E83.2

Clinical Causes: Genetic mutations affecting zinc absorption or transport, commonly seen in inherited conditions like acrodermatitis enteropathica Malabsorption syndromes, such as celiac disease or Crohn's disease, impairing zinc uptake in the intestines Inadequate dietary intake of zinc due to poor nutrition or malnutrition Increased zinc loss through gastrointestinal losses, chronic diarrhea, or skin conditions Certain medications that interfere with zinc absorption, such as penicillamine or some diuretics Chronic illnesses and conditions causing increased metabolic demands, leading to zinc depletion

Key Symptoms: Skin lesions, especially around the mouth, anus, and extremities, including dermatitis and ulcers Alopecia or hair loss Impaired wound healing Diarrhea and gastrointestinal discomfort Growth retardation in children Loss of taste or decreased appetite Immunodeficiency, making individuals more susceptible to infections Behavioral changes or neurological symptoms in severe cases

Diagnosis Path: Diagnosis of zinc metabolism disorders involves a combination of clinical evaluation and laboratory tests. Blood tests measuring serum zinc levels are a primary diagnostic tool, but they may sometimes be normal in early stages. Additional assessments include plasma zinc measurements and evaluation of symptoms. Genetic testing is useful in hereditary conditions like acrodermatitis enteropathica. Healthcare providers may also perform skin biopsies or intestinal biopsies in complex cases to determine underlying causes.

Treatment Protocols: Managing disorders of zinc metabolism typically involves supplementing zinc orally or intravenously to restore adequate levels. Dietary modifications emphasizing zinc-rich foods, such as meat, shellfish, nuts, and seeds, are also recommended. In hereditary cases like acrodermatitis enteropathica, lifelong zinc supplementation is usually necessary. Addressing underlying causes, such as treating malabsorption syndromes, is crucial for long-term management. Regular monitoring of zinc levels and symptoms helps optimize therapy and prevent deficiencies.