Congenital epulis is a very rare benign soft-tissue tumor of uncertain histogenesis, which is also known as “gingival granular cell tumor of the newborn”. It occurs almost exclusively as a single tumor along the alveolar ridge of the maxilla in newborn females. Although congenital epulis is strikingly similar to the more common adult granular cell tumor histologically, in contrast to the latter...

Refractile eosinophilic granular cells, when present in abundance in a glioma, may trigger a diagnosis of the relatively familiar and inherently malignant 'granular cell astrocytoma'. The following two cases remind us that refractile eosinophilic granular cells are not unique to granular cell astrocytoma but can also dominate the histology of oligodendroglioma confirmed by 1p19q loss, and the i...

Granular cell tumors in the cerebral hemispheres are rare and of unknown origin. Two large aggressive cerebral neoplasms composed mainly of granular cells and also containing neoplastic astrocytes were studied histologically, ultrastructurally and immunohistochemically. In both instances, transitional forms between astrocytes and typical granular cells were demonstrated. In the second case whic...

Granular cell ameloblastoma is classified as a histological subtype of solid/multicystic ameloblastoma. Usual granular cell ameloblastoma is histologically characterized by granular changes of stellate-like cells located in the inner portion of the epithelial follicles. Here we report a case of another type of granular cell ameloblastoma, showing predominant anastomosing double-stranded trabecu...

Early life stress during fetal development has been hypothesized to predispose several neurological and psychiatric disorders in adulthood. The purpose of this study was to investigate the effect of maternal stress on the volume of granular cells, total number of dark neurons and also the distribution of glycol-conjugates and changes of terminal sugars in the dentate gyrus. Pregnant Sprague-Daw...

Granular cell ameloblastoma (GCA) is a well recognized variant of follicular ameloblastoma with extensive granular cell change. In contrast, plexiform granular cell odontogenic tumor (PGCOT) is a rare and recently described lesion characterized histologically by a monophasic plexiform pattern of granular cells. In this paper, two cases of an unusual granular cell odontogenic tumor exhibiting co...

The aim of the present study was to determine various types of hemocytes, total and differential hemocyte count and to show some indices of phagocytosis, including percent phagocytosis and phagocytic index in Indian white shrimp, Fenneropenaeus indicus in Iranian shrimp farms. The hemolymph was extracted from the shrimps and mixed with anticoagulant. It then stained and Yeast was added as forei...

Haemocytes play an essential role in defending invertebrates against pathogens and parasites that enter their haemocoel. A primary defense response is encapsulation; a process in which haemocytes attach to the foreign organism and kill it. Whether encapsulation requires cooperation between specific subpopulations of haemocytes is unknown. Using purified subpopulations of haemocytes and an in vi...

Ameloblastoma is an epithelial odontogenic tumour of the jaw and exhibits diverse microscopic patterns which occurs either singly or in combination with other patterns. Granular cells can occur in various odontogenic and non-odontogenic tumours. Granular cell ameloblastoma is a rare variant of ameloblastoma as making up 1 to 5% of all ameloblastomas that histopathologically has numerous large g...

317 degeneration to loss of Purkinje cells. In the Purkinje cell layer where neurons were lost, there were empty baskets. Degenerate Purkinje cells were accompanied by axonal torpedoes in the granular layer. The empty baskets indicate Purkinje cell loss normally de~eloped,~ while axonal torpedoes are a nonspecific sign of Purkinje cell degeneration and not a consequence of developmental f a i l...