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. 2016 Aug 27;32(11):2085–2096. doi: 10.1007/s00381-016-3215-y

Fig. 5.

Fig. 5

Characteristic histologic findings showing a cellular, spindle cell tumor with a prominent collagenous (desmoplastic, fibrous) stroma composed of bipolar and spindle-shaped cells having an eosinophilic cytoplasm and cells with long processes. The prominent, blue collagen component is shown by the Mallory trichrome stain.