Crystalloids of reinke

Author: rlgd

August undefined, 2024

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.

Reinke crystals: Hallmarks of adult Leydig cells in humans

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 ... 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. fix my at button

Rama Ba - Academia.edu

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. WebMay 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. WebTraductions en contexte de "interstitielles de" en français-anglais avec Reverso Context : Mots clés : pacemakers, neuromodulation, cellules interstitielles de Cajal. fix my attic liability insurance

Webpathology.com: A Collection of Surgical Pathology …

Cytologic Identification of Reinke Crystalloids in Ovarian Leydig …

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 ... 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 … can navage be harmfulWebThe 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). fix my att email

"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

Ovarian stromal tumors containing leydig cells. I. Stromalâ …

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 … 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.

Did you know?

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

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.

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

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 can nausea linger after covidWebMar 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 … can nausea last whole pregnancyWebApr 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 … fix my atvWebThe 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 … fix my att.net email accountWebcrystalloids 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 fix my atticWebMay 4, 2004 · Similarly, the crystalloids of Reinke could be sticky sites that attract antibodies indiscriminately and, therefore, the possibility of false-positive nestin staining … fix my artWebReinke 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 … can navage be used on children