Primary diaphragmatic schwannoma with a typical target appearance: correlation of CT and MR imagings and histologic findings.

Abstract:

:A rare case of benign diaphragmatic schwannoma in a 38-year-old female is reported. Precontrast computed tomography (CT) showed an encapsulated well-defined round homogeneous tumor with central calcification, measuring approximately 5 cm in diameter, arising from the left diaphragm. Contrast-enhanced CT and gadolinium-enhanced T1-weighted magnetic resonance (MR) imaging showed focal enhancement in the central portion of the tumor. The tumor showed a typical target appearance of increased peripheral signal intensity and decreased central signal intensity on unenhanced T2-weighted images. Pathological examination of resected specimens of the tumor showed two zonal histological components: a hypercellular portion of spindle cells with nuclear palisading (Antoni A tissue) and a hypocellular portion of cells with cystic degeneration, together with focal calcification and hemangeomatous vascular changes (Antoni B tissue). We consider the radiological characteristics of diaphragmatic schwannoma on CT and MR imagings to represent the geographic difference between the histologic zones of the tumor.

journal_name

J Gastroenterol

authors

Koyama S,Araki M,Suzuki K,Fukutomi H,Maruyama T,Mun Y,Otsuka M,Fukao K

doi

10.1007/BF02389529

subject

Has Abstract

pub_date

1996-04-01 00:00:00

pages

268-72

issue

2

eissn

0944-1174

issn

1435-5922

journal_volume

31

pub_type

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