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Dilation of apocrine glands. A forgotten but helpful histopathological clue to the diagnosis of axillary Fox-Fordyce disease.
Am J Dermatopathol
June 2009
Department of CIPAX-Medicina Diagnostica, Sao Jose dos Campos-SP, Brazil.
Fox-Fordyce disease is a condition with protean histopathological alterations whose pathogenesis remains a mystery. Although recent studies have addressed histological changes specific of this disease, including perifollicular xanthomatosis, no attention has been given to apocrine acini dilation as an adjunct histopathological finding to the diagnosis. Moreover, although previous efforts were done to demonstrate that perifollicular foamy histiocytes harbor apocrine secretion content, this concept has not been proved to date.
View Article and Find Full Text PDFThe first patients with xanthomatosis and cardiovascular disease were described in end of the 18th century. From 1925 to 1938, the Norwegian pathologist Francis Harbitz (1867-1950) published several reports on sudden death and xanthomatosis. Harbitz called attention to certain peculiarities of the xanthomatosis.
View Article and Find Full Text PDF[Inflammatory pseudotumor of the breast. Report of a case and review of the literature].
Pathologica
February 1995
Servizio di Anatomia Patologica, IRCCS-Ospedale Casa Sollievo della Sofferenza, S. Giovanni Rotondo (Foggia).
Inflammatory pseudotumor (IPT) truly represents an enigmatic entity. A tumor-like lesion known with many synonyms according to the various patronymic authors who named it on the basis of the different observed morphological appearances. Among these names plasma cell granuloma, plasma cell/histiocytoma complex, xanthomatous pseudotumor, xanthoma, fibrous xanthoma, histiocytoma, xanthogranuloma, inflammatory myofibroblastic tumor, inflammatory myofibrohistiocytic proliferation are just the most renown.
View Article and Find Full Text PDFCritical Evaluation of 200 tumours of meninges, brain and spinal cord showed that to be familiar with the ultrastructural features of meningioma and its variants was instrumental in differential diagnosis of other primary or secondary meningeal tumours (neurinoma, paraganglioma, xanthomatous and histiocytic tumours). A limited value of electron microscopy was found in astrocytoma and glioblastoma in contrast to its importance in low-differentiated ependymoma and oligodendroglioma. The examination had histogenetical and taxonomic values in medulloblastoma (CNS neuroblastoma and mixed tumours with a component featuring primitive neuroectodermal or neuroblastic differentiation).
View Article and Find Full Text PDFThe majority of staghorn calculi (branched calculi)--25 per cent bilateral--is mainly composed of calcium phosphates, in about 2/3 with varying fractions of Struvite. Pure Struvite stones are rare. Large fractions of Struvite form a soft concrement.
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