as breathing and cardiovascular stability Treating any associated metabolic disturbances In some cases, managing immune deficiencies and complications Close monitoring for secondary infections or breakdown of skin integrity