amianthus

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amianthus

[‚a·mē′an·thəs]
(mineralogy)
A fine, silky variety of asbestos, such as chrysotile.
References in periodicals archive ?
A striking feature was the presence of satellite areas of homogeneous and eosinophilic deposits identical to those previously described as "amianthoid fibers" (Figure 4).
It is a benign mesenchymal neoplasm characterized by intranodal proliferation of spindle cells with smooth muscle differentiation, often with the presence of amianthoid fibers [1, 2].
Weiss and colleagues (4) first proposed the name palisaded myofibroblastoma, although the alternate names intranodal hemorrhagic spindle-cell tumor with amianthoid fibers and solitary spindle cell tumor with myoid differentiation of the lymph node were initially used as well by Suster and Rosai (5) and Lee et al, (6) respectively.
Fourth, collagenous bundles of so-called amianthoid fibers are distributed throughout the lesion, and have a darker eosinophilic center surrounded by a paler eosinophilic, stellate-shaped periphery (Figure 4, A).