Crystalloids of reinke

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August undefined, 2024

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 … 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 …

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

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. 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. poly rope cowboy hats

Reinke crystals - Wikiwand

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

Testosterone-Secreting Adrenal Adenoma That Contained Crystalloids …

Reinke crystalloids definition of Reinke crystalloids by Medical

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. 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. shannon bascombeWebDec 1, 1985 · An adrenal cortical adenoma containing neoplastic cells indistinguishable from Leydig cells, including the demonstration of characteristic crystalloids of Reinke, was shown to be the source of the elevated testosterone level. poly root words that mean many

"WebReinke 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. " - Crystalloids of reinke

Crystalloids of reinke

WebReinke 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 … WebAnother ovarian tumor where Reinke crystalloids were noted is the Brenner tumour, an epithelial-stromal ovarian tumor distinguishable by nests of transitional epithelial cells …

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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 … WebCrystalloids of Reinke were identified in 35% of the tumors. Conspicuous nuclear atypicality was present in 12 tumors and the mitotic rate ranged from less than 1 to 32/10 high-power fields. Blood vessel invasion, lymphatic invasion, or both were identified in four tumors. Follow-up of 2 months to 22 years (average 4 years) was available for 30 ...

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

WebThe 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).

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.

WebApr 7, 2024 · slide 5 of 104. This touch prep was prepared from the freshly cut tumor surface (same case as previous image). The smear was alcohol-fixed and stained with H&E. Several intact and fragmented Reinke's … polyrope fenceWebFeb 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 ... shannon battiste attorney louisianaWebMay 4, 2004 · Similarly, the crystalloids of Reinke could be sticky sites that attract antibodies indiscriminately and, therefore, the possibility of false-positive nestin staining … shannon bauderWebThe 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 … poly rope garden furnitureWebMay 4, 2004 · In 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. polyropes storm 18mmWebReinke 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. shannon baughman erie paWebAlthough 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. polyrope fence installation