Sarcomatous Meningioma: Diagnostic Pitfalls and the Utility of Molecular Testing

2021 ◽  
Author(s):  
Calixto-Hope G Lucas ◽  
Patrick Devine ◽  
David A Solomon ◽  
Caterina Giannini ◽  
Guido Reifenberger ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Clinical Course ◽  
Molecular Signature ◽  
Molecular Testing ◽  
Primary Sarcoma ◽  
Gene Recognition ◽  
Nf2 Gene ◽  
Radiation Induced ◽  
Aggressive Clinical Course ◽  
Diagnostic Pitfalls

Abstract Anaplastic meningiomas can have a sarcomatous appearance on histology but true sarcomatous (metaplastic) differentiation is rare. These tumors follow an aggressive clinical course with recurrence and poor clinical outcomes. Due to significant overlap in morphology and immunohistochemical profiles, distinguishing between sarcomatous transformation of a meningioma and a true sarcoma can be challenging. Here, we outline potential diagnostic pitfalls and the utility of ancillary molecular testing in 3 patients diagnosed with sarcomatous meningiomas. We report loss of typical meningothelial markers in sarcomatous meningiomas. Ancillary molecular testing can support the diagnosis of sarcomatous meningioma when a molecular signature consistent with meningioma is seen, such as inactivation of the NF2 gene. Recognition of this rare transformation in meningioma can prevent a misdiagnosis of a primary sarcoma, whether sporadic or radiation-induced from prior treatment of a more classic meningioma.

Mutations of CARD15 gene in Crohn's disease patients are more frequent in ASCA-positive with more aggressive clinical course. An Ig-IBD study

2003 ◽  
Vol 124 (4) ◽  
pp. A376
Author(s):  
Vito Annese ◽  
Arnaldo Andreoli ◽  
Bollani Serafina ◽  
Fabiana Castiglione ◽  
Mario Cottone ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Clinical Course ◽  
Card15 Gene ◽  
Aggressive Clinical Course

scholarly journals Nested variant of urothelial carcinoma of the urinary bladder

Rare Tumors ◽  
2011 ◽  
Vol 3 (4) ◽  
pp. 132-134 ◽  
Author(s):  
Tadashi Terada
Keyword(s):  
Urothelial Carcinoma ◽  
Lamina Propria ◽  
Bladder Tumor ◽  
Clinical Course ◽  
Carcinoma Cells ◽  
Ki 67 ◽  
Atypical Cells ◽  
Nested Variant ◽  
Aggressive Clinical Course ◽  
Nephrogenic Metaplasia

The nested variant of urothelial carcinoma (NVUC) is characterized by the presence of benign-appearing urothelial carcinoma cells in the lamina propria, sparing the surface urothelial involvement. NVUC shows aggressive clinical course despite of benign-looking histology. Herein reported are two cases of NVUC. One is 80-year-old woman, and another is 78-year-old man. In both cases, atypical cells forming nests and tubules were seen in the lamina propria without surface urothelial involvement. One case resembled nephrogenic metaplasia and another proliferated Brunn's nest or inverted papilloma. Immunohistochemically, both cases showed positive p53 and high Ki67 labeling, suggesting that both cases are malignant. Immunohistochemically, one case was characterized by positive cytokeratins, EMA, p53, Ki-67 (labeling=15%), α-methylacyl CoA racemase, CA19-9, and MUC1, and another case by positive cytokeratins, EMA, p63, p53, Ki-67 (lebeling=30%), CD10, CEA, and MUC1. Cyto keratin immunoprofiles were described and other antigens’ expressions were shown. The patients are now free of tumor 6 and 15 months after the resection of the bladder tumor.

Follicular Lymphoma With a Burkitt Translocation—Predictor of an Aggressive Clinical Course: A Case Report and Review of the Literature

2004 ◽  
Vol 128 (2) ◽  
pp. 210-213 ◽  
Author(s):  
Peter M. Voorhees ◽  
Kathryn A. Carder ◽  
Scott V. Smith ◽  
Lanier H. Ayscue ◽  
Kathleen W. Rao ◽  
...  
Keyword(s):  
Case Report ◽  
Follicular Lymphoma ◽  
Clinical Course ◽  
Lymphoblastic Leukemia ◽  
Initial Diagnosis ◽  
Indolent Lymphoma ◽  
Review Of The Literature ◽  
Cell Type ◽  
Aberrant Expression ◽  
Aggressive Clinical Course

Abstract Follicular lymphoma is an indolent lymphoma characterized by the (14;18) translocation, which leads to aberrant expression of Bcl-2. Translocations involving 8q24 are most commonly associated with Burkitt lymphoma and result in c-Myc overexpression. We report a case of follicular lymphoma of predominant small cleaved-cell type (grade 1) associated with both a t(14;18)(q32;q21) and a t(8;22)(q24;q11). The 8q24 translocation predicted an aggressive clinical course, as the lymphoma transformed into acute lymphoblastic leukemia within a year of initial diagnosis. Routine cytogenetic analysis is recommended at initial diagnosis of follicular lymphoma to better identify abnormalities that may predict prognosis and influence therapy.

scholarly journals Plasma Derived Exosomal Biomarkers of Exposure to Ionizing Radiation in Nonhuman Primates

2018 ◽  
Vol 19 (11) ◽  
pp. 3427 ◽  
Author(s):  
Amrita Cheema ◽  
Charles Hinzman ◽  
Khyati Mehta ◽  
Briana Hanlon ◽  
Melissa Garcia ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Nonhuman Primates ◽  
Rhesus Macaques ◽  
Ultra Performance Liquid Chromatography ◽  
Molecular Signature ◽  
Detection And Identification ◽  
Molecular Events ◽  
Plasma Metabolome ◽  
Radiation Induced ◽  
Hydroxyl Fatty Acids

Exposure to ionizing radiation induces a cascade of molecular events that ultimately impact endogenous metabolism. Qualitative and quantitative characterization of metabolomic profiles is a pragmatic approach to studying the risks of radiation exposure since it provides a phenotypic readout. Studies were conducted in irradiated nonhuman primates (NHP) to investigate metabolic changes in plasma and plasma-derived exosomes. Specifically, rhesus macaques (Macaca mulatta) were exposed to cobalt-60 gamma-radiation and plasma samples were collected prior to and after exposure to 5.8 Gy or 6.5 Gy radiation. Exosomes were isolated using ultracentrifugation and analyzed by untargeted profiling via ultra-performance liquid chromatography mass spectrometry (UPLC-MS) based metabolomic and lipidomic analyses, with the goal of identifying a molecular signature of irradiation. The enrichment of an exosomal fraction was confirmed using quantitative ELISA. Plasma profiling showed markers of dyslipidemia, inflammation and oxidative stress post-irradiation. Exosomal profiling, on the other hand, enabled detection and identification of low abundance metabolites that comprise exosomal cargo which would otherwise get obscured with plasma profiling. We discovered enrichment of different classes of metabolites including N-acyl-amino acids, Fatty Acid ester of Hydroxyl Fatty Acids (FAHFA’s), glycolipids and triglycerides as compared to the plasma metabolome composition with implications in mediation of systemic response to radiation induced stress signaling.

scholarly journals Deep learning identifies antigenic determinants of severe SARS-CoV-2 infection within T-cell repertoires

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
John-William Sidhom ◽  
Alexander S. Baras
Keyword(s):  
Deep Learning ◽  
T Cell ◽  
Clinical Outcomes ◽  
Clinical Course ◽  
Severity Of Illness ◽  
Severe Infection ◽  
Cell Receptor ◽  
Asymptomatic Infection ◽  
Antigenic Determinants ◽  
Repertoire Sequencing

AbstractSARS-CoV-2 infection is characterized by a highly variable clinical course with patients experiencing asymptomatic infection all the way to requiring critical care support. This variation in clinical course has led physicians and scientists to study factors that may predispose certain individuals to more severe clinical presentations in hopes of either identifying these individuals early in their illness or improving their medical management. We sought to understand immunogenomic differences that may result in varied clinical outcomes through analysis of T-cell receptor sequencing (TCR-Seq) data in the open access ImmuneCODE database. We identified two cohorts within the database that had clinical outcomes data reflecting severity of illness and utilized DeepTCR, a multiple-instance deep learning repertoire classifier, to predict patients with severe SARS-CoV-2 infection from their repertoire sequencing. We demonstrate that patients with severe infection have repertoires with higher T-cell responses associated with SARS-CoV-2 epitopes and identify the epitopes that result in these responses. Our results provide evidence that the highly variable clinical course seen in SARS-CoV-2 infection is associated to certain antigen-specific responses.

scholarly journals Atypical clinical course of cerebral arachnoid cyst

2015 ◽  
Vol 17 (2) ◽  
pp. 77
Author(s):  
A. L. Krivoshapkin ◽  
A. V. Gorbatykh ◽  
A. S. Gaytan ◽  
P. A. Semin ◽  
V. V. Kobozev
Keyword(s):  
Surgical Treatment ◽  
Intracranial Pressure ◽  
Female Patient ◽  
Arachnoid Cyst ◽  
Clinical Course ◽  
Operative Management ◽  
Middle Cranial Fossa ◽  
Raised Intracranial Pressure ◽  
Cranial Fossa ◽  
Aggressive Clinical Course

In this publication we report a case of atypical, aggressive clinical course of arachnoid cyst in 19-year old female patient, which caused raised intracranial pressure and disruption of bony structures of the middle cranial fossa and the orbit. It also describes peculiarities of operative management and results of surgical treatment of this patient.

scholarly journals T-Cell Prolymphocytic Leukemia: A Rare Disease With an Aggressive Clinical Course

2018 ◽  
Vol 150 (suppl_1) ◽  
pp. S105-S106
Author(s):  
Lin Zhang ◽  
Daphne Massey ◽  
Vanya Jaitly ◽  
Xiaohong Wang
Keyword(s):  
T Cell ◽  
Rare Disease ◽  
Clinical Course ◽  
Prolymphocytic Leukemia ◽  
Aggressive Clinical Course

Lupus Eritematosus Sistemik pada Pria

2021 ◽  
Vol 3 (2) ◽  
pp. 37-42
Author(s):  
Harry Andrean ◽  
Raveinal Raveinal
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Clinical Course ◽  
Multiple Organ ◽  
Systemic Lupus ◽  
Malar Rash ◽  
Mouth Ulcer ◽  
Pulse Dose ◽  
Aggressive Clinical Course ◽  
Complex Autoimmune Disease

Introduction: Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by presence of nucleus autoantibody and affected multiple organ. Systemic lupus erythematosus is more common in women than men with ratio 2:1 to 15:1. Men with SLE often have a more aggressive clinical course, lead to a poorer prognosis compared with women with SLE. Case Report: A man, 29 years old came to hospital with main complain joint pain increased since 1 week ago, accompanied with red spot on face, trunk, hands, foot, and back, hair loss, swollen leg, mouth ulcer, and fatique. Malar rash and discoid rash were identified from physical examination. From laboratorium, ANA profile was positive for RNP/Sm, Sm, dsDNA, and histone. Skin biopsy showed a lupus discoid. Conclusion: The patient was treated with pulse-dose methylprednisolone for 3 days and showed a good response clinically.

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