Background: The aim of the current case report is to re-evaluate the key features and pitfalls of fine-needle aspiration cytology (FNAC) in the diagnosis of sclerosing pneumocytoma (previously named sclerosing hemangioma) and to establish the importance of FNAC in addressing a proper surgical strategy. Case: Herein we documented a case of a 70- year-old man with a lung nodule which showed a hypermetabolic uptake on positron emission tomography. He therefore underwent FNAC under computed tomography scan guidance with a 22-gauge needle. The cytopathological examination allowed a diagnosis of sclerosing pneumocytoma. A wedge surgical excision was performed and the histological examination confirmed the cytological diagnosis. Conclusion: FNAC is a fundamental tool for distinguishing sclerosing pneumocytoma from a malignant lung tumour and together with clinical, radiological and pathological multidisciplinary assessment is indispensable in planning appropriate surgical management. Cytopathologists should be aware of the pitfalls and key features of the cytopathological diagnosis of sclerosing pneumocytoma, which can significantly change the surgical approach to the patient and protect him from aggressive overtreatment.

Keywords:
Lung adenocarcinoma, Fine-needle aspiration cytology, Sclerosing pneumocytoma
© 2016 S. Karger AG, Basel
2016
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