Langerhans cell histiocytosis
- It is classified into three clinical forms:
- Solitary eosinophilic granuloma: local (usually in older children and young adults)
- Hand-Schuller-Christian disease: chronic, widespread
- Leterrer-Siwe disease: malignant, acute, widespread (children under 3 years old).
- The borders of the lesion are usually well defined but not corticated (punched out). Most often the lesions are multiple with irregular borders and cortical infiltration is observed.
- Adjacent teeth become loose (“floating”)
- No expansion of surrounding bone.