Foci of amorphous/granulofilamentous matrix in the extracellular domain of tumours: a study of 34 cases. 1. Ultrastructural characterisation.


The distribution and the appearance of foci of extracellular amorphous/granulofilamentous material (FEAM) in 34 human tumours are described. FEAM were rounded to oval, or more elongated or irregular elements of discretely delineated dense material lying in the extracellular space of tumours. They varied in size and abundance, sometimes coalescing into more… (More)


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