Borderline conditions in dermato-oncology

2021 ◽  
pp. 49-59
Author(s):  
S. P. Seleznev ◽  
O. B. Tamrazova ◽  
V. Yu. Sergeev ◽  
V. G. Nikitaev ◽  
A. N. Pronichev
Keyword(s):  
Squamous Cell Carcinoma ◽  
Clinical Presentation ◽  
Digital Processing ◽  
Review Article ◽  
Diagnostic Systems ◽  
Stepwise Approach ◽  
Cascade Models ◽  
Precancerous State

This review article provides an overview of the etiology, pathogenesis, clinical presentation, diagnosis, and treatment methods for actinic keratosis, keratoacanthoma, and Bowen’s disease. The provoking factors are described, where the main importance is attached to insolation, previous immunosuppression and immunodeficiency and trauma. The pathogenesis of these diseases is described in the form of cascade models. Various clinical forms and their main dermatoscopic features, suitable for digital processing in automated diagnostic systems, are presented. A stepwise approach to the treatment of these nosologies is described, and a preliminary prognosis is assessed based on the duration of progression and the likelihood of transformation into squamous cell carcinoma. Given the fact that dermato-oncologists have not yet come to a consensus on the classification of the described diseases, in this article they are considered as a borderline, thereby demonstrating a fine line of transition from a precancerous state to cancer in situ.

Clinical Presentation of Minimally Invasive and In Situ Squamous Cell Carcinoma of the Anus in Homosexual Men

1995 ◽  
Vol 21 (3) ◽  
pp. 603-607 ◽  
Author(s):  
R. L. Forti ◽  
S. J. Medwell ◽  
D. M. Aboulafia ◽  
C. M. Surawicz ◽  
D. H. Spach
Keyword(s):  
Squamous Cell Carcinoma ◽  
Minimally Invasive ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Clinical Presentation ◽  
Homosexual Men

Squamous Cell Carcinoma In Situ Overlying Merkel Cell Carcinoma

2016 ◽  
Vol 20 (6) ◽  
pp. 563-566 ◽  
Author(s):  
Maria A. McGowan ◽  
Matthew F. Helm ◽  
Michelle B. Tarbox
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Merkel Cell Carcinoma ◽  
Squamous Cell ◽  
Clinical Presentation ◽  
Merkel Cell ◽  
The Past ◽  
Exponential Increase ◽  
Worse Prognosis

Background:Merkel cell carcinoma (MCC) is a rare and aggressive cutaneous neoplasm that has exhibited an exponential increase in incidence in the past 3 decades. Combined MCC and cutaneous squamous cell carcinoma (SCC/MCC) is an uncommon variant of MCC that exhibits worse prognosis than pure MCC.Objective:To describe the clinical presentation, dermoscopy, and histology of an unusual subtype of combined SCC/MCC.Methods and Results:A 73-year-old white woman presented with an ulcerated and violaceous 10-mm plaque on her right jawline that had been present for 2 to 3 months. On dermoscopy, the lesion was predominantly milky pink to red with peripheral crusting and large-caliber polymorphous vessels. Histology revealed SCC in situ above and adjacent to MCC. The tumor was excised with clear margins, and sentinel lymph node scintography was negative for nodal involvement.

Comparison of Alcohol Use Disorders in DSM and ICD

2020 ◽  
Vol 66 (3) ◽  
pp. 143-153
Author(s):  
Jessica W. M. Wong ◽  
Friedrich M. Wurst ◽  
Ulrich W. Preuss
Keyword(s):  
Alcohol Use Disorders ◽  
International Classification Of Diseases ◽  
Clinical Use ◽  
Diagnostic Systems ◽  
Statistical Manual ◽  
Diagnostic And Statistical Manual ◽  
Dsm 5 ◽  
Classification Of Diseases ◽  
Historical Developments

Abstract. Introduction: With advances in medicine, our understanding of diseases has deepened and diagnostic criteria have evolved. Currently, the most frequently used diagnostic systems are the ICD (International Classification of Diseases) and the DSM (Diagnostic and Statistical Manual of Mental Disorders) to diagnose alcohol-related disorders. Results: In this narrative review, we follow the historical developments in ICD and DSM with their corresponding milestones reflecting the scientific research and medical considerations of their time. The current diagnostic concepts of DSM-5 and ICD-11 and their development are presented. Lastly, we compare these two diagnostic systems and evaluate their practicability in clinical use.

Covid-19: A review of its clinical features, effects on gastrointestinal system and possibility of faecal transmission

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 623-627
Author(s):  
Kanishk K Adhit ◽  
Anjankar Ashish P ◽  
Siddhaarth K
Keyword(s):  
Clinical Presentation ◽  
Throat Swab ◽  
Respiratory Illness ◽  
Review Article ◽  
Gastrointestinal System ◽  
Rt Pcr ◽  
Significant Evidence ◽  
Stool Samples ◽  
High Possibility ◽  
Positive Results

In China, Wuhan in the province of China, COVID-19 a patient suffering from pneumonia was tested and to identify the cause, the throat swab of the patient was tested. On 7th January 2020 WHO declared the identification as COVID-19. And then it was proclaimed as a pandemic. It classically causes a respiratory illness presenting as a mild cough, fever and . However, several investigators have advocated the involvement of the gastrointestinal tract and liver in COVID-19 infection similar to other infections. Further research studies have shown results that are expanding the possibility of transmission because RT-PCR assessment has shown significant evidence for the presence of virus not only in samples but also in stool samples. Studies have shown that virus in stool samples have got positive results even after the illness has resolved, and two respiratory tests were done 24 hours after COVID-19 being tested negative. The review article the different findings of the clinical presentation of COVID-19. It sheds light on the effects of COVID-19 in the gastrointestinal system along with the reasons for the high possibility of transmission of COVID-19 through the route.

Clinical Epidemiology of Coronavirus Disease 2019:Defined on Current Research

2020 ◽  
pp. 54-72 ◽  
Author(s):  
Fengyu Zhang ◽  
Claude Hughes
Keyword(s):  
Clinical Presentation ◽  
Population Distribution ◽  
Clinical Epidemiology ◽  
Case Fatality ◽  
Immunological Response ◽  
Prevention Strategies ◽  
Clinical Type ◽  
Global Pandemic ◽  
Potential Therapeutics

Coronavirus disease 2019 (COVID-19) is a new infectious respiratory disease that has caused the ongoing global pandemic. The primary purpose of this article is to describe evolving clinical epidemiology of COVID-19, including 1) infection and testing, 2) clinical spectrum including classification of clinical type, asymptomatic cases, severe cases and comorbidity, and clinical and immunological response, 3) regional variation in clinical presentation, 4) population distribution by age, sex, and occupation, and finally, 5) case-fatality. This content may provide important information on detailed clinical type and presentation of the disease, in which appropriate clinical outcomes can be derived for developing prevention strategies and clinical studies or trials that aim to test potential therapeutics or products for different patient populations.

Strategies of In Situ Generated Magnesium Catalysis in Asymmetric Reactions

Synlett ◽  
2021 ◽  
Author(s):  
Dongxu Yang ◽  
Linqing Wang
Keyword(s):  
Asymmetric Synthesis ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Asymmetric Reactions ◽  
Chiral Ligands ◽  
Alkaline Earth Metal ◽  
Enantioselective Reactions ◽  
Earth's Crust

AbstractMagnesium (Mg) is a cheap, non-toxic, and recyclable alkaline earth metal that constitutes about 2% weight in the Earth’s crust. The use of magnesium catalysts to forge chiral moieties in molecules is highly attractive. Based on our work in recent years, we describe the current progress in the development of in situ generated magnesium catalysts and their application in asymmetric synthesis. In this perspective, a critically concise classification of in situ generated magnesium catalytic modes, with relevant examples, is presented, and representative mechanisms of each category are discussed. Building on the established diverse strategies, one can foresee that more innovative and structurally creative magnesium catalysts that are generated in situ will be developed to overcome more formidable challenges of catalytic enantioselective reactions.1 Introduction2 Magnesium Catalysts Generated in Situ from Chiral Ligands Containing Dual Reactive Hydrogens3 Magnesium Catalysts Generated in Situ from Monoanionic Chiral Ligands4 Bimetallic and Polymetallic Magnesium Catalysts Assembled in Situ5 Summary and Outlook

Sign in / Sign up

Export Citation Format

Share Document