Category IV: Neoplasm—Undetermined Malignant Potential
- 518 Downloads
Neoplasms of low malignant potential represent a group of rare tumors of diverse differentiation that behave mostly in a benign fashion but have unpredictable capacity to recur locally or at distant sites. The majority of these tumors can occur in other sites of the body but can present as incidentally discovered pulmonary masses mimicking pulmonary malignant tumors. Patients are often asymptomatic. Aspiration biopsy or small biopsies are necessary to rule out malignancy. Therefore it is important for cytopathologists and cytotechnologists to be familiar with the cytological features of these rare neoplasms and their diagnostic pitfalls.
KeywordsLow malignant potential—borderline Sclerosing pneumocytoma Epithelioid hemangioendothelioma Inflammatory myofibroblastic tumor Myoepithelial tumor Pulmonary meningioma Sugar tumor Solitary fibrous tumor Langhans cells histiocytosis
- 2.Fraire A, Cagle P, Irwin R, Mody D, Ernst A, Blackmom S, et al., editors. Atlas of neoplastic pulmonary disease: pathology, cytology, endoscopy and radiology. New York: Springer; 2010.Google Scholar
- 9.Moreira A, Saqi A, editors. Diagnosing non-small cell carcinoma in small biopsy and cytology. New York: Springer; 2015.Google Scholar
- 19.Travis W, Brambilla E, Burke A, Marx A, Nicholson A. WHO classification of tumours of the lung, pleura, thymus and heart. 4th ed. Lyon: International Agency for Research on Cancer; 2015.Google Scholar