Crystalloids of reinke

Author: kpow

August undefined, 2024

WebFeb 1, 2011 · Within the human testis, Reinke’s crystals are found in Leydig cells but their nature and function are poorly understood. The aim of our study was to investigate the properties of Reinke’s crystals in man with the normal morphology of the testis (control group) and infertile patients diagnosed with cryptorchidism. 20 biopsies from infertile … WebApr 1, 2004 · After careful search no crystalloids of Reinke were found. The neoplastic cells displayed no nuclear pleomorphism, and mitoses were not present. Calcification, interstitial lymphocyte infiltration ...

Reinke crystalloids definition of Reinke crystalloids by …

WebFeb 12, 2012 · Cytoplasmic rod-like crystalloids called Reinke crystals are characteristic of the Leydig cell tumor, but they are not positive in 60% of patients with LCT . In addition, Inhibin A could be a sensitive and a specific immunohistochemical marker for LCTs . In our patient, unilaterality, the lack of response to glucocorticoid therapy and ... WebMorphologically, their endocrine-like structure is characteristic, formed of large, polyhedral cells resembling luteal, adrenocortical and Leydig cells. They contain crystalloids of Reinke in their cytoplasm which have diagnostic significance. Patients with these tumours present with androgenic manifestations. bapesta reps dhgate

Cytologic identification of Reinke crystalloids in ovarian Leydig …

WebJun 4, 2024 · Reinke crystals were also observed in the nucleus, which suggests that their formation is dependent only on protein concentration. Reinke crystals appear to be hallmarks of normally differentiated, adult, Leydig, or Leydig-like cells in humans while some abnormal and nonhuman cells contain paracrystalline inclusions or crystalloids. WebJun 1, 2006 · To the Editor.—We read with interest the recent report by Hribar and colleagues1 of intraoperative cytology in the diagnosis of testicular Leydig cell tumor and would like to describe our similar experience with an ovarian Leydig cell tumor.A 39-year-old woman presented with androgenic symptoms and was found to have a markedly … WebApr 11, 2024 · Reinke's crystalloids are seen in about 30-40% of cases and appear as dense needle-like or rhomboid structures in the cytoplasm. They are difficult to visualize in histologic sections but are … bapesta sax

Webpathology.com: A Collection of Surgical Pathology …

Ovarian Leydig cells (OLC): A histomorphological and ... - PubMed

WebAlthough testosterone-secreting adrenal adenomas are unusual, those that contain crystalloids of Reinke are extremely rare. Our case is the fourth reported case of virilizing adrenal adenomas with similar biochemical profiles that demonstrated these inclusions characteristic of Leydig cells. WebThe latter are known as crystalloids of Reinke, and their presence is diagnostic of a Leydig cell tumor. Most Leydig cell tumors develop in the hilum of the ovary and are sometimes … bapesta rugWebReinke CRs are crystalline structures and are found in the cyto- plasm of human testicular interstitial cells (Leydig cells) which produce testosterone18). The functional signi・…ance of these structures is also not clear19). Their stainability with fuchsin, iodine, safranin, and Heidenhain hematoxylin was reported by Reinke1). bapesta sharks

"WebMar 1, 2005 · Crystalloids of Reinke are diagnostic for Leydig cell tumor, but examination by conventional frozen section rarely reveals their presence. A method of rapid … " - Crystalloids of reinke

Crystalloids of reinke

Nestin, a neuroectodermal stem cell marker molecule, is ... - Springer

WebApr 1, 1995 · Although crystalloids of Reinke have been identified in only three cases, their absence does not exclude a Leydig cell character in the rest of the reported cases. Our case provides additional support for the hypothesis that Leydig cells are present in the adrenal gland and may have an active role in the pathogenesis of testosterone-secreting ... WebIn normal Leydig cells, nestin was distributed in the perinuclear cytoplasm and accumulated in the crystalloids of Reinke with ageing. In non-tumour pathologies (cryptorchidism, impaired spermatogenesis), the seminiferous tubules were immunonegative, whereas hyperplastic Leydig cells showed cytoplasmic immunolabelling.

Did you know?

WebJul 1, 2006 · Request PDF On Jul 1, 2006, Colin Stewart and others published Cytologic identification of Reinke crystalloids in ovarian Leydig cell tumor Find, read and cite all the research you need on ... WebLeydig cell tumours belong to the small group of ovarian steroid tumors, which are hormone producing and derived from specific stromal cells. Morphologically, their endocrine-like structure is characteristic, formed of large, polyhedral cells

WebDec 1, 1982 · The ultrastructural features of a large-cell calcifying Sertoli cell tumor, including the formation of pseudolumens lined by basal lamina and the absence of crystalloids of Reinke, support its origin from Sertoli rather than Leydig cells. WebTraductions en contexte de "interstitielles de" en français-anglais avec Reverso Context : Mots clés : pacemakers, neuromodulation, cellules interstitielles de Cajal.

WebThe latter are known as crystalloids of Reinke, and their presence is diagnostic of a Leydig cell tumor. Most Leydig cell tumors develop in the hilum of the ovary and are sometimes … WebAnother ovarian tumor where Reinke crystalloids were noted is the Brenner tumour, an epithelial-stromal ovarian tumor distinguishable by nests of transitional epithelial cells …

WebJul 4, 2024 · The cytoplasm also shows rod-shaped crystals referred to as "crystalloids of Reinke," which appear in 35% of tumors, and lipofuscin pigment in a smaller percent (10% to 15%). History and Physical. Like other tumors of the testicle, painless swelling of a testicle is the single most common presentation of Leydig cell tumors.

WebReinke CR are stained with eosin dye, but the contrast is poor. Lysosomes in the cytoplasm are stained red (arrows). C. HE staining þPAM staining. PAM staining ofB. Reinke CRs … bapesta sorayamaWebDec 1, 1985 · Although crystalloids of Reinke have been identified in only three cases, their absence does not exclude a Leydig cell character in the rest of the reported cases. Our case provides additional support for the hypothesis that Leydig cells are present in the adrenal gland and may have an active role in the pathogenesis of testosterone-secreting ... bapesta sharkWebReinke crystals appear to be hallmarks of normally differentiated, adult, Leydig or Leydig-like cells in humans, while some abnormal and nonhuman Leydig cells contain Reinke-like paracrystalline inclusions or crystalloids. bapesta tagWebtein cells is the presence of crystalloids of Reinke in some of the Leydig cells. Since many Leydig cells (as in the normal testis) contain no crystalloids, they may be difficult or impossible to distinguish from lutein cells in some neoplasms. Nevertheless, the distinc- tion between these cells in neoplasms is worth bapesta shoes kanyeWebReinke crystalloids: ( rīn'kĕ ), rod-shaped crystallike structures with pointed or rounded ends present in the interstitial cells of the testis (Leydig cells) and ovary. bapesta star pants bapesta supermanWebsional crystalloids of Reinke were identified within the hilus cells. Microscopic sections of the left ovary showed a fibroma with extensive hyalinization. A leiomyoma was present in the myometrium. The endometrium showed cystic atrophy. The fallopian tubes were unremarka- ble. Case 2. Clinical findings: A 47-year-old Cau- bapesta uk