Crystalloids of reinke

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August undefined, 2024

WebReinke 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 … WebReinke 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 …

Cytologic identification of reinke crystalloids in scrapings …

Webtein 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 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. how to save a png file as a pdf file

Reinke crystals: Hallmarks of adult Leydig cells in humans

WebReinke crystalloids: ( rīn'kĕ ), rod-shaped crystallike structures with pointed or rounded ends present in the interstitial cells of the testis (Leydig cells) and ovary. 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, 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 ... how to save a png file as 300 dpi

Testosterone-Secreting Adrenal Adenoma That Contained Crystalloids …

Virilizing ovarian Leydig cell tumour - Rama Ba - Academia.edu

WebTraductions en contexte de "interstitielles de" en français-anglais avec Reverso Context : Mots clés : pacemakers, neuromodulation, cellules interstitielles de Cajal. WebThe histological features showed Leydig cell tumor without Reinke crystalloids. AB - A 53-year-old male presen ted with a right inguinal mass of one-year duration. The fine needle aspiration of the inguinal mass showed a highly cellular tumor composed of sheets and isolated, large round to polygonal cells with moderate pleomorphism. Many bare ... how to save a plum seedWebIn 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. how to save a podcast

"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 … " - Crystalloids of reinke

Crystalloids of reinke

Large-cell calcifying sertoli cell tumor of the testis - ScienceDirect

WebReinke crystals (RC) are pathognomonic of Leydig cells (LCs); they are thought to be rare in normal testes and to occur only in approximately one third of LC tumors. We noticed that … 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 …

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WebMay 4, 2004 · Similarly, the crystalloids of Reinke could be sticky sites that attract antibodies indiscriminately and, therefore, the possibility of false-positive nestin staining … 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 …

WebMay 18, 2009 · Crystalloids of Reinke were seen in plenty, thus establishing the tumor to be of Leydig cell subtype (Figure 4) [4, 5]. The tumor capsule was intact and there was no evidence of vascular invasion. Peritoneal fluid cytology did not reveal any malignant cells. Intra-operatively, no significant lymph nodes were noted. 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.

WebJun 4, 2024 · Reinke crystals are structures pathognomonic for Leydig cells, which have the important function of testosterone production and are vital for male … 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 ...

WebHowever, conventional frozen section rarely reveals their presence. A method of rapid identification of crystalloids of Reinke could improve the intraoperative diagnosis. We …

Webcrystalloids of Reinke, more closely resemble those of a theca-lutein cell than a granulose-lutein or hilus cell and support a stromal origin. However, this tumor illustrates the striking overlap in mor- phologic features and function among granulosa, theca, hilus, and Leydig cells. Cancer 51: 1858- 1865, 1983. G northerwoodWebReinke crystals are rod-like cytoplasmic inclusions which can be found in Leydig cells of the testes. [1] Occurring only in adult humans and wild bush rats, their function is unknown. [2] Ovarian stromal tumors having a predominant pattern of fibroma or thecoma but also … north escambia co newsWebAnother ovarian tumor where Reinke crystalloids were noted is the Brenner tumour, an epithelial-stromal ovarian tumor distinguishable by nests of transitional epithelial cells … how to save a png from cricutWebFeb 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 … how to save a pose in daz studioWebReinke crystalloid (CR)s are rod or corn shaped structures present in the interstitial cells (Leydig cell) of human testis. Due to existing controversies and because of their importance in histological studies, we decided to reevaluate their staining behavior with various dyes. how to save a po in sapWebThe morphological (including crystalloids of Reinke) and immunohistochemical (positivity for calretinin and alpha-inhibin) findings were similar to those described for testicular LC. Therefore, OHC can be considered ovarian Leydig cells (OLC). how to save a powerdirector file into a mp4WebReinke 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. north esk church