Issue N# 1 - 2005
OTOLOGY
Mastoid eosinophilic granuloma: A case report
Authors : A. Filali Adib, A. Lazrak, M. Boulaich, N. Nazih, A. Oujilal, M. Kzadri (Rabat)
Ref. : Rev Laryngol Otol Rhinol. 2005;126,1:37-41.
Article published in french 
Downloadable PDF document french
Summary :
Objectives: Langerhans cell histiocytosis is a proliferating cell disease that may take various forms characterised by bone, skin lymph nodes and visceral lesions. Eosinophilic granuloma is a localised form of histiocytosis X, or Langerhans’cells histiocytosis, a benign form with unknown aetiology. At the head and neck level, it is usually located on the temporal, and usually occur in association with multifocal disease; however, isolated lesions may occur in the mastoid bone alone. Methods: The author’s present a case of a patient with unifocal eosinophilic granuloma limited to the mastoid treated in ENT and radiotherapy departments. Results: CT scan demontrated an osteolytic lesion of the mastoid. The biopsy and immunohistochemical study confirmed the diagnosis. A surgery followed by a radiotherapy (20 Gy) have stabilised the situation. There is no recurrency after one year. Conclusion: Unifocal eosinophilic granuloma of the temporal bone is a benign lesion of langerhans’cell histiocytosis. Its diagnosis is difficult when the disease remains isolated. Its treatment depend on its extension and its riks. The excellent prognosis does not dispense on regulary follow up.
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