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We describe four lymph node based tumours in which numerous neoplastic cells and some mitotic figures were characterized by staining affinity for Lectin I of Ulex europaeus (UEA-I). The patients had no vascular or epithelial tumours and presented symptoms suggestive of a systemic lymphoproliferative
Neoplastic angioendotheliomatosis (NAE) is a rare entity characterized by multifocal, intravascular proliferation of large pleomorphic cells within small vessels of most organs, with a particular affinity for the central nervous system. Clinically, patients with NAE present with focal neurologic
We present a case of a congenital angiomatoid malignant fibrous histiocytoma. This rapidly growing lesion, which was located in the subcutis of the left upper arm, was excised at the age of 8 1/2 months. The patient, a girl, was well and free of disease 10 months after surgical removal of the tumor.
The sinusoids of 30 human hepatocellular carcinomas of various types were examined by electron microscopy and histochemically for binding to the Ulex europaeus lectin (UEA1). A population of sinusoidal macrophages was identified with an antibody to lysozyme (muramidase). The UEA1 binding was