Background:

Langerhans cell histiocytosis is a rare disease in the adult, predominates in the pediatric age and is more common in men than in women. The sites of greater affection are the long bones, followed by the bones of the skull. Patients usually have symptoms related to the site of affection, usually polyostotic lesions, monostotic lesions occur less frequently. The study of choice and treatment depends on the site affected, in the skull the main one is the magnetic resonance and the treatment is the surgical excision of the lesion.

Clinical Case:

A 29-year-old female patient who entered the hospital due to a non-painful, rapidly growing, progressive tumor on the frontal region of the skull. Physical examination revealed a rounded mass of approximately 5 cm in diameter in the left, non-painful, non-painful, left-frontoparietal region. Magnetic resonance imaging of the skull showed a lytic lesion in the frontal bone. It was surgically excised with clean edges; titanium plate was placed. Histopathological diagnosis was histiocytosis of Langerhans cells.

Conclusions:

It is a rare case, with a patient of an uncommon age of presentation, absence of metastasis by means of study protocol and due to the monostotic presentation improves the prognosis for this patient.

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