ACTH and alpha-subunit are co-expressed in rare human pituitary corticotroph cell adenomas proposed to originate from ACTH-committed early pituitary progenitor cells.

abstract：:Deregulation of the Wnt pathway has been implicated in oncogenesis of numerous tissues including the pituitary gland. Immunohistochemical localization and quantification of β-catenin, Cyclin D1, c-MYC and Survivin expression in 47 pituitary adenomas (35 non-functioning, seven GH-secreting, three prolactinomas, two ACT...

journal_title：Endocrine pathology

authors： Formosa R,Gruppetta M,Falzon S,Santillo G,DeGaetano J,Xuereb-Anastasi A,Vassallo J

更新日期：2012-06-01 00:00:00

abstract：:Neuroendocrine secretory protein-55 (NESP-55) is a recently described member of the chromogranin family and appears to be a marker of the constitutive secretory pathway in certain neural, neuroendocrine, and endocrine cell types. It has been shown to be selectively expressed in tumors differentiating towards the adren...

journal_title：Endocrine pathology

authors： Gupta M,Lloyd RV,Fischer-Colbrie R,Tischler AS,Dayal Y

更新日期：2011-09-01 00:00:00

abstract：:Collision tumors of the sella turcica are rare and consist mainly of more than one type of pituitary adenoma, usually a corticotropin- and a prolactin-producing adenoma. The association of a craniopharyngioma and a pituitary adenoma is rare. Herein, we report the first case of an association between craniopharyngioma ...

journal_title：Endocrine pathology

authors： Moshkin O,Scheithauer BW,Syro LV,Velasquez A,Horvath E,Kovacs K

更新日期：2009-04-01 00:00:00

abstract：:A case of localized adiposity of the thyroid in a 35-year-old woman with a long history of steroid therapy for nephrotic syndrome is reported. A well-demarcated yellowish mass measuring 2 cm in diameter was found in the upper portion of the right lobe of the thyroid. Microscopically, this lesion was composed of mature...

journal_title：Endocrine pathology

authors： Morizumi H,Sano T,Tsuyuguchi M,Yoshinarl T,Morimoto S

更新日期：1991-12-01 00:00:00

abstract：:The prognostic significance of neuroendocrine differentiation in colorectal carcinoma is uncertain. We analyzed 289 moderately differentiated (grades II and Ill) colorectal carcinomas for neuroendocrine differentiation by immunohistochemistry and in situ hybridization. The tumors were divided into three groups based o...

journal_title：Endocrine pathology

authors： Lloyd RV,Schroeder G,Bauman MD,Krook JE,Jin L,Goldberg RM,Farr GH Jr

更新日期：1998-04-01 00:00:00

abstract：:The term noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) was recently proposed to replace noninvasive follicular variant of papillary thyroid carcinoma (FVPTC) both to promote more conservative management of these tumors and spare patients the psychological burden of a cancer diagn...

journal_title：Endocrine pathology

authors： Wong KS,Strickland KC,Angell TE,Nehs MA,Alexander EK,Cibas ES,Krane JF,Howitt BE,Barletta JA

更新日期：2017-06-01 00:00:00

abstract：:Solitary fibrous tumor was initially thought to be a pleura-based tumor. However, over the last two decades, its involvement in a variety of extrapleural sites gained recognition. Nonetheless, a primary involvement of the endocrine organs is rare, and in this report, we detail an instance where the tumor affected the ...

journal_title：Endocrine pathology

authors： Ho YH,Yap WM,Chuah KL

更新日期：2010-06-01 00:00:00

abstract：:There is evidence that programmed death-ligand 1 (PD-L1) is expressed by thyroid follicular epithelium in thyroiditis, but the role of PD-L1 in papillary thyroid carcinoma (PTC) is poorly understood. We aimed to determine whether (1) the presence of background chronic lymphocytic thyroiditis (CLT) or Hashimoto thyroid...

journal_title：Endocrine pathology

authors： Lubin D,Baraban E,Lisby A,Jalali-Farahani S,Zhang P,Livolsi V

更新日期：2018-12-01 00:00:00

abstract：:The diagnosis of follicular-patterned carcinomas, including follicular thyroid carcinoma, oncocytic (Hürthle cell) carcinoma, and the encapsulated follicular variant of papillary thyroid carcinoma, requires evidence of capsular and/or vascular invasion. With minimally invasive carcinomas classified often within less t...

journal_title：Endocrine pathology

authors： Glomski K,Nosé V,Faquin WC,Sadow PM

更新日期：2017-06-01 00:00:00

abstract：:Insulin-like growth factor II mRNA-binding protein 3 (IMP3) is an oncofetal protein highly expressed in fetal tissue and malignant tumors but rarely found in adult benign tissues. In various tumors, IMP3 expression is correlated with increased tumor aggressiveness and reduced overall survival. To our knowledge, IMP3 e...

journal_title：Endocrine pathology

authors： Righi A,Zhang S,Jin L,Scheithauer BW,Kovacs K,Kovacs G,Goth MI,Korbonits M,Lloyd RV

更新日期：2010-03-01 00:00:00

abstract：:The diagnosis of pituitary corticotroph adenoma relies on the demonstration of a loss of the normal feedback control of adrenocorticotropic hormone (ACTH) biosynthesis by cortisol. The marked variability in the degree of ACTH suppression by glucocorticoids in these tumors, however, greatly enhances the difficulty in d...

journal_title：Endocrine pathology

authors： Franscella S,Favrod-Coune CA,Pizzolato G,Asa SL,Gaillard R,Berney J,Philippe J

更新日期：1991-06-01 00:00:00

abstract：:Activating mutations of GNAq protein in a hotspot at codon 209 have been recently described in uveal melanomas. Since these neoplasms share with thyroid carcinomas a high frequency of MAP kinase pathway-activating mutations, we hypothesized whether GNAq mutations could also play a role in the development of thyroid ca...

journal_title：Endocrine pathology

authors： Cassol CA,Guo M,Ezzat S,Asa SL

更新日期：2010-12-01 00:00:00

abstract：:Thyroperoxidase (TPO) is a thyroid-specific enzyme expressed by differentiated thyroid cells. Initial immunohistochemical studies claimed that TPO expression, detected by the monoclonal antibody mAb 47, may be a potentially important diagnostic tool in differentiating malignant from benign lesions. However, some recen...

journal_title：Endocrine pathology

authors： Savin S,Cvejic D,Isic T,Petrovic I,Paunovic I,Tatic S,Havelka M

更新日期：2006-04-01 00:00:00

abstract：:Hyperparathyroidism is caused mainly by three different conditions: namely, secondary hyperplasia, primary hyperplasia, and adenoma with only a few cases due to carcinomas. Histological distinction among these diseases is still difficult. In an attempt to characterize the three conditions, 17 cases from patients with ...

journal_title：Endocrine pathology

authors： Shan L,Iwasaki A,Utsunomiya H,Kawano I,Matsuura N,Kobayashi A,Kuma K,Kakudo K

更新日期：1995-07-01 00:00:00

abstract：:The relationship between chronic lymphocytic thyroiditis (CLT) and papillary thyroid carcinoma (PTC) is a subject of controversy. Some investigators suggest a causal relationship, whereas others regard the two as only a coincidental occurrence. An additional complicating factor is the presence of atypical nuclei frequ...

journal_title：Endocrine pathology

authors： Hunt JL,Baloch ZW,Barnes L,Swalsky PA,Trusky CL,Sesatomi E,Finkelstein S,LiVolsi VA

更新日期：2002-01-01 00:00:00

abstract：:A 31-year-old woman was incidentally found to have a large right adrenal mass by computed tomography imaging and underwent a workup that included endocrinological evaluation and positron emission tomography imaging. Laboratory results revealed the mass to be non-functioning. Imaging studies revealed a 9-cm heterogeneo...

journal_title：Endocrine pathology

authors： Lin J,Wasco MJ,Korobkin M,Doherty G,Giordano TJ

更新日期：2007-01-01 00:00:00

abstract：:To assess the proliferative activity of pituitary adenomas, 36 surgically removed adenomas were studied by light microscopical parameters; mitotic count; expression of PCNA, Ki-67, cathepsin D, and EGF; and image cytometry. Three adenomas (9%) showed high, 11 (34%) medium, 17 (53%) moderate, and 1 (3%) low structural ...

journal_title：Endocrine pathology

authors： Krämer A,Saeger W,Tallen G,Lüdecke DK

更新日期：1994-12-01 00:00:00

abstract：:Nodular corticotrope hyperplasia is a rare pathology causing Cushing's syndrome owing to a primary pituitary disease or ectopic CRH production. In this study, we evaluated the laboratory and pathological findings and results of transsphenoidal pituitary surgery in four patients with Cushing's disease. Dynamic tests of...

journal_title：Endocrine pathology

authors： Salgado LR,Mendonca BB,Goldman J,Semer M,Knoepfelmacher M,Tsanaclis AM,Wajchenberg BL,Liberman B

更新日期：1995-04-01 00:00:00

abstract：:Regulatory T cells (Tregs) are immunosuppressive immune cells that play an important role in tumor development. Suppression of Treg function is considered to be an effective strategy for cancer therapy. Glycoprotein A repetitions predominant (GARP) has been found on the surface of activated Tregs. GARP has been recent...

journal_title：Endocrine pathology

authors： Zhang X,Guo M,Yang J,Zheng Y,Xiao Y,Liu W,Ren F

更新日期：2019-03-01 00:00:00

abstract：:Breast metastases from nonmammary tumors are rare. We report here the first case of pancreatic neuroendocrine carcinoma metastatic to the breast in a patient with possible multiple endocrine neoplasia type 1. The diagnosis was supported by histological examination, immunohistochemistry, and ultrastructural analysis. T...

journal_title：Endocrine pathology

authors： Treilleux I,Freyer G,Tabone E,Chassagne-Clement C,Bremond A,Bailly C

更新日期：1997-10-01 00:00:00

abstract：:Pheochromocytoma is a catecholamine (CA)-producing tumor that is classified into two types: the norepinephrine (NE) and the mixed NE and epinephrine type (E-type) from plasma CA levels. Phenylethanolamine N-methyltransferase (PNMT) is the terminal enzyme in CA synthesis; it catalyzes the synthesis of E from NE. It is ...

journal_title：Endocrine pathology

authors： Kimura N,Togo A,Sugimoto T,Nata K,Okamoto H,Nagatsu I,Nagura H

更新日期：1996-07-01 00:00:00

abstract：:Pheochromocytomas and paragangliomas are neuroendocrine neoplasias of neural crest origin. Genetic mutations that are characterized in other human neoplasms are rarely seen in these tumors. About 10% of the patients with pheochromocytomas and paragangliomas present with a family history of von Hippel-Lindau disease (V...

journal_title：Endocrine pathology

authors： Dannenberg H,Komminoth P,Dinjens WN,Speel EJ,de Krijger RR

更新日期：2003-01-01 00:00:00

abstract：:A case of pancreatic acinar cell tumor (ACC) is presented in a 10-year-old boy. The tumor manifested clinically with Cushing's syndrome, high serum adrenocorticotropic hormone (ACTH) and cortisol concentrations. In addition, excessive serum levels of alpha-fetoprotein (AFP) were detected. Surgical resection was not po...

journal_title：Endocrine pathology

authors： Illyés G,Luczay A,Benyó G,Kálmán A,Borka K,Köves K,Rácz K,Tulassay T,Schaff Z

更新日期：2007-07-01 00:00:00

abstract：:Insulin-like growth factor (IGF)-l and IGF-ll peptides as well as their mRNAs are produced in many organs, including the pituitary. Although IGFl and IGFII peptides are localized in endocrine cells of the anterior pituitary, IGF-l mRNA can be detected throughout the adenohypophysis, and IGF-ll mRNA is abundant in inte...

journal_title：Endocrine pathology

authors： Yokoyama S,Stefaneanu L,Kovacs K

更新日期：1997-10-01 00:00:00

abstract：:Gain-of-function germline mutations of the RET proto-oncogene are responsible for initiation of carcinogenesis within the thyroid gland and development of hereditary form of medullary thyroid carcinoma and MEN2 syndrome. Genotype-phenotype correlations are established for most RET mutations, but the importance of the ...

journal_title：Endocrine pathology

authors： Sromek M,Czetwertyńska M,Tarasińska M,Janiec-Jankowska A,Zub R,Ćwikła M,Nowakowska D,Chechlińska M

更新日期：2017-09-01 00:00:00

abstract：:We report a very rare case of Cushing's syndrome caused by an ileal adrenocorticotrophin-secreting well-differentiated endocrine carcinoma with liver metastases. A 62-yr-old woman presented with clinical and biological signs suggestive of paraneoplastic Cushing's syndrome Radiological investigations, including magneti...

journal_title：Endocrine pathology

authors： Valo I,Rohmer V,Guyetant S,Martin JF,Venault S,Saint-Andre JP

更新日期：2000-01-01 00:00:00

abstract：:The BRAF(V600E) mutation is specific for thyroid papillary cancer (PTC) and correlates with PTCs invasiveness. This study investigated whether detection of BRAF(V600E) mutation can be performed on routinely stained FNABs. We also examined if establishment of the BRAF(V600E) mutation could help in identification of pat...

journal_title：Endocrine pathology

authors： Patel A,Klubo-Gwiezdzinska J,Hoperia V,Larin A,Jensen K,Bauer A,Vasko V

更新日期：2011-12-01 00:00:00

abstract：:CD44 and orthopedia homeobox protein (OTP) expressions have shown to be predictive of overall survival in pulmonary carcinoid (PC) tumours. The scope of the present study was to validate their role in PC patients and investigate potential application in clinical practice. Data was collected from patients presenting to...

journal_title：Endocrine pathology

authors： Papaxoinis G,Nonaka D,O'Brien C,Sanderson B,Krysiak P,Mansoor W

更新日期：2017-03-01 00:00:00

abstract：:Although most papillary thyroid carcinomas behave as low-grade neoplasms and are generally associated with a good prognosis, some subgroups of these neoplasms represent more aggressive variants. In order to determine if differences in the behavior of these papillary carcinomas were related to expression of growth fact...

journal_title：Endocrine pathology

authors： Lloyd RV,Ferreiro JA,Jin L,Sebo TJ

更新日期：1997-01-01 00:00:00

abstract：:An adenoma resected from a 49-yr-old woman was clinically nonfunctioning but immunopositive for adrenocorticotropic hormone (ACTH) in a few cells. Electron microscopy demonstrated a vacuolar change in Golgi complexes known as "honeycomb Golgi." Recurrent adenoma resected 11 mo later was positive for ACTH in more cells...

journal_title：Endocrine pathology

authors： Sano T,Kovacs K,Asa SL,Yamada S,Sanno N,Yokoyama S,Takami H

更新日期：2002-07-01 00:00:00