Primary Hepatic Vascular Neoplasms and Hematologic Neoplasms Affecting Liver Vessels

2021 ◽  
pp. 285-310
Author(s):  
Maxime Ronot ◽  
Dominique Cazals-Hatem
1993 ◽  
Vol 67 (1) ◽  
pp. 10-14 ◽  
Author(s):  
RA Nagourney ◽  
SS Evans ◽  
JC Messenger ◽  
YZ Su ◽  
LM Weisenthal

2008 ◽  
Vol 132 (5) ◽  
pp. 829-837
Author(s):  
Andy N. D. Nguyen ◽  
Jitakshi De ◽  
Jacqueline Nguyen ◽  
Anthony Padula ◽  
Zhenhong Qu

Abstract Context.—In the diagnosis of lymphomas and leukemias, flow cytometry has been considered an essential addition to morphology and immunohistochemistry. The interpretation of immunophenotyping results by flow cytometry involves pattern recognition of different hematologic neoplasms that may have similar immunologic marker profiles. An important factor that creates difficulty in the interpretation process is the lack of consistency in marker expression for a particular neoplasm. For this reason, a definitive diagnostic pattern is usually not available for each specific neoplasm. Consequently, there is a need for decision support tools to assist pathology trainees in learning flow cytometric diagnosis of leukemia and lymphoma. Objective.—Development of a Web-enabled relational database integrated with decision-making tools for teaching flow cytometric diagnosis of hematologic neoplasms. Design.—This database has a knowledge base containing patterns of 44 markers for 37 hematologic neoplasms. We have obtained immunophenotyping data published in the scientific literature and incorporated them into a mathematical algorithm that is integrated to the database for differential diagnostic purposes. The algorithm takes into account the incidence of positive and negative expression of each marker for each disorder. Results.—Validation of this algorithm was performed using 92 clinical cases accumulated from 2 different medical centers. The database also incorporates the latest World Health Organization classification for hematologic neoplasms. Conclusions.—The algorithm developed in this database shows significant improvement in diagnostic accuracy over our previous database prototype. This Web-based database is proposed to be a useful public resource for teaching pathology trainees flow cytometric diagnosis.


Urology ◽  
1984 ◽  
Vol 23 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Barbara A. Chaitin ◽  
John T. Manning ◽  
Nelson G. Ordóñez

Cureus ◽  
2021 ◽  
Author(s):  
Jose C Alvarez-Payares ◽  
Angel Molina ◽  
Simon Gallo ◽  
Julian Ramirez ◽  
Juan Hernandez ◽  
...  

2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Raquel Lot ◽  
Caroline Rosa ◽  
Camila Freitas ◽  
Gracinda Adnet ◽  
Luisa Costa ◽  
...  

Subglottic hemagioma is a rare cause of stridor, but it is one of the most common vascular neoplasms of the airways in childhood. If the treatment is not promptly instituted, it becomes a life-threatening condition. The diagnosis should be suspected when infants outside the age range for acute laryngitis present with stridor associated with severe respiratory effort, without viral prodromes, with a condition that is not responsive to initial therapeutic measures considering the main diagnostic hypothesis. Infantile hemangiomas begin to proliferate during the first year of life (between the 1st and 2nd month of life). Involution usually occurs between 6 months and 12 months of life (most involution until 4 years). The case is a 5-month-old female infant, with sudden stridor associated with respiratory distress without viral prodromes or fever, with little response to inhaled short-acting beta-agonist, inhaled adrenaline, as well as corticosteroids inhalation/parenteral. Bronchoscopy showed a bulging of the submucosa to the right of the subglottis with slight vascularization, suggestive of subglottic hemangioma. Treatment with propranolol was initiated orally with the aim of regressing the hemangioma and after clinical stability, the infant was discharged with outpatient follow-up.


Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 34-35
Author(s):  
Angelica D'Aiello ◽  
Sumaira Zareef ◽  
Kith Pradhan ◽  
Amanda Lombardo ◽  
Fariha Khatun ◽  
...  

Introduction: We sought to compare outcomes among patients with hematologic neoplasms diagnosed with COVID-19 infection in a multiethnic urban academic medical center. Methods: A retrospective analysis of patients with hematologic neoplasms diagnosed with COVID-19 from March 17th to June 8th2020 was conducted. Subjects included were censored at last point of contact. Variables collected included age, gender, race/ethnicity, hematologic diagnosis, cancer treatment status, baseline and follow-up COVID-19 testing, neutrophil count, and lymphocyte count at time of diagnosis. Associations between hematologic diagnosis, cancer treatment status, age, gender, race/ethnicity, neutrophil-to-lymphocyte ratio (NLR), and overall survival (OS) were assessed using the Kaplan-Meier method with logrank test. Results: A total of 102 subjects with hematologic neoplasms and COVID-19 infection treated in Montefiore Health system were identified (Table 1). Thirty-nine (38%) subjects were undergoing active treatment, including 17 (16%) receiving conventional chemotherapy agents, 12 (12%) targeted therapy, and 10 (10%) combination therapy. Of those subjects, twenty (50%) experienced delay or discontinuation of treatment due to COVID-19 infection. Four subjects (4%) showed persistent infection by PCR at median duration of 25.1 days after initial diagnosis. Ten subjects (9.8%) showed clearance of the virus by PCR with median time-to-clearance of 51.8 days. Of 9 subjects with serologic testing, 8 tested positive for COVID-19 IgG antibody at median time of 62 days after initial COVID-19 diagnosis. Forty-seven (47%) subjects expired as a result of COVID-19 disease at the time of analysis. Disease type, treatment status, race/ethnicity, age, and gender showed no significant association with mortality. Patients older than 70 had worse outcomes than the younger population (p = 0.0082). Median neutrophil and lymphocyte count at time of diagnosis was 4500 and 900, respectively. NLR greater than 9 was associated with worse survival when compared to NLR less than 9 (p=0.0067). Conclusions: COVID-19 infection has adverse effects on patients with hematological neoplasms. Subjects older than 70 years had a significantly worse prognosis. Notably, subjects actively being treated with chemotherapy did not have worse outcomes than those not being treated in our cohort, supporting the notion than active COVID-19 infection per se should not result in treatment delays. In addition, high NLR correlates with worsened survival, suggesting that this could be a potential prognostic factor for COVID-19 mortality in the hematologic neoplasms population. Disclosures Steidl: Stelexis Therapeutics: Consultancy, Current equity holder in private company, Membership on an entity's Board of Directors or advisory committees; Bayer Healthcare: Research Funding; Pieris Pharmaceuticals: Consultancy; Aileron Therapeutics: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding. Verma:stelexis: Current equity holder in private company; BMS: Consultancy, Research Funding; Medpacto: Research Funding; Janssen: Research Funding; acceleron: Consultancy, Honoraria.


Biology ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1160
Author(s):  
Kasey J. McCollum ◽  
Rami N. Al-Rohil

Neoplasms of uncertain biological behavior present physicians with a genuine conundrum in practice. Cutaneous vascular neoplasms within this category are exceedingly rare, possessing significant gaps and uncertainty in many facets of clinical practice. Firstly, lesions were selected for review based on their categorization as indeterminate behavior, indicating the potential for local recurrence and rarely metastasize. After identification of the target lesions, a comprehensive review of the literature using national databases produced several landmark studies and case series regarding these neoplasms. Limiting the review to only cutaneous limited tumors narrowed the pool of studies; however, quite a large sum of papers remained. Examination of each paper yielded beneficial results on diagnosing, effective treatments, follow-up findings, and prognosis for each indeterminate lesion discussed. Overall, the literature search combined the molecular, histologic, immunohistochemical, surgical strategies to develop an up-to-date and comprehensive framework to guide physicians when encountering such lesions. The tumors reviewed include: kaposiform hemangioendothelioma, endovascular papillary angioendothelioma, pseudomyogenic hemangioendothelioma, retiform hemangioendothelioma, epithelioid hemangioendothelioma, and composite hemangioendothelioma.


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