Rosai-Dorfman disease involving the entire esophagus.

We present a case of Rosai-Dorfman disease (RDD) occurred in a 6-year-old male child, characterized by extensive involvement of the esophagus. Eight months ago, the child presented with persistent fever and a diffuse dark red rash. MRI revealed a mass occupying the left nasal cavity and septal sinus and biopsy pathology confirmed the diagnosis of RDD.

Can visceral fat parameters based on computed tomography be used to predict occult peritoneal metastasis in gastric cancer?

Background: The preoperative prediction of peritoneal metastasis (PM) in gastric cancer would prevent unnecessary surgery and promptly indicate an appropriate treatment plan.

Aim: To explore the predictive value of visceral fat (VF) parameters obtained from preoperative computed tomography (CT) images for occult PM and to develop an individualized model for predicting occult PM in patients with gastric carcinoma (GC).

Methods: A total of 128 confirmed GC cases (84 male and 44 female patients) that underwent CT scans were analyzed and categorized into PM-positive ( = 43) and PM-negative ( = 85) groups.

Multimodality imaging and treatment of paranasal sinuses nuclear protein in testis carcinoma: A case report.

Background: Nuclear protein in testis (NUT) carcinoma is a rare aggressive malignant epithelial cell tumor, previously known as NUT midline carcinoma (NMC), characterized by an acquired rearrangement of the gene encoding NUT on chromosome 15q14. Due to the lack of characteristic pathological features, it is often underdiagnosed and misdiagnosed. A variety of methods can be used to diagnose NMC, including immunohistochemistry, karyotyping, fluorescence in situ hybridization, reverse transcription-polymerase chain reaction, and next-generation sequencing.

Intravascular papillary endothelial hyperplasia of the spleen in a child: a case report.

Background: Intravascular papillary endothelial hyperplasia (IPEH) is a vascular tumor characterized by the proliferation of endothelial cells with papillary formation. It is a rare benign condition affecting the head and neck. Currently, no cases of IPEH of the spleen have been reported.

Use of radiomics containing an effective peritumoral area to predict early recurrence of solitary hepatocellular carcinoma ≤5 cm in diameter.

Background: Hepatocellular carcinoma (HCC) is the sixth leading type of cancer worldwide. We aimed to develop a preoperative predictive model of the risk of early tumor recurrence after HCC treatment based on radiomic features of the peritumoral region and evaluate the performance of this model against postoperative pathology.

Method: Our model was developed using a retrospective analysis of imaging and clinicopathological data of 175 patients with an isolated HCC ≤5 cm in diameter; 117 patients were used for model training and 58 for model validation.

Malignant giant cell tumors of the tendon sheath of the right hip: A case report.

Background: Malignant giant cell tumor of the tendon sheath (MGCTTS) is an extremely rare malignant tumor originating from synovial and tendon sheath tissue with highly aggressive biological behavior and a high rate of local recurrence and distant metastasis which should be considered a highly malignant sarcoma and managed aggressively. How to systemically treat MGCTTS remains a challenge. In this case, a patient with MGCTTS suffered a recurrence after 2 surgical resections received adjuvant chemotherapy and radiation therapy, but the treatment outcome remained poor.

Application of computed tomography-based radiomics in differential diagnosis of adenocarcinoma and squamous cell carcinoma at the esophagogastric junction.

Background: The biological behavior of carcinoma of the esophagogastric junction (CEGJ) is different from that of gastric or esophageal cancer. Differentiating squamous cell carcinoma of the esophagogastric junction (SCCEG) from adenocarcinoma of the esophagogastric junction (AEG) can indicate Siewert stage and whether the surgical route for patients with CEGJ is transthoracic or transabdominal, as well as aid in determining the extent of lymph node dissection. With the development of neoadjuvant therapy, preoperative determination of pathological type can help in the selection of neoadjuvant radiotherapy and chemotherapy regimens.

Primary clear cell sarcoma of soft tissue in the posterior cervical spine invading the medulla oblongata: A case report.

Background: Clear cell sarcoma (CCS) is a rare and highly malignant soft tissue tumor, usually occurring in the deep soft tissues of the distal tendons and aponeurosis of the extremities, especially the feet and knees. CCS originating in the head and neck is extremely rare. The clinical manifestations of CCS in the head and neck are not typical, and the imaging manifestations have certain characteristics, but the diagnosis still depends on pathological examination and genetic testing.

Postoperative multiple metastasis of clear cell sarcoma-like tumor of the gastrointestinal tract in adolescent: A case report.

Background: Clear cell sarcoma-like tumor of the gastrointestinal tract (CCSLGT) is a rare malignant gastrointestinal mesenchymal soft tissue tumor. Its genetic feature is gene rearrangement. Histologically, it is often accompanied by a varying number of CD68-positive osteoclast-like giant cells.

Multimodality Imaging Evaluation of Primary Right Atrial Paraganglioma: A Case Report and Literature Review.

Background: Cardiac paraganglioma (CPGL) accounts for 1-3% of cardiac tumors and is usually benign. In total, 35-50% of CPGL lesions secrete catecholamines, causing hypertension, excessive sweating, palpitations, headache, and other symptoms. Preoperative imaging evaluation is important to determine the location of the cardiac mass, its blood supply vessels, and the relationship with surrounding structures.

Pleomorphic adenoma of the left lacrimal gland recurred and transformed into myoepithelial carcinoma after multiple operations: A case report.

Background: Myoepithelial carcinoma (MC) is a clinically rare malignancy, there is controversy regarding its etiology and its biological behavior is not fully elucidated. Extensive surgical resection is the main treatment method. We describe a case of pleomorphic adenoma (PA) with multiple postoperative recurrences after malignant transformation, and the history of the disease in this patient was more than 20 years.

Extranodal nasal NK/T cell lymphoma with bronchial mucoepidermoid carcinoma and lung adenocarcinoma: a case report.

Extranodal nasal NK/Tcell lymphoma (ENKTCL) is a relatively rare type of non-Hodgkin's lymphoma. It is highly malignant, highly invasive, and easy to relapse. Most patients have a poor prognosis.

Computed Tomography Features and Clinical Prognostic Characteristics of Hepatoid Adenocarcinoma of the Stomach.

Purpose: Hepatoid adenocarcinoma of the stomach (HAS) is a highly malignant and aggressive tumor. The purpose of this study was to describe the clinical, computed tomography (CT), and prognostic features of HAS to increase the awareness of this entity and determine its distinguishing features from non-HAS tumors.

Methods: The CT features and clinical data of 47 patients in our hospital with pathologically documented HAS were retrospectively analyzed, and the relevant differences between pure HAS (pHAS) and mixed HAS (mHAS) were determined.

Postoperative recurrence of myxoid liposarcoma of left thigh with pericardial metastasis: A case report.

Myxoid liposarcoma (MLS) is a common subtype of liposarcoma in children and adolescents and can occur anywhere in the body. Cardiac metastases from MLS are very rare. We report a rare case of postoperative recurrence of MLS in the left thigh with ectopic and metachronous pericardial metastases.

Disease state prediction for 2019 novel coronavirus (COVID-19) pneumonia using CT manifestations and body temperature dynamic analysis: A SQUIRE-compliant study.

2019 Novel Coronavirus (COVID-19) is a new acute infectious disease of respiratory system, posed a great threat to human health because of its strong infectivity and rapid progress. This study aimed to assess the severity of COVID-19 Pneumonia by analyzing the change of CT manifestations and body temperature.This retrospective review included 22 patients with COVID-19 pneumonia.

Development of CT-Based Imaging Signature for Preoperative Prediction of Invasive Behavior in Pancreatic Solid Pseudopapillary Neoplasm.

Purpose: It is challenging for traditional CT signs to predict invasiveness of pancreatic solid pseudopapillary neoplasm (pSPN). We aim to develop and evaluate CT-based radiomics signature to preoperatively predict invasive behavior in pSPN.

Methods: Eighty-five patients who had pathologically confirmed pSPN and preoperative contrasted-enhanced CT imaging in our hospital were retrospectively analyzed (invasive: 24; non-invasive: 61).

Malignant giant cell tumor in the left upper arm soft tissue of an adolescent: A case report.

Background: Giant cell tumor of soft tissue (GCT-ST) is an extremely rare low-grade soft tissue tumor that is originates in superficial tissue and rarely spreads deeper. GCT-ST has unpredictable behavior. It is mainly benign, but may sometimes become aggressive and potentially increase in size within a short period of time.

[Risk factors associated with anastomotic leak in patients with Crohn disease undergoing bowel resections].

Objective: To investigate the risk factors and the prevention management of anastomotic leak in patients with Crohn disease undergoing bowel resections.

Methods: Clinical data of 91 patients with Crohn disease undergoing intestinal resection from 1990 to 2010 were analyzed retrospectively. Logistic regression analysis was used to assess the risk factors of anastomotic leak.

Study of embryotoxicity of Fusarium mycotoxin butenolide using a whole rat embryo culture model.

Butenolide, a mycotoxin elaborated by several toxigenic Fusarium species, has been implicated as an etiological factor of Kashin-Beck disease and it is always detected in food from endemic Kashin-Beck disease areas. Although butenolide is considered as a potential health risk to humans and animals, its toxicity targets and mechanism of action have not been fully understood and the knowledge of its developmental toxicity is absent. The present study investigated butenolide embryotoxicity via an in vitro whole embryo culture system using rat embryos.