Hepatosplenic Cat Scratch Disease: Description of Two Cases Undergoing Contrast-Enhanced Ultrasound for Diagnosis and Follow-Up and Systematic Literature Review.

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Cat scratch disease (CSD) is a disease usually characterized by self-limited lymphadenopathy of the young man. Rarely CSD, however, can manifest itself as an unusual hepatosplenic form (HS-CSD) in immunocompetent patients. HS-CSD diagnosis is generally based on clinical features, imaging, and serologies, but sensitivity of serologies is very variable, like that of other diagnostic methods, as Warthin-Starry silver stain and isthology. Also there are no specific markers for the follow-up. The use of the CEUS (abdominal contrast-enhanced ultrasound) in HS-CSD is not previously described in literature examined, but we think that CEUS can be of help to diagnosis and follow-up of these patients, even after an initial CT scan, because it is a sensitive method, as seen in other diseases associated with granulomas, such as sarcoidosis. We describe 2 new cases of HS-CSD, and we performed a systematic review of the clinical cases reported in the past 10 years in the literature associated to an analysis of clinical, diagnostic, and therapeutic aspects of the disease.