Nasal chondromesenchymal hamartoma: correlation of typical MR, CT and pathological findings.

摘要

We read with great interest the case report on nasal chrondromesenchymal hamartoma (NCMH) by Johnson et al. 1. They presented the spectrum of CT findings of this rare, benign pathological entity that can be locally aggressive and mimic malignancy. We would like to highlight the MR appearance of NCMH, which correlates with known CT and pathological features, as well as findings seen with intraorbital and intracranial extension.The described CT findings include internal calcifications, bony remodeling, variable enhancement, cystic components, local extension into the orbit, paranasal sinuses and, rarely, intracranial compartment 1-5 (Fig. 1). The imaging spectrum reflects the histology of NCMH, which is composed of different mesenchymal elements, the most prominent being sheets/fascicles of spindled cells in a fibrous or myxoid background.