B-ENT

Touch imprint cytological diagnosis of nodal Langerhans Cell Histiocytosis

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Department of Cytopathology

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Department of Ear-Nose-and Throat Surgery, General Hospital of Chania, Crete, Greece

B-ENT 2009; 5: 115-118
Read: 643 Downloads: 518 Published: 18 February 2020

Touch imprint cytological diagnosis of nodal Langerhans cell histiocytosis. Langerhans cell histiocytosis (LCH) is a rare neoplasm of the mononuclear phagocytic immunoregulatory system of unknown aetiology. Nodal involvement is uncommon. Cytological findings have seldom been described. A case study of LCH, arising in a submandibular node of a 42-year-old female, is reported. Fine needle aspiration smears were highly cellular and composed of a mixed cell population including eosinophils, lymphocytes, neutrophils, and macrophages. Imprint slides from the surgical specimen of the excised node exhibited Langerhans cells with nuclear grooves, leading to a diagnosis suggestive of LCH. Immunohistochemical staining of the node sections with CD1a and S-100 confirmed this diagnosis. In conclusion, cytology may favorably contribute to the diagnosis of LCH.

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