scholarly journals Von Hippel-Lindau Tumor; Radiographic Images

2017 ◽  
Vol 2 (1) ◽  
pp. 30
Author(s):  
Reza Bidaki ◽  
Azam Ghanei ◽  
Seyed Mehdi Hosseinizade ◽  
Mohammad Ebrahim Ghanei

The patient is a 34-year-old patient with abdominal pain, gross hematuria with anxiety and worries about it from 5 months ago. The physician requested renal computed tomography (CT) without and then with contrast for rule out of renal stone. However, he found multiple lesions in kidneys. The laboratory tests were normal except hematuria. He was a candidate for surgery. The pathologist reported clear red cell renal cell carcinoma. He was referred to a radiologist for staging. Von Hippel – Lindau (VHL) disease is an inherited and rare disease that is characterized by a variety of benign and malignant lesions (1). It preval ence is 1 in 31,000 -53,000 (2,3). Previous studies shown 59 – 63% of patients have renal cysts and 24 - 45 % renal cell carcinoma (4), and in 75 % of cases ,the lesions are bilateral (4, 5). Involvement of pancreas includes simple cysts (50 – 91%), serous m icrocystic adenomas (12%) and adenocarcinoma (7%) (2, 4).

2013 ◽  
Vol 3 (1) ◽  
pp. 32 ◽  
Author(s):  
Shannon Bradley ◽  
Nadine Dumas ◽  
Mark Ludman ◽  
Lori Wood

Background: von Hippel–Lindau (VHL) disease is an autosomaldominant condition characterized by the development of benignand malignant tumours, including cases of renal cell carcinoma(RCC). Early detection of RCC through routine surveillance canlead to decreased morbidity and mortality. Data on the numberof patients in Nova Scotia (NS) who have VHL disease, diseasemanifestations and the frequency and mode of the surveillancehave not previously been collected or reported. This project wasdesigned to obtain that information.Methods: The number and management of patients with VHL diseasewas determined by multiple sources: the Maritime MedicalGenetics Service, patient charts, and pathology, radiology and laboratorydata. The actual surveillance being performed was comparedwith that recommended in the literature.Results: Twenty-one patients from 11 families in NS were identified.Manifestations included cases of RCC (31.6%), central nervoussystem (CNS) hemangioblastoma (73.7%), retinal hemangioma(47.4%), renal cyst (47.4%) and pheochromocytoma (10.5%).Of the 6 patients with RCC, 4 had bilateral tumours, 2 requiredkidney transplants and 1 developed metastatic disease. Routinesurveillance was being done for the CNS in 62.5% of patients,retina in 47.4%, abdomen in 43.8% and urine catecholaminesin only 10.5%. Only 1 of the 6 patients who developed RCCwas undergoing routine abdominal imaging. Surveillance investigationswere ordered by a number of different specialists.Conclusion: Patients with VHL disease in NS have a number of manifestationsassociated with their disease, including RCC, in a similarfrequency to that reported in the literature. The surveillanceof these patients is suboptimal in frequency and coordination.von Hippel–Lindau disease is a complex condition that requiresa coordinated approach to care to ensure proper surveillance andtreatment. Our study highlights current deficiencies and offersan enormous opportunity for improvement.Généralités : La maladie de von Hippel-Lindau (VHL) est une maladieà transmission autosomique dominante caractérisée par la formationde tumeurs bénignes et malignes, dont l’hypernéphrome.Le dépistage précoce de l’hypernéphrome par des examens régulierspeut amener une réduction de la morbidité et de la mortalité. Onne sait pas combien de personnes sont atteintes de VHL enNouvelle-Écosse, quelles sont les manifestations de la maladie chezces patients et quels tests de dépistage sont effectués et à quellefréquence. Le projet décrit ici visait à obtenir ces renseignements.Méthodologie : Le nombre et la méthode de prise en charge despatients atteints de VHL ont été établis à l’aide de plusieurs sources :la Clinique de génétique médicale des Maritimes, des dossiers depatients, des rapports de pathologie et de radiologie et des analysesde laboratoire. Les méthodes de surveillance mises en placeont été comparées aux méthodes recommandées dans la littératuremédicale.Résultats : Vingt et un patients de 11 familles de Nouvelle-Écosseont été cernés. Les manifestations incluaient : hypernéphrome(31,6 %), hémangioblastomes siégeant au niveau du SNC (73,7 %),hémangiomes rétiniens (47,4 %), kystes rénaux (47,4 %) etphéochromocytomes (10,5 %). Sur les six patients porteurs d’unhypernéphrome, 4 avaient des tumeurs bilatérales, 2 ont eu besoind’une transplantation rénale et un patient a présenté des métastases.De tous les patients atteints de VHL, 62,5 % ont subi destests réguliers de dépistage au niveau du SNC, 47,4 %, au niveaude la rétine, 43,8 %, au niveau de l’abdomen, et seulement 10,5 %des patients ont subi des tests réguliers de dépistage des catécholaminesurinaires. Sur les 6 cas d’hypernéphrome, un seulementsubissait des épreuves régulières d’imagerie au niveau del’abdomen. Les tests de dépistage avaient été prescrits par différentsspécialistes.Conclusion : Les cas de VHL en Nouvelle-Écosse présentent un certainnombre de manifestations liées à cette maladie, dont l’hypernéphrome,à une fréquence proche de celle mentionnée dansla littérature. La fréquence et la coordination des épreuves dedépistage sont sous-optimales. La maladie de VHL est une affectioncomplexe nécessitant une bonne coordination des soinsafin d’assurer une surveillance et un traitement adéquats. Cetteétude montre les lacunes actuelles et pointe vers des améliorationssubstantielles.


Oncogene ◽  
2016 ◽  
Vol 36 (8) ◽  
pp. 1080-1089 ◽  
Author(s):  
J M Thompson ◽  
Q H Nguyen ◽  
M Singh ◽  
M W Pavesic ◽  
I Nesterenko ◽  
...  

Radiology ◽  
2020 ◽  
Vol 295 (3) ◽  
pp. E10-E10
Author(s):  
Faraz Farhadi ◽  
Moozhan Nikpanah ◽  
Anna K. Paschall ◽  
Ahmad Shafiei ◽  
Ashkan Tadayoni ◽  
...  

2020 ◽  
Vol 9 (9) ◽  
pp. 2740
Author(s):  
Virginia Albiñana ◽  
Eunate Gallardo-Vara ◽  
Isabel de Rojas-P ◽  
Lucia Recio-Poveda ◽  
Tania Aguado ◽  
...  

Von Hippel–Lindau (VHL), is a rare autosomal dominant inherited cancer in which the lack of VHL protein triggers the development of multisystemic tumors such us retinal hemangioblastomas (HB), CNS-HB, and clear cell renal cell carcinoma (ccRCC). ccRCC ranks third in terms of incidence and first in cause of death. Standard systemic therapies for VHL-ccRCC have shown limited response, with recurrent surgeries being the only effective treatment. Targeting of β2-adrenergic receptor (ADRB) has shown therapeutic antitumor benefits on VHL-retinal HB (clinical trial) and VHL-CNS HB (in vitro). Therefore, the in vitro and in vivo antitumor benefits of propranolol (ADRB-1,2 antagonist) and ICI-118,551 (ADRB-2 antagonist) on VHL−/− ccRCC primary cultures and 786-O tumor cell lines have been addressed. Propranolol and ICI-118,551 activated apoptosis inhibited gene and protein expression of HIF-2α, CAIX, and VEGF, and impaired partially the nuclear internalization of HIF-2α and NFĸB/p65. Moreover, propranolol and ICI-118,551 reduced tumor growth on two in vivo xenografts. Finally, ccRCC patients receiving propranolol as off-label treatment have shown a positive therapeutic response for two years on average. In summary, propranolol and ICI-118,551 have shown antitumor benefits in VHL-derived ccRCC, and since ccRCCs comprise 63% of the total RCCs, targeting ADRB2 becomes a promising drug for VHL and other non-VHL tumors.


2020 ◽  
pp. jclinpath-2020-206693
Author(s):  
Raviprakash Tumkur Sitaram ◽  
Maréne Landström ◽  
Göran Roos ◽  
Börje Ljungberg

Renal cell carcinoma (RCC) includes diverse tumour types characterised by various genetic abnormalities. The genetic changes, like mutations, deletions and epigenetic alterations, play a crucial role in the modification of signalling networks, tumour pathogenesis and prognosis. The most prevalent RCC type, clear cell RCC (ccRCC), is asymptomatic in the early stages and has a poorer prognosis compared with the papillary and the chromophobe types RCCs. Generally, ccRCC is refractory to chemotherapy and radiation therapy. Loss of von Hippel-Lindau (VHL) gene and upregulation of hypoxia-inducible factors (HIF), the signature of most sporadic ccRCC, promote multiple growth factors. Hence, VHL/HIF and a variety of pathways, including phosphatase and TEnsin homolog on chromosome 10/phosphatidylinositol-3-kinase (PI3K)/AKT, are closely connected and contribute to the ontogeny of ccRCC. In the recent decade, multiple targeting agents have been developed based on blocking major signalling pathways directly or indirectly involved in ccRCC tumour progression, metastasis, angiogenesis and survival. However, most of these drugs have limitations; either metastatic ccRCC develops resistance to these agents, or despite blocking receptors, tumour cells use alternate signalling pathways. This review compiles the state of knowledge about the PI3K/AKT signalling pathway confined to ccRCC and its cross-talks with VHL/HIF pathway.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 4584-4584
Author(s):  
Lambros Stamatakis ◽  
Brian Shuch ◽  
Eric A. Singer ◽  
Jeffrey Nix ◽  
Hong Truong ◽  
...  

4584 Background: Germline mutations in the von Hippel Lindau (VHL) gene are associated with the development of bilateral multifocal clear-cell renal cell carcinoma (RCC). VHL patients with localized disease are surgically managed, with nephron sparing resection recommended once tumors reach 3 cm. Patients typically undergo multiple surgeries with significant cumulative morbidity. In this phase 2 trial of vandetanib, a dual VEGFR2/EGFR inhibitor, a systemic approach to these tumors was explored. Methods: Patients with VHL-associated RCC were treated with 300 mg vandetanib daily until disease progression or unacceptable toxicity. Cross sectional imaging was performed at baseline and every 12 weeks. The primary endpoint was overall renal tumor response assessed by RECIST. Results: A total of 34 subjects were enrolled, with a mean age of 47 years (range 28 – 72). The median number of targeted lesions per subject was 2 (range 1 – 6) and the mean tumor diameter was 2.3 cm (range 1.2 – 4.0). Twenty-seven (80%) subjects had baseline imaging and at least one follow-up study to allow response evaluation. Median time on study was 6.1 months (range 1.0 – 23.3). Thirteen (38%) subjects demonstrated overall reduction in tumor burden with a median reduction of 6% (range 4-54%). One (3%) subject had a PR by RECIST and 26 (77%) had stable disease as their best response. Eleven (32%) subjects were taken off study due to growth of at least one lesion that met criteria for surgical resection or disease progression. Nine (27%) subjects required dose reductions due to toxicity. Although the majority of adverse events encountered on trial were grade 2 or less, 9 (27%) subjects were taken off trial due to drug-related toxicities and 9 (27%) withdrew due to intolerable side effects. Rash (71%), and QTc prolongation (41%) were the most common adverse events noted. Conclusions: In the largest phase II study of a systemic agent for VHL-related RCC, vandetanib demonstrated anti-tumor activity. Despite a reasonable safety profile, poor tolerability necessitated drug withdrawal in a significant proportion of patients. Newer agents that selectively target the VEGF receptors may offer a more tolerable alternative and might optimize clinical benefits in this population. Clinical trial information: NCT0056695.


2016 ◽  
Vol 14 (3) ◽  
pp. 2785-2790 ◽  
Author(s):  
Ziyi Zhao ◽  
Changjin Chen ◽  
Junzhi Lin ◽  
Wentong Zeng ◽  
Juan Zhao ◽  
...  

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