FIP1L1-PDGFRA fusion-negative hypereosinophilic syndrome with uncommon cardiac involvement responding to imatinib treatment: A case report

Cardiac Magnetic Resonance Imaging Used to Determine a Rare Etiology of a Layered Left Ventricular Apical Thrombus

Eosinophilic myocarditis (EM) is a rare disease, often associated with hypereosinophilic syndrome (HES). Historically, the diagnostic gold standard was endomyocardial biopsy (EMB). We present a unique case of a 58-year-old female who presents after a syncopal episode and was found to have a layered left ventricular (LV) thrombus. Using laboratory studies and cardiac magnetic resonance imaging (MRI), we were able to delineate the etiology, avoiding any invasive testing.

Recalcitrant course of bullous pemphigoid indicating coexisting hypereosinophilic syndrome: A case report and literature review

Key Clinical Message

As dermatologists, we must be aware that even limited localized lesions may signal a life-threatening condition, for which early diagnosis and treatment can improve the prognosis.

Abstract

Bullous pemphigoid is an autoimmune disorder characterized by blister formation. Hypereosinophilic syndrome is a myeloproliferative disorder featuring papules, nodules, urticarial lesions, and blisters. The coexistence of these disorders may highlight the involvement of common molecular and cellular factors. Here, we describe a 16-year-old patient with hypereosinophilic syndrome and bullous pemphigoid.

Hypereosinophilia and Löffler's Endocarditis: A Systematic Review

Löffler endocarditis is an uncommon, but known complication of hypereosinophilic syndrome (HES). It is a relatively rare entity, and remains poorly understood. To this point in time, the compendium of knowledge about this disease consists of various case reports, prospective studies and review articles. We aim to present a scoping study about this disease. Our goals are to identify the characteristic features found in case reports to identify characteristic features found in patients with Löffler endocarditis as a result of hypereosinophilic syndrome. An analysis of the 26 case reports showed a mean age of 41.6 years with a standard deviation of 17.1 years. Dyspnea was the most common presenting complaint (64%) followed by fatigue (23%), cough (19%), fever (19%), orthopnea/paroxysmal nocturnal dyspnea (19%), stroke related symptoms (15%), chest pain (15%) and lower extremity edema (15%). The most common cardiac structure affected was the mitral valve (65%), followed by the tricuspid valve (42%), left ventricle (23%), with 35% of cases having involvement of two valves. The most common therapeutic modality was immunosuppression (85%), followed by anticoagulation (73%) and mitral valve replacement (23%). Death was reported in 19% of the cases. Löffler's endocarditis continues to be associated with high morbidity and mortality. Further research must aim to develop guidelines for management of this uncommon manifestation of hypereosinophilic syndrome.

Apoptosis of Eosinophil Granulocytes

Simple Summary

Eosinophil granulocytes (eosinophils) belong to the family of white blood cells that play important roles in the development of asthma and various types of allergy. Eosinophils are cells with a diameter of 12–17 µm and they originate from myeloid precursors. They were discovered by Paul Ehrlich in 1879 in the process of staining fixed blood smears with aniline dyes. Apoptosis (programmed cell death) is the process by which cells lose their functionality. Therefore, it is very important to study the apoptosis of eosinophils and their survival factors to understand how to develop new drugs based on the modulation of eosinophil apoptosis for the treatment of asthma and allergic diseases.

Abstract

In the past 10 years, the number of people in the Czech Republic with allergies has doubled to over three million. Allergic pollen catarrh, constitutional dermatitis and asthma are the allergic disorders most often diagnosed. Genuine food allergies today affect 6–8% of nursing infants, 3–5% of small children, and 2–4% of adults. These disorders are connected with eosinophil granulocytes and their apoptosis. Eosinophil granulocytes are postmitotic leukocytes containing a number of histotoxic substances that contribute to the initiation and continuation of allergic inflammatory reactions. Eosinophilia results from the disruption of the standard half-life of eosinophils by the expression of mechanisms that block the apoptosis of eosinophils, leading to the development of chronic inflammation. Glucocorticoids are used as a strong acting anti-inflammatory medicine in the treatment of hypereosinophilia. The removal of eosinophils by the mechanism of apoptosis is the effect of this process. This work sums up the contemporary knowledge concerning the apoptosis of eosinophils, its role in the aforementioned disorders, and the indications for the use of glucocorticoids in their related therapies.