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See detailReceptor expression in craniopharyngiomas causing tumor growth in pregnancy : case report and review of the literature
VROONEN, Laurent ULg; Tome Garcia, M; THIRY, Albert ULg et al

in Abstract book - Symposium "Perspectives in Endocrinology" Congresses Highlights 2013:ECE Copenhagen, ENDO SF, SFE Paris (2014, February)

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See detailReceptor expression in craniopharyngiomas causing tumor growth in pregnancy : case report and review of the literature
Tome, M; VROONEN, Laurent ULg; THIRY, Albert ULg et al

in Annales d'Endocrinologie (2013, October), 74

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See detailReceptor expression in craniopharyngiomas causing tumor growth in pregnancy : case report and review of the literature
Tome, Monica; VROONEN, Laurent ULg; THIRY, Albert ULg et al

in Endocrine Abstracts - 15th European Congress of Endocrinology (2013, May)

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See detailCharacterization of spontaneous bone marrow recovery after sublethal total body irradiation: importance of the osteoblastic/adipocytic balance.
Poncin, Géraldine ULg; Beaulieu, Aurore ULg; Humblet, Chantal ULg et al

in PLoS ONE (2012), 7(2), 30818

Many studies have already examined the hematopoietic recovery after irradiation but paid with very little attention to the bone marrow microenvironment. Nonetheless previous studies in a murine model of ... [more ▼]

Many studies have already examined the hematopoietic recovery after irradiation but paid with very little attention to the bone marrow microenvironment. Nonetheless previous studies in a murine model of reversible radio-induced bone marrow aplasia have shown a significant increase in alkaline phosphatase activity (ALP) prior to hematopoietic regeneration. This increase in ALP activity was not due to cell proliferation but could be attributed to modifications of the properties of mesenchymal stem cells (MSC). We thus undertook a study to assess the kinetics of the evolution of MSC correlated to their hematopoietic supportive capacities in mice treated with sub lethal total body irradiation. In our study, colony-forming units - fibroblasts (CFU-Fs) assay showed a significant MSC rate increase in irradiated bone marrows. CFU-Fs colonies still possessed differentiation capacities of MSC but colonies from mice sacrificed 3 days after irradiation displayed high rates of ALP activity and a transient increase in osteoblastic markers expression while ppargamma and neuropilin-1 decreased. Hematopoietic supportive capacities of CFU-Fs were also modified: as compared to controls, irradiated CFU-Fs significantly increased the proliferation rate of hematopoietic precursors and accelerated the differentiation toward the granulocytic lineage. Our data provide the first evidence of the key role exerted by the balance between osteoblasts and adipocytes in spontaneous bone marrow regeneration. First, (pre)osteoblast differentiation from MSC stimulated hematopoietic precursor's proliferation and granulopoietic regeneration. Then, in a second time (pre)osteoblasts progressively disappeared in favour of adipocytic cells which down regulated the proliferation and granulocytic differentiation and then contributed to a return to pre-irradiation conditions. [less ▲]

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See detailCancer du sein: importance de la nomenclature anatomo-pathologique
BLETARD, Noëlla ULg; DETREMBLEUR, Nancy ULg; SCAGNOL, Irène ULg et al

in Revue Médicale de Liège (2011), 66(5-6), 261-4

The breast pathology includes a large array of entities for which macroscopic and microscopic analysis remains fundamental. Tissue and cell morphology allows in most cases the distinction between benign ... [more ▼]

The breast pathology includes a large array of entities for which macroscopic and microscopic analysis remains fundamental. Tissue and cell morphology allows in most cases the distinction between benign or malignant tumours and therefore provides the clinicians with essential information for the therapeutic strategy. In the Pathology laboratory, immunohistochemistry and molecular biology have improved the specificity of the diagnosis and have introduced new prognostic and predictive markers for tumour management. The last edition of the WHO classification, released in 2003, distinguishes 21 varieties of invasive carcinoma and 2 categories of intraepithelial neoplasia based on the morphology and immunohistochemical profile. Other diseases can affect the breast, although much less frequently, such as Paget’s disease of the nipple, phyllode tumours, sarcomas, lymphomas... These diseases will not be reviewed here. [less ▲]

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See detailEtude génétique et anatomopathologique du syndrome de McCune-Albright chez l'adulte
Beckers, Albert ULg; Burlacu, Maria Cristina ULg; Thiry, Albert ULg et al

in Annales d'Endocrinologie (2010, September), 71(5), 345

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See detailAnatomo-pathological and genetic studies of adult McCune-Albright syndrome
Burlacu, Maria Cristina ULg; Thiry, Albert ULg; Livadariu, Elena ULg et al

in European Neuroendocrine Association - Liège, 22-25 septembre 2010 (2010, September)

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See detailEtude génétique et anatomopathologique du syndrome de McCune-Albright chez l'adulte
Beckers, Albert ULg; Burlacu, M.; Thiry, Albert ULg et al

in 27ème Congrès de la Société Française d'Endocrinologie - Deauville, 29 septembre - 2 octobre 2010 (2010, September)

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See detailTesticular effects of isolated luteinizing hormone deficiency and reversal by long-term human chorionic gonadotropin treatment.
Valdes Socin, Hernan Gonzalo ULg; Salvi, Roberto; Thiry, Albert ULg et al

in Journal of Clinical Endocrinology and Metabolism (2009), 94(1), 3-4

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See detailAngiosarcome sur lymphoedeme chronique: un cas de syndrome de Stewart-Treves.
Gonne, E.; Collignon, Joëlle ULg; Kurth, William ULg et al

in Revue Médicale de Liège (2009), 64(7-8), 409-13

The Stewart-Treves Syndrome is defined as an angiosarcoma (very aggressive malignant tumor originating from endothelial cells) appearing in a specific clinical setting. This tumor develops in patients ... [more ▼]

The Stewart-Treves Syndrome is defined as an angiosarcoma (very aggressive malignant tumor originating from endothelial cells) appearing in a specific clinical setting. This tumor develops in patients suffering from chronic lymphedema of the upper limb following mastectomy and axillary lymph node dissection for breast cancer. The diagnosis relies on medical history, clinical examination and a histological assesment (biopsy or resection). This syndrome represents a rare clinical entity. Unfortunately, the prognosis is poor. A large surgical resection is the treatment of choice if the patient is a candidate for a surgical resection with a curative intent Radiotherapy is sometimes used as a palliative local treatment. Chemotherapy is only used in more advanced cases, not curable by surgery alone. [less ▲]

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See detailAnatomo-pathological and genetic studies of adult McCune-Albright syndrome
Burlacu, M. C.; Thiry, Albert ULg; Livadariu, E. et al

in 18th Meeting of the Belgian Endocrine and Metabolic societies : Bruxelles, 25 octobre 2008 (2008, October)

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See detailHuman bone marrow adipocytes block granulopoiesis through neuropilin-1-induced granulocyte colony-stimulating factor inhibition.
Belaid-Choucair, Zakia ULg; Lepelletier, Yves; Poncin, Géraldine ULg et al

in Stem Cells (2008), 26(6), 1556-64

Adipocytes are part of hematopoietic microenvironment, even though up to now in humans, their role in hematopoiesis is still questioned. We have previously shown that accumulation of fat cells in femoral ... [more ▼]

Adipocytes are part of hematopoietic microenvironment, even though up to now in humans, their role in hematopoiesis is still questioned. We have previously shown that accumulation of fat cells in femoral bone marrow (BM) coincides with increased expression of neuropilin-1 (NP-1), while it is weakly expressed in hematopoietic iliac crest BM. Starting from this observation, we postulated that adipocytes might exert a negative effect on hematopoiesis mediated through NP-1. To test this hypothesis, we set up BM adipocytes differentiated into fibroblast-like fat cells (FLFC), which share the major characteristics of primitive unilocular fat cells, as an experimental model. As expected, FLFCs constitutively produced macrophage colony stimulating factor and induced CD34(+) differentiation into macrophages independently of cell-to-cell contact. By contrast, granulopoiesis was hampered by cell-to-cell contact but could be restored in transwell culture conditions, together with granulocyte colony stimulating factor production. Both functions were also recovered when FLFCs cultured in contact with CD34(+) cells were treated with an antibody neutralizing NP-1, which proved its critical implication in contact inhibition. An inflammatory cytokine such as interleukin-1 beta or dexamethasone modulates FLFC properties to restore granulopoiesis. Our data provide the first evidence that primary adipocytes exert regulatory functions during hematopoiesis that might be implicated in some pathological processes. Disclosure of potential conflicts of interest is found at the end of this article. [less ▲]

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See detailCharacterization of a family harboring a novel LHBéta subunit mutation associated with hypogonadism
Burlacu, M. C.; Daly, Adrian ULg; Salvi, R. et al

in 17th Meeting of the Belgian Endocrine Society : Bruxelles, 25 novembre 2007 (2007, November)

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See detailSyndrome de McCune-Albright : de la clinique à la pathologie
Beckers, Albert ULg; Thiry, Albert ULg

Scientific conference (2006, December 02)

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See detailIdentification of a family harboring a novel LHBéta subunit mutation associated with hypogonadism
Daly, Adrian ULg; Salvi, R.; Ménagé, J.-J. et al

in The Endocrine Society's - 88th Annual Meeting - Abstract book (2006, June)

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See detailPrimary sarcoma of an abdominal aortic aneurysm
Defawe, O.D.; Thiry, Albert ULg; Lapiere, C.M. et al

in Abdominal Imaging (2006), 31(1, Jan-Feb), 117-119

Primary tumors of the aorta are extremely rare and the diagnosis is made most often after surgery or autopsy. Because clinical symptoms of abdominal sarcoma are similar to those of occlusive or aneurysmal ... [more ▼]

Primary tumors of the aorta are extremely rare and the diagnosis is made most often after surgery or autopsy. Because clinical symptoms of abdominal sarcoma are similar to those of occlusive or aneurysmal disease, aortic sarcomas are frequently mistaken for these lesions. The imaging findings are frequently nonspecific and therefore do not allow a definitive preoperative diagnosis. We report a case of an epithelioid angiosarcoma in the vessel wall of an abdominal aortic aneurysm. [less ▲]

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See detailCarcinoid tumor of the appendix: A consecutive series from 1237 appendectomies
Tchana-Sato, Vincent ULg; Detry, Olivier ULg; Polus, Marc ULg et al

in World Journal of Gastroenterology (2006), 12(41), 6699-6701

AIM: To report the experience of the CHU Sart Tilman, University of Liege, Belgium, in the management of appendiceal carinoid tumor. METHODS: A retrospective review of 1237 appendectomies performed in one ... [more ▼]

AIM: To report the experience of the CHU Sart Tilman, University of Liege, Belgium, in the management of appendiceal carinoid tumor. METHODS: A retrospective review of 1237 appendectomies performed in one single centre from January 2000 to May 2004, was undertaken. Analysis of demographic data, clinical presentation, histopathology, operative reports and outcome was presented. RESULTS: Among the 1237 appendectomies, 5 appendiceal carcinoid tumors were identified (0.4%) in 4 male and 1 female patients, with a mean age of 29.2 years (range: 6-82 years). Acute appendicitis was the clinical presentation for all patients. Four patients underwent open appendectomy and one a laparoscopic procedure. One patient was reoperated to complete the excision of mesoappendix. All tumors were located at the tip of the appendix with a mean diameter of 0.6 cm (range: 0.3-1.0 cm). No adjuvant therapy was performed. All patients were alive and disease-free during a mean follow-up of 33 mo. CONCLUSION: Appendiceal carcinoid tumor most often presents as appendicitis. In most cases, it is found incidentally during appendectomies and its diagnosis is rarely suspected before histological examination. Appendiceal carcinoid tumor can be managed by simple appendectomy and resection of the mesoappendix, if its size is <= 1 cm. (C) 2006 The WJG Press. All rights reserved. [less ▲]

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See detailComment j'explore... Une valeur élevée de calcitonine?
Rikir, Estelle ULg; Valdes Socin, Hernan Gonzalo ULg; Vroonen, Laurent ULg et al

in Revue Médicale de Liège (2006), 61(3), 195-200

This article describes a case of lung cancer with associated hypercalcitoninemia in a man with a goitre. The case raises the problem of the differential diagnosis between medullary thyroid carcinoma and a ... [more ▼]

This article describes a case of lung cancer with associated hypercalcitoninemia in a man with a goitre. The case raises the problem of the differential diagnosis between medullary thyroid carcinoma and a neuroendocrine neoplasm with ectopic calcitonin secretion. The article first reviews the physiology of calcitonin, then outlines the diagnostic tests that are required to investigate hypercalcitoninemia and finally discusses the interpretation of test results. [less ▲]

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See detailL'echinococcose alveolaire: une zoonose d'apparition recente en Wallonie
Wauters, Odile ULg; Honore, Charles ULg; Detry, Olivier ULg et al

in Revue Médicale de Liège (2005), 60(11), 867-74

Alveolar echinococcosis is a serious parasitic disease, leading to large hepatic lesions. It must be distinguished from cystic echinococcosis, or hydatic cyst, caused by Echinococcus granulosus. Early ... [more ▼]

Alveolar echinococcosis is a serious parasitic disease, leading to large hepatic lesions. It must be distinguished from cystic echinococcosis, or hydatic cyst, caused by Echinococcus granulosus. Early diagnosis may allow surgical removal of the lesions by segmental hepatectomy, the only curative treatment. Parasitostatic medical treatment with albendazole may promote stabilization of the disease. Until recently, Belgium was considered a country at very low risk for alveolar echinococcosis, as no human case was reported, despite up to 51% of fox infection in southern Belgium autopsy series. Recently four patients presented with alveolar echinococcosis at the University Hospital Center of Liege, leading to the fear of a possible alveolar echinococcosis endemy in southern Belgium. Two of these patients underwent curative hepatectomy, but the other two had already pulmonary metastases at diagnosis and received palliative albendazole therapy. This article presents these cases, and reviews the clinical features of this parasitic disease. [less ▲]

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See detailMale Hypogonadism caused by isolated luteinizing hormone deficiency
Daly, Adrian ULg; Salvi, R.; Petrossians, Patrick ULg et al

in 37th International symposium - GH and Growth Factors in Endocrinology and Metabolism (Athènes Symposium) (2005)

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