vascular origin
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Author(s):  
Mariana da Silva Leal ◽  
Carolina Amado ◽  
Bárbara Paracana ◽  
Gisela Gonçalves ◽  
Mariana Sousa

Masson's tumour, also known as intravascular papillary endothelial hyperplasia, is a rare non-neoplastic lesion of vascular origin, caused by an excessive reactive proliferation of endothelial cells in normal blood vessels or vascular malformations. It can affect any part of the body, presenting most frequently in the vessels of the head, neck and upper extremities. The authors describe the case of a 76-year-old female patient presenting an anterior cervical mass, measuring 2×2 cm, which was mobile, tender and slightly painful with no alteration of the overlying skin. Complementary study with ultrasound and computed tomography was inconclusive. Total excision of the lesion was performed with histology compatible with intravascular papillary endothelial hyperplasia.


Surgeries ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 1-3
Author(s):  
Michela Solinas ◽  
Valentina Conti ◽  
Fabrizio Grignani

Diagnostic and surgical difficulties were presented in case of a giant mass, found incidentally, in a 65-year-old healthy and asymptomatic man. The patient underwent different diagnostic procedures. Surgery was the treatment of choice. A combination of both open technique and videothoracoscopy to reduce the risk of seeding, pending a certain diagnosis, was resolutive. The postoperative period and recovery time were uneventful. The patient was discharged on the 5th postoperative day. The histological diagnosis was benign schwannoma. There are different aspects to think about, based also on the experience of each center. According to our experience, this is a rare situation; the combined surgical techniques to control the vascular risk and tissue infiltration of the mass seemed to us the approach of choice.


2021 ◽  
Vol 5 (4) ◽  
pp. 795-805
Author(s):  
Gözdenur ÇAKAR ◽  
Işıl SARAÇ SİVRİKAYA ◽  
Ersin KARAKAYA ◽  
Abdullah GÜLLER

Fusarium spp is one of the major phytopathogenic microfungus strains causing severe losses in many economically cultivated crops. The soil-borne pathogen Fusarium solani has historically been considered a serious agent across the globe, causing vascular wilt and root rot in agroeconomic crops and eventually leading to plant death. Three different concentrations (1 µl, 2 µl, and 4 µl) of essential oils (EO) extracted from lavender (Lavandula officinalis L.) and summer savory (Satureja hortensis L.) plants were mixed separately with PDA medium, and their antifungal effect against F. solani was investigated in vitro. When the results of the experiment were evaluated statistically, it was determined that the increasing concentrations of summer savory essential oil repressed the mycelial growth of the fungus, while lavender oil did not have any positive or negative effects. The inhibition activity of summer savory EO on F. solani was calculated as 43, 53, and 90% at the concentrations of 1, 2, and 4 µl, respectively. In this study, it was found that summer savory EO, even at a minimum dose, had a negative effect on agriculturally important wilt agent. In this context, it can be asserted that summer savory EO is a promising natural substance for the development of various fungicide solutions to prevent fungal diseases caused by vascular origin.


Pneumologia ◽  
2021 ◽  
Vol 69 (4) ◽  
pp. 248-255
Author(s):  
Ana Constantin ◽  
Anca Macri ◽  
Florin Dumitru Mihălțan

Abstract We present the case of a 44-year-old patient, with a history of lymphatic tuberculosis, diagnosed with a pleural effusion associated with pulmonary consolidations. Pleural effusions are frequent in the general population, presenting an incidence of 3–4 cases/1000 people. The etiological diagnosis can be difficult, as they can be secondary to a variety of diseases. Numerous extrapulmonary disorders can explain fluid accumulations in the pleural space with elevated protein level (exudates). However, more frequently they are the result of pulmonary diseases – inflammatory, infectious or neoplastic. The case entailed a differential diagnosis between pulmonary and pleural tuberculosis and neoplastic diseases. Despite receiving antituberculous treatment, the patient’s initial symptoms worsen, the patient starts presenting new signs and symptoms, and the fluid’s characteristics change – expression of an unfavourable evolution. Establishing the diagnosis proved to be difficult as invasive procedures were necessary. We diagnosed an extremely rare tumour, of vascular origin as the cause of the pleural effusion. Epithelioid haemangioendothelioma (EHE) presents an incidence of 1 in 1 million people. In conclusion, when treating a patient for pleural effusion, the lack of improvement entails reconsidering the initial diagnosis and performing more extensive tests.


Author(s):  
Isabelle Brooks

The World Health Organization defines a stroke as ‘rapidly developing clinical signs of focal (or global) disturbance of cerebral function, with symptoms lasting 24 hours or longer or leading to death, with no apparent cause other than vascular origin’. If the symptoms last less than 24 hours, typically less than 2 hours, then this is classified as a transient ischaemic attack. ‘Brain attack’ is a term that is increasingly used, as the rapid nature of treatment means the differentiating criterion of symptoms lasting at least 24 hours, is often not met before initiation of treatment.


2021 ◽  
pp. 159101992110568
Author(s):  
Yang Cui ◽  
Wenzhao Liang ◽  
Mengxue Li ◽  
Zhongyu Zhao ◽  
Xinzhao Jiang ◽  
...  

Background and Purpose Cochlear vascular micro-thrombosis has been hypothesized as one of the pathogenic mechanisms for sudden sensorineural hearing loss (SSNHL) refractory to regular management. This study aimed to evaluate the feasibility and safety of intra-arterial pulsed-injection urokinase (IAPU) as a salvage therapy for SSNHL after the failure of conventional therapy. Methods We retrospectively reviewed our patient database to identify refractory SSNHL patients between November 2017 and July 2020. Study outcomes before and after the IAPU therapy were compared between IAPU and conventional therapy groups. Results Sixty-seven moderate-profound SSNHL patients (29 in IAUP group, 38 in control group) were included in this study. Compared to the control group, patients in the IAPU group showed more significant improvement in pure tone average (PTA) (34.2 ± 23.5 vs. 10.7 ± 13.1, p < 0.001) and degree of hearing recovery (total: 20.7% vs. 5.3%, partial: 24.1% vs. 10.5%, mild: 27.6% vs. 13.2% and non: 27.6% vs. 71.1%) 2 weeks after admission. In the IAPU group, a significant improvement of PTA (86.6 ± 11.5 vs. 54.6 ± 20.1 dB, p < 0.005) was observed on the first day after IAPU treatment. Conclusion In carefully selected SSNHL cases with a highly suspected vascular origin, IAPU is a safe and effective therapy when conventional treatments have failed. Despite the encouraging findings of our work, large studies are needed to better investigate the strengths and limitations of this salvage therapy.


2021 ◽  
Vol 21 (1) ◽  
pp. 1-12
Author(s):  
Treefa Salih Hasan ◽  

Background: Vertigo is a symptom that neurologists and otologists are confronted with. Magnetic resonance image (MRI) is used for imaging. Objective: To determine the diagnostic yield of MRI in patients with vertigo and to Identify the most common causes. Patients and Methods: This observational study involved 110 vertigo complaining patients attending the MRI unit of Rizgary teaching hospital examined by 0.2 Tesla MRI between June 2007 and September 2008.Collected variables divided into Group 1 (normal MRI) and Group 2 (abnormal MRI) analysed and compared. Results: Group 1= (70%) and Group 2=(30%), abnormal MRI findings in male patients was (59.6%), in female (40.4%,) the commonest abnormalities were cerebellopontine angle (CPA) space occupying lesions (SOL) (9.2%), cerebellar SOL (7.4%), 4th ventricle SOL (7.4%) and deep white matter ischemia (7.4%), most of patients with vascular problems were more than 50 years. In (35.4%) of patients, vertigo was less than one month duration, (50%) of which had abnormal MRI findings. Out of seven patients with normal MRI, 5 patients showed vascular lesion on magnetic resonance angiography (MRA). Conclusion: MRI remains important diagnostic tool for evaluation of vertigo and MRA is necessary when vascular origin is suspected.


2021 ◽  
Vol 8 ◽  
Author(s):  
Matthew R. Cook ◽  
Joshua N. Lorbach ◽  
Mary E. White ◽  
Geoffrey J. Zann ◽  
Rachel E. Cianciolo ◽  
...  

Background: Angiosarcomas are a broad category of vascular origin neoplasms that are poorly characterized in veterinary species. Lymphangiosarcoma (LAS) is an uncommon type of angiosarcoma reported in humans and canines arising from lymphatic endothelium. LAS can be differentiated from other angiosarcomas in dogs based on expression of Prospero-related homeobox gene-1 (PROX-1) or lymphatic vessel endothelial receptor-1 (LYVE-1). Composite hemangioendothelioma (CHE) is a rare angiosarcoma subtype described in people and characterized by a variable biologic behavior and infrequent metastasis. This variant of angiosarcoma histologically combines features of retiform hemangioendothelioma and epithelioid hemangioendothelioma. Information regarding the cytologic and histopathologic appearance and clinical course of dogs with vascular tumors that exhibit features of CHE are unknown. Here, we report a case of pleomorphic LAS with features of CHE arising in a dog and treated with surgery and adjuvant chemotherapy.Case presentation: A 10-year-old intact male Labrador retriever presented with an approximately 6-cm-diameter cutaneous mass caudal to the left elbow that was progressively growing over 1.5 years. On physical examination, palpable extensions were identified coursing proximally over the triceps with concurrent loco-regional peripheral lymphadenopathy. Fine needle aspirates (FNA) and cytologic assessment of the cutaneous mass, left prescapular, and accessory axillary lymph nodes reported that this appeared to be a metastatic epithelial neoplasm, although a mixed carcinoma or collision tumor could not be excluded. An incisional biopsy of the mass was submitted for histopathology and was consistent with a well-differentiated angiosarcoma with features of CHE. The neoplasm expressed vimentin, CD31, von Willebrand factor (vWf), and PROX-1, supporting the diagnosis of LAS. Complete staging was performed, and no additional metastatic lesions were identified. Left forelimb amputation and lymph node removal were performed. Based on the diagnosis of metastatic LAS, doxorubicin chemotherapy was administered. 7 months post-amputation, the tumor recurred at the amputation site without evidence of metastatic disease.Conclusion: This report describes a malignant, locally aggressive lymphatic origin vascular tumor in a dog, with features consistent with descriptions of CHE in humans. Cytologic features in this case were discordant with its true mesenchymal etiology, obfuscating diagnosis. The morphologic features of the mesenchymal neoplastic population and immunohistochemistry (IHC) labeling ultimately supported a diagnosis of pleomorphic LAS with features of CHE.


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