Korean Journal of Radiology  2015;16(4):947-950

doi:10.3348/kjr.2015.16.4.947

Sclerosing Pneumocytoma with a Wax-and-Wane Pattern of Growth: A Case Report on Computed Tomography and Magnetic Resonance Imaging Findings and a Literature Review.

Yong Pyo KIM 1 ; Sungsoo LEE ; Heae Surng PARK ; Chul Hwan PARK ; Tae Hoon KIM

Affiliations

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Keywords

Pulmonary sclerosing hemangioma; Multidetector computed tomography; Magnetic resonance imaging

Country

Republic of Korea

Language

English

Abstract

Sclerosing pneumocytoma (SP) of the lung is a rare benign neoplasm. Here, we describe an unusual presentation of SP with a wax-and-wane pattern of growth in a 47-year-old woman. Tumor diameter decreased over a 3-year follow-up period and then increased on serial follow-up computed tomography scans. The mass showed high signal intensity on both T1- and T2-weighted chest magnetic resonance imaging (MRI) and early enhancement with a plateau on dynamic MRI. We speculate that intratumoral bleeding and resorption processes accounted for the changes in tumor size.