Ultrasonography is an accurate, safe and valuable clinical tool in the diagnosis of IS. The use of ultrasonography as a primary investigation for patients with suspected IS prevents unnecessary radiological or surgical procedures being performed, and reduces radiation exposure while maintaining a high level of diagnostic accuracy. These results validate the use of ultrasonography for the diagnosis of IS in a developing country setting.

Acute renal failure due to primary renal Burkitt lymphoma in children is extremely rare. We report a case with acute secondary renal failure in a 4-year-old boy who presented with abdominal pain, anorexia, and vomiting. Abdominal computed tomography scans showed bilateral nephromegaly with multiple hypoenhancing regions. Renal biopsy confirmed Burkitt lymphoma. There was no lymphadenopathy or evidence of other solid organ involvement. The patient was responsive to treatment using the EPOCH-R protocol (etoposide, prednisone, vincristine, cyclophosphamide , doxorubicin, and rituximab). Here, we describe the clinical and imaging features associated with this rare entity.

Mutations in the Neurofibromatosis Type 1 (NF-1) gene, which is located on chromosome 17q11.2, are the cause of NF-1, an autosomal dominant hereditary condition in which tumors of the nerve system develop. Neurological, skeletal, and cutaneous abnormalities are symptoms of the condition. Of all gastrointestinal tract lesions, mesentery lesions are the least common. There are many gastrointestinal problems that can accompany mesenteric neurofibromas, or they may not. We describe a case of a 5-year-old kid with mesenteric neurofibromatosis, which results in bowel obstruction and abdominal discomfort. On a CT scan, the mesenteric vasculature was completely encircled by homogenous soft tissue lesions without any vessel wall invasion. Diffuse mesentery lesions were discovered during surgery, although they could not be fully removed.

Lymphoma with cardiac involvement is a high-risk lesion, especially in children. We report a rare clinical case of multifocal precursor B-cell lymphoblastic lymphoma in a child with cardiac involvement. A 4-year-old boy presented to the Vietnam National Children's Hospital with a vague headache, but magnetic resonance imaging of the head was normal. After 1 week, the patient showed symptoms of chest pain, fatigue, dyspnea, and abdominal pain. On transthoracic echocardiography and multislice computed tomography of the thorax, a mass was detected in the right atrial wall. Abdominal ultrasound showed a small bowel intussusception, multiple nodules in the intestinal wall, and mesenteric lymph nodes. Histopathology of the bowel confirmed the diagnosis of multifocal precursor B-cell lymphoblastic lymphoma. The patient responded to 3 cycles of chemotherapy for lymphoma. Therefore, combining multiple imaging methods allowed for early diagnosis and improved treatment.