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Henrik Falhammar, Magnus Kjellman, Jan Calissendorff
BACKGROUND: With the increasing access to imaging more pheochromocytomas are diagnosed in the workup of adrenal incidentalomas. This may have changed the occurrence of the classic presentation with hypertension and the classic triad (headaches, sweating and palpitation). METHODS: We reviewed 94 consecutive cases of pheochromocytomas. Two cases of ectopic ACTH-syndrome were subsequently excluded. RESULTS: Of the 92 cases included 64% had presented as an incidentaloma, 32% as a suspected pheochromocytoma and 4% had been screened because of previously diagnosed MEN2A...
January 2018: Endocrine Connections
Mahmoud Hashemzaei, Amin Delarami Far, Arezoo Yari, Reza Entezari Heravi, Kaveh Tabrizian, Seyed Mohammad Taghdisi, Sarvenaz Ekhtiari Sadegh, Konstantinos Tsarouhas, Dimitrios Kouretas, George Tzanakakis, Dragana Nikitovic, Nikita Yurevich Anisimov, Demetrios A Spandidos, Aristides M Tsatsakis, Ramin Rezaee
The present study focused on the elucidation of the putative anticancer potential of quercetin. The anticancer activity of quercetin at 10, 20, 40, 80 and 120 µM was assessed in vitro by MMT assay in 9 tumor cell lines (colon carcinoma CT‑26 cells, prostate adenocarcinoma LNCaP cells, human prostate PC3 cells, pheocromocytoma PC12 cells, estrogen receptor‑positive breast cancer MCF‑7 cells, acute lymphoblastic leukemia MOLT‑4 T‑cells, human myeloma U266B1 cells, human lymphoid Raji cells and ovarian cancer CHO cells)...
August 2017: Oncology Reports
Giacomo Accardo, Giovanni Conzo, Daniela Esposito, Claudio Gambardella, Marco Mazzella, Filomena Castaldo, Carlo Di Donna, Andrea Polistena, Nicola Avenia, Vittorio Colantuoni, Dario Giugliano, Daniela Pasquali
Medullary thyroid carcinoma (MTC) represents 3-5% of thyroid cancers. 75% is sporadic and 25% is the dominant component of the hereditary multiple endocrine neoplasia (MEN) type 2 syndromes. Three different subtypes of MEN2, such as MEN2A, MEN2B, and Familial MTC (FMTC) have been defined, based on presence or absence of hyperparathyroidism, pheocromocytoma and characteristic clinical features. Mutations of the RET proto-oncogene are implicated in the pathogenesis of MTC, but there are many other mutational patterns involved...
May 2017: International Journal of Surgery
Julia Campos-Fernández, Esperanza Aguillo-Gutiérrez, Ana Agudo-Tabuenca, Ana Lidia Medrano-Navarro, Laura Borau-Maorad
No abstract text is available yet for this article.
March 2017: Endocrinología, Diabetes y Nutrición
Mara Carsote, Adina Ghemigian, Dana Terzea, Ancuta Augustina Gheorghisan-Galateanu, Ana Valea
BACKGROUND AND AIM: The cysts may potentially affect any organ; adrenals cysts are rare. This is a review of the literature regarding adrenal cysts, focusing on children and young adults. GENERAL DATA: Three major types have been described: pure cysts (endothelial, epithelial, and hemorrhagic or pseudocyst), parasitic (as hydatid) cysts and cystic part of a tumour (most frequent are neuroblastoma, ganglioneuroma, pheocromocytoma, and teratoma). The complications are: bleeding, local pressure effects; infection; rupture (including post-traumatic); arterial hypertension due to renal vessels compression...
2017: Clujul Medical (1957)
Nobumasa Ohara, Yasuyuki Uemura, Naomi Mezaki, Keita Kimura, Masanori Kaneko, Hirohiko Kuwano, Katsuya Ebe, Toshio Fujita, Takeshi Komeyama, Hiroyuki Usuda, Yuto Yamazaki, Takashi Maekawa, Hironobu Sasano, Kenzo Kaneko, Kyuzi Kamoi
BACKGROUND: Pheochromocytomas are rare catecholamine-producing neuroendocrine tumors. Hypertension secondary to pheochromocytoma is often paroxysmal, and patients occasionally present with sudden attacks of alternating hypertension and hypotension. Spontaneous, extensive necrosis within the tumor that is associated with catecholamine crisis is an infrequent complication of adrenal pheochromocytoma, but its pathogenesis remains unclear. CASE PRESENTATION: A 69-year-old Japanese man developed acute-onset episodic headaches, palpitations, and chest pains...
October 12, 2016: Journal of Medical Case Reports
Victor Srougi, Jose L Chambo, Fabio Y Tanno, Iracy S Soares, Madson Q Almeida, Maria A A Pereira, Miguel Srougi, Maria C Fragoso
PURPOSE: To evaluate the presentation and early surgical outcomes of elderly patients undergoing adrenalectomy for phaeochromocytoma. PATIENTS AND METHODS: A retrospective search was performed of our adrenal disorders database for patients who underwent surgery for phaeochromocytoma or paraganglioma between 2009 and 2014. Patients >60 years old were classified as elderly. The clinical manifestations, intraoperative course, and early postoperative outcomes of elderly patients were compared to those of younger individuals (<60 years old)...
July 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Amr El Kouny, Mohammed Al Harbi, Rashid Muhammad Arif, Nazar Ilyas, El Abbasy Omar Hamed, Maqsood Memon, Ali Nawaz, Vassilios Dimitriou
A 52 yearold female presented with a thoracic paravertebral tumour causing spinal nerve root compression and lower limbs neurologic symptoms. The patient was scheduled to undergo thoracic decompression laminectomy and instrumentation. Markedly severe hemodynamic fluctuations happened during the manipulation of the tumor and continued after the tumor was removed. After multimodal antihypertensive therapy the vital signs were adequately managed and the surgery was successfully performed without complications...
February 2016: Middle East Journal of Anesthesiology
Eugenia Yiannakopoulou
Nowadays robotic assisted adrenalectomy has become an alternative to conventional laparoscopic adrenalectomy. However, evidence on the possible advantages and drawbacks of robotic assisted adrenalectomy remains still limited. This manuscript aimed to review evidence on robotic assisted adrenalectomy in terms of surgical technique, feasibility, indications, oncological outcome and safety. Existing evidence, although limited, suggests that robotic assisted adrenalectomy is feasible and safe. However, the number of patients submitted to robotic assisted adrenalectomy is limited with the majority of them being operated for benign disease...
April 2016: International Journal of Surgery
Fabio Cesar Miranda Torricelli, Giovanni Scala Marchini, Jose Roberto Colombo, Rafael Ferreira Coelho, Willian Carlos Nahas, Miguel Srougi
A 25-year-old hypertensive female patient was referred to our institution. Initial workup exams demonstrated a 2.8 cm cortical lower pole tumor in the right kidney. She underwent laparoscopic partial nephrectomy without complications. Histopathologic examination revealed a rare juxtaglomerular cell tumor known as reninoma. After surgery, she recovered uneventfully and all medications were withdrawn. Case hypothesis: Secondary arterial hypertension is a matter of great interest to urologists and nephrologists...
January 2015: International Braz J Urol: Official Journal of the Brazilian Society of Urology
V Ambrosini, J J Morigi, C Nanni, P Castellucci, S Fanti
Neuroendocrine neoplasms (NEN) functional imaging is an evolving field that witnessed major advances in the past two decades. The routine use of PET/CT with an array of new radiotracers to specifically study NEN resulted in an increase in lesions detection. Currently, PET radiopharmaceuticals for NEN imaging include both metabolic ([18F]DOPA, [18F]FDG, [11C]/[18F]-HTP) and receptor-mediated compounds ([68Ga]DOTA-peptides). Discussion is still on-going regarding the clinical setting that may benefit the most from the use of one tracer over the other...
March 2015: Quarterly Journal of Nuclear Medicine and Molecular Imaging
C Spinelli, L Rossi, A Barbetta, C Ugolini, S Strambi
BACKGROUND AND AIMS: Ganglioneuromas are benign tumors which originate from the neural crest. This tumor affects mainly young patients rather than adult ones, and its most frequent localizations are mediastinum, retroperitoneum, adrenal glands and cervical region. Usually, ganglioneuromas are discovered as incidentalomas since they are often asymptomatic, even if they could present sympathetic or mass-related symptoms. To obtain a definitive diagnosis, histological exam is necessary since CT scan and MRI are not capable of distinguishing ganglioneuromas from other tumors, such as neuroblastomas or pheocromocytomas...
May 2015: Journal of Endocrinological Investigation
Giovanni Dapri, Viola Zulian, Maria Bortes, Guy-Bernard Cadière
No abstract text is available yet for this article.
March 2015: Surgical Oncology
S Hausen, A Treusch, C Hermes, P Boekstegers
This article presents the case of a patient with sudden onset of heart failure caused by transient severe left ventricular dysfunction with the typical pattern of stress-induced cardiomyopathy (takotsubo cardiomyopathy) who had wasp sting a few hours before admission in the presence of a previously asymptomatic pheochromocytoma. There seems to be correlation between the wasp-venom-induced pheochomocytoma crisis and acute onset of heart failure. Once pheocromocytoma is diagnosed, medical therapy is preferable before surgical treatment...
November 2014: Medizinische Klinik, Intensivmedizin und Notfallmedizin
Giovanni Cochetti, Francesco Barillaro, Andrea Boni, Michele Del Zingaro, Mearini Ettore
The Paraganglioma is the most common extra-adrenal pheochromocytoma arising from neural crest (1) (It will better to write: The paraganglioma is an extra-adrenal pheocromocytoma arising from the neural crest. 10% of pheocromocytomas are extra-adrenal and can arise form chromaffin tissue derived from primitive neuroectoderm). Minimally invasive techniques allow surgeons to perform the procedure without wide exposure and mobilization of intra abdominal organs. To our knowledge we present the third case of robotic excision of a retroperitoneal paraganglioma...
March 2014: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Rahul Gawri, Derek H Rosenzweig, Emerson Krock, Jean A Ouellet, Laura S Stone, Thomas M Quinn, Lisbet Haglund
INTRODUCTION: Excessive mechanical loading of intervertebral discs (IVDs) is thought to alter matrix properties and influence disc cell metabolism, contributing to degenerative disc disease and development of discogenic pain. However, little is known about how mechanical strain induces these changes. This study investigated the cellular and molecular changes as well as which inflammatory receptors and cytokines were upregulated in human intervertebral disc cells exposed to high mechanical strain (HMS) at low frequency...
January 23, 2014: Arthritis Research & Therapy
Massimo Milione, Sara Pusceddu, Patrizia Gasparini, Flavia Melotti, Patrick Maisonneuve, Vincenzo Mazzaferro, Filippo G de Braud, Giuseppe Pelosi
Immunohistochemical loss of the succinate dehydrogenase subunit B (SDHB) has recently been reported as a surrogate biomarker of malignancy in sporadic and familial pheocromocytomas and paragangliomas through the activation of hypoxia pathways. However, data on the prevalence and the clinical implications of SDHB immunoreactivity in ileal neuroendocrine tumors are still lacking. Thirty-one consecutive, advanced primary midgut neuroendocrine tumors and related lymph node or liver metastases from 24 males and seven females were immunohistochemically assessed for SDHB...
2012: Cancers
Christina Matadial, Jadelis Giquel, Ricardo Martinez-Ruiz
No abstract text is available yet for this article.
2013: JRSM Cardiovascular Disease
Daniella L Shmuel, Yonaira Cortes
OBJECTIVE: To review and summarize current information regarding the pathophysiology and clinical manifestations associated with anaphylaxis in dogs and cats. The etiology, diagnosis, treatment, and prognosis is discussed. ETIOLOGY: Anaphylaxis is a systemic, type I hypersensitivity reaction that often has fatal consequences. Many of the principal clinical manifestations involve organs where mast cell concentrations are highest: the skin, the lungs, and the gastrointestinal tract...
July 2013: Journal of Veterinary Emergency and Critical Care
Lorena Medina-Pulido, Míriam Molina-Arcas, Carles Justicia, Eduardo Soriano, Ferran Burgaya, Anna M Planas, Marçal Pastor-Anglada
Under several adverse conditions, such as hypoxia or ischaemia, extracellular levels of adenosine are elevated because of increased energy demands and ATP metabolism. Because extracellular adenosine affects metabolism through G-protein-coupled receptors, its regulation is of high adaptive importance. CNT2 (concentrative nucleoside transporter 2) may play physiological roles beyond nucleoside salvage in brain as it does in other tissues. Even though nucleoside transport in brain has mostly been seen as being of equilibrative-type, in the present study, we prove that the rat phaeochromocytoma cell line PC12 shows a concentrative adenosine transport of CNT2-type when cells are differentiated to a neuronal phenotype by treatment with NGF (nerve growth factor)...
September 15, 2013: Biochemical Journal
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