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American Journal of Case Reports is ranked the World leading among journals dedicated to publishing clinical case reports. AJCR is indexed in Web of Science, PubMed/ PMC, Scopus

(1) CiteScore (Impact Factor - like by Scopus, Elsevier) is the number of citations received by a journal in one year to documents published in the three previous years, divided by the number of documents indexed in Scopus published in those same three years.

(2) SNIP (Source Normalized Impact per Paper) measures a source’s contextual citation impact by weighting citations based on the total number of citations in a subject field. It helps you make a direct comparison of sources in different subject fields. SNIP takes into account the characteristics of the source's subject field, which is the set of documents citing that source.

(3) SJR is weighted by the prestige of a journal. Subject field, quality, and reputation of the journal have a direct effect on the value of a citation. SJR assigns relative scores to all of the sources in a citation network. Its methodology is inspired by the Google PageRank algorithm, in that not all citations are equal. A source transfers its own 'prestige', or status, to another source through the act of citing it. A citation from a source with a relatively high SJR is worth more than a citation from a source with a lower SJR. 

Clinical case reports are an invaluable first-hand source of evidence in medicine and a tool most often used in practice to exchange information and generate a more expanded search for evidence. In addition to the “evidence of what happened”, single or multiple cases are an important basis for further and more advanced research on diagnosis, treatment effectiveness, causes and outcomes of disease. However limited their conclusions may be, case reports remain a fundamental component of medicine, contributing greatly to the advancement of health care. In today's ever-expanding Evidence-Based Medicine, case reporting require a well-defined focus, content, and structure.

Presently, only a fraction of case reports is useful for clinical decision-making and bedside-decision oriented research. Therefore, the aim of the Journal is to gather case reports across medical disciplines, thereby integrating interdisciplinary, international medical knowledge.

Published: 2019-01-22

Unusual Presentation of Rosai-Dorfman Disease: Report of a Rare Case

Khalid Waleed AlKuwaity, Meshal Hamoud Alosaimi, Khallad Tariq Alsahlawi, Mohammed Abdullatif Alomair, Mohammad Abdullah Battyour, Dana Waleed Alkuwaity, Maram Adel Buzeid, Duaa Saeed Alsaqer

(Department of Medicine, College of Medicine, King Faisal University, Al Ahsa, Saudi Arabia)

Am J Case Rep 2019; 20:91-96

DOI: 10.12659/AJCR.912423

BACKGROUND: Rosai-Dorfman disease is a rare disorder that was previously described as sinus histiocytosis with massive lymphadenopathy. The disease is derived from overproduction of monocytes, which play an important role in immunity. The overproduction of macrophages will lead to accumulation of the cells in the affected tissue.
CASE REPORT: A 40-year-old Saudi male presented with shortness of breath with joint pain starting 3 months prior. His main complaints were a dry cough, bilateral neck swelling, dry mouth, dry skin, itchy eyes, and general fatigability. Physical examination showed that the patient had prominent bilateral parotid swelling that measured roughly 5 by 3 cm, which was firm and tender, with a smooth surface and no local signs of inflammation. Joint examination revealed non-tender and non-swollen joints, with mild limitations of movement. Eye examination revealed dry eyes after having a positive Schirmer test. For diagnosis, the patient underwent complete blood count, autoantibody, histopathology, immunohistochemistry, and radiological assessment. The histopathological study confirmed Rosai-Dorfman disease. Rosai-Dorfman disease can involve various presentations, as in this patient, who exhibited a highly unusual presentation in association with autoimmune disease.
CONCLUSIONS: Rosai-Dorfman disease must be considered as differential diagnosis in patients who present with bilateral lymphadenopathy with multisystem complaints, as the disease can present with various characteristics.

Keywords: Autoimmune Diseases, Histiocytosis, Sinus, sarcoidosis, Sjogren's Syndrome

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