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עמוד בית
Sun, 13.10.24

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April 2024
Afik Tibi MD, Ziyad Khamaysi MD, Emily Avitan-Hersh MD PhD

Background: Group A Streptococcus (GAS) causes a wide spectrum of acute infections and immune-related diseases, most of which include a dermatological presentation. However, dermatological findings have a wide range of other possible etiologies. The diagnosis of GAS-related disease requires an indication of preceding GAS infection by direct culture or by measuring antistreptolysin O (ASLO) titer.

Objectives: To explore the correlation between ASLO positivity and dermatological diseases.

Methods: We analyzed clinical data from all cases of patients over 18 years of age who underwent ASLO testing between the years 2016 and 2020 in the Department of Dermatology at Rambam Health Care Campus.

Results: Of 152 adult patients with ASLO tests, 100 had diagnoses that were potentially related to streptococcal infection. Vasculitis and psoriasis were the most suspected diagnoses. Positive ASLO test was found in 44 (29%) patients. The diagnoses showing the highest ratio of positive ASLO were psoriasis (60%), erythema nodosum (46%), skin infections (43%), Sweet syndrome (33%), and vasculitis (15%). Psoriasis types included plaque psoriasis (8 patients), guttate psoriasis (3 patients), and palmoplantar pustulosis and erythroderma (2 patients each).

Conclusions: Although the applicability of ASLO for the spectrum of dermatological diseases remains unclear, our results enhance the practical relevance of the test. We showed a higher prevalence of positive ASLO tests in psoriasis and erythema nodosum cases and a lower prevalence in vasculitis. Notably, ASLO was positive in all psoriasis subtypes, suggesting high utility of the test for psoriasis.

December 2018
Tzvika Porges MD, Tali Shafat MD, Iftach Sagy MD, Lior Zeller MD, Carmi Bartal MD, Tamara Khutarniuk MD, Alan Jotkowitz MD and Leonid Barski MD

Background: Erythema nodosum (EN) is the most common type of panniculitis, commonly secondary to infectious diseases.

Objectives: To elucidate the causative factors and the clinical presentation of patients with EN (2004–2014) and to compare their data to those reported in a previous study.

Methods: A retrospective study was conducted of all patients diagnosed with EN who were hospitalized at Soroka University Medical Center (2004–2014). The clinical, demographic, and laboratory characteristics of the patients were compared to those in a cohort of patients diagnosed with EN from 1973–1982.

Results: The study comprised 45 patients with a diagnosis of EN. The most common symptoms of patients hospitalized with EN were arthritis or arthralgia (27% of patients). Patients with EN, compared to those reported in 1987, has significantly lower rates of fever (18% vs. 62% P < 0.001), streptococcal infection (16% vs. 44%, P = 0.003), and joint involvement (27% vs. 66%, P < 0.001). In addition, fewer patients had idiopathic causes of EN (9% vs. 32%, P = 0.006).

Conclusions: In the past decades, clinical, epidemiological, and etiological changes have occurred in EN patients. The lowering in rate of fever, streptococcal infection, and joint involvement in patients with EN are probably explained by improvements in socioeconomic conditions. The significantly decreasing rate of idiopathic causes of EN is possibly due to the greater diagnostic accuracy of modern medicine. The results of the present study demonstrate the impact of improvements in socioeconomic conditions and access to healthcare on disease presentation.

March 2014
Ilan Goldberg, Oksana Finkel, Andrea GatD, Eli Sprecher and Helena Martinez de Morentin
Erythema nodosum and pyoderma gangrenosum are common skin manifestations in inflammatory bowel diseases. Curiously, these two cutaneous features have seldom been reported to occur simultaneously.  We present three patients affected with inflammatory bowel disease, with concomitant erythema nodosum and pyoderma gangrenosum.

February 2006
S. Kivity, B. Shalmon and Y. Sidi

Intravascular lymphoma is a rare sub-type of extranodal diffuse large B cell lymphoma characterized by the presence of lymphoma cells only in the lumina of small vessels, particulary capillaries

February 2000
Ben Zion Garty MD and Oded Poznanski MD

Background: Erythema nodosum, although uncommon in children, is the most frequent form of panniculitis in pediatrics.  EN has been associated with various infections and chronic inflammations, and its course varies with age, gender, and racial and geographic factors.  There is no information on EN in Israeli children.

Objectives: To examine the clinical course of EN and the conditions with which it is associated in Israeli children.

Methods: We conducted a retrospective study of 24 children with a diagnosis of EN who presented at our Center over a 10 year period (1989–98).

Results: EN was more frequent in females than males (ratio 2:1) due to a cluster of adolescent girls. The mean duration of the skin manifestation was 18 days. The course was benign in all patients. Streptococcal infection was the most common cause (25%), followed by Epstein-Barr virus infection (18%) and inflammatory bowel disease (13%).  In one-third of cases, no specific cause could be identified. Tuberculosis, an important cause of EN in the past, was not found in our patients.

Conclusions: Most cases of EN in Israeli children are related to streptococcal and EBV infections or to chronic inflammatory conditions. Despite the increase in tuberculosis morbidity in Israel during recent years, we found no association of EN and tuberculosis in our study.

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EN = erythema nodosum

EBV = Epstein-Barr virus

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