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Imaging features of juvenile xanthogranuloma.

Pediatr Radiol

February 2023

Department of Radiology, Children's Hospital of Fudan University, 399 Wanyuan Rd, Shanghai, 201100, China.

Background: Juvenile xanthogranuloma is rare in children and there are limited data on its imaging features.

Objective: To analyze the computed tomography (CT) and magnetic resonance imaging (MRI) features of juvenile xanthogranuloma in children.

Materials And Methods: A retrospective review was performed of clinical and radiographic data of histologically confirmed juvenile xanthogranuloma between January 2009 and June 2020.

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Multisystemic Imaging Findings in Chinese Patients With Erdheim-Chester Disease.

AJR Am J Roentgenol

December 2019

Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No 1 Shuaifuyuan, Dongcheng District, Beijing, China, 100730.

Radiology is essential for diagnosing and managing Erdheim-Chester disease (ECD), a rare multisystemic non-Langerhans cell histiocytic neoplasm. This study aimed to systemically investigate imaging characteristics of patients with ECD. Radiographic, CT, and MR images of 28 Chinese patients (14 male, 14 female; 5-65 years old) diagnosed with ECD on histopathology at our medical center between January 2014 and January 2019 were retrospectively analyzed.

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We report computed tomography (CT) findings for a rare case of follicular dendritic cell sarcoma of the greater omentum from a 47-year-old female patient. The tumor presented ash a palpable mass lesion in the umbilical region for the last two months. Multidetector CT scan of the abdomen showed a 14-cm soft-tissue mass with calcification and necrosis within the greater omentum.

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Nodular histiocytic aggregate (NHA) of the omentum is a rare benign proliferative process composed predominantly of histiocytes with scattered mesothelial cells. NHA is a differential diagnosis for neoplasms or metastatic tumors in cancer patients. To further clarify this clinical pitfall issue, the authors investigated surgical samples of the greater omentum from 96 patients with gastrointestinal malignancies and 53 patients with gynecologic neoplasms.

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