Inflammatory myofibroblastic tumor (Inflammatory pseudotumor): DNA flow cytometric analysis of nine pediatric cases

Inflammatory myofibroblastic tumor or inflammatory pseudotumor is an uncommon lesion reported in various organs and believed to be a non‐neoplastic reactive inflammatory condition. The concept of benign lesion has been recently challenged from both clinical demonstration of recurrence and cytogenetic evidence of acquired clonal chromosomal abnormality. Because DNA aneuploidy can be a useful marker for neoplasia, we analyzed nuclear DNA content of these lesions using flow cytometry.