• Introduction• The evolving definition of the myofibroblast: promoting an understanding of
biology and pathology•‐From early ultrastructural criteria to a comprehensive definition• …

Tumours and tumour-like lesions of myofibroblasts may present diagnostic difficulty because
of their rarity and because of uncertainties in identifying the myofibroblast. The objectives of …

Some interpretational problems associated with the myo broblast, which affect how this cell
is identi ed, are discussed. Questions addressed include distinguishing between``externalīī …

We describe a reproducible method for growing small intestinal epithelium (derived from the
suckling rat intestine) in short-term (primary) cultures. Optimal culture conditions were …

The aim of this review was to document and discuss diagnostic problems associated with
divergent differentiation ('metaplastic change') in malignant melanomas, defined as the …

The spectrum of ultrastructural appearances assumed by collagen in normal and
pathological tissues is illustrated using techniques of thin section transmission electron …

Aim: To document the clinical, histological, immunohistochemical and ultrastructural features
of three malignant melanomas showing neuroendocrine differentiation. Methods and results …

Electron microscopy in the diagnosis and academic study of myofibroblastic lesions is
discussed. Myofibroblasts from granulation tissue and tumor stroma are regarded as the …

This brief review details the structure, nature, and distribution of the fibronexus, and
discusses its significance for myofibroblastic differentiation and tumor diagnosis. The …

A case of myofibrosarcoma of the breast is described. A 55-year-old woman presented with
a small mammary nodule. A large recurrent lesion appeared a month later, and the patient …