Artikel ; Online: More than just Langerhans cell histiocytosis: a radiologic review of histiocytic disorders.
Radiographics : a review publication of the Radiological Society of North America, Inc
2014 Band 34, Heft 7, Seite(n) 2008–2024
Abstract: Although Langerhans cell histiocytosis (LCH) is a familiar entity to most radiologists and to pediatric radiologists in particular, it is but one of a group of disorders caused by the overproduction of histiocytes, a subtype of white blood cells. Other ... ...
| Abstract | Although Langerhans cell histiocytosis (LCH) is a familiar entity to most radiologists and to pediatric radiologists in particular, it is but one of a group of disorders caused by the overproduction of histiocytes, a subtype of white blood cells. Other less familiar diseases in this category are Erdheim-Chester disease (ECD), juvenile xanthogranuloma (JXG), Rosai-Dorfman disease (RDD), and hemophagocytic lymphohistiocytosis (HLH). This review describes the classification system, clinical manifestations, and pathophysiology of each disease, with particular attention to differential radiographic findings, including typical locations of involvement and varying appearances at radiography, computed tomography, magnetic resonance imaging, ultrasonography, and nuclear medicine imaging. Although LCH has a wide variety of manifestations and appearances, classic imaging findings include vertebra plana, skull lesions with a beveled edge, the "floating tooth" sign, bizarre lung cysts, and an absent posterior pituitary bright spot with infundibular thickening. The classic imaging findings of ECD are a perirenal rind of soft tissue and patchy long bone osteosclerosis. RDD has more nonspecific imaging findings, including lymphadenopathy (most commonly cervical) and intracranial lesions. Imaging findings in HLH are broad, with the most common abnormalities being hepatosplenomegaly, cerebral volume loss, and periventricular white matter abnormalities. JXG can manifest at imaging, but radiology does not play a major role in diagnosis. Familiarity with these disorders and their associated imaging findings facilitates correct and timely diagnosis. Imaging also features prominently in the assessment of treatment response. |
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| Mesh-Begriff(e) | Diagnostic Imaging ; Histiocytosis/diagnosis ; Humans ; Image Enhancement ; Image Interpretation, Computer-Assisted | |||||
| Sprache | Englisch | |||||
| Erscheinungsdatum | 2014-11 | |||||
| Erscheinungsland | United States | |||||
| Dokumenttyp | Journal Article ; Review | |||||
| ZDB-ID | 603172-9 | |||||
| ISSN | 1527-1323 ; 0271-5333 | |||||
| ISSN (online) | 1527-1323 | |||||
| ISSN | 0271-5333 | |||||
| DOI | 10.1148/rg.347130132 | |||||
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| Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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