Related Experiment Video

Updated: Apr 19, 2026

Whole-body PET/MRI of Pediatric Patients: The Details That Matter
10:02

Whole-body PET/MRI of Pediatric Patients: The Details That Matter

Published on: December 19, 2017

15.7K

Whole-body MRI as an unconventional diagnostic tool in a pediatric patient with systemic infection

Paolo Picco1, Aldo Naselli1, Giovanna Pala1

  • 12nd Pediatric Division, IRCCS Giannina Gaslini Insitute and University of Genoa, Genova, Italy.

Acta Radiologica Short Reports
|December 24, 2014
PubMed

Insights

Human granulocytic anaplasmosis (HGA), a tickborne illness, can present unusually. Whole-body MRI revealed small, widespread nodules in a 14-year-old girl, suggesting a new diagnostic approach for atypical infections.

Area of Science:

  • Infectious Diseases
  • Radiology
  • Microbiology

Background:

  • Anaplasma phagocytophilum causes human granulocytic anaplasmosis (HGA), a significant tickborne illness.
  • HGA typically presents with fever, malaise, cytopenia, splenomegaly, and hepatitis.

Observation:

  • A case of HGA in a 14-year-old girl is presented.
  • Unusual findings on whole-body magnetic resonance imaging (MRI) were observed.

Findings:

  • The MRI revealed small, widespread, punctuate millimetric nodules.
  • These nodules were hypointense on T1-weighted and hyperintense on STIR sequences.

Implications:

  • This MRI pattern is a novel finding in HGA.
  • This imaging characteristic may aid in diagnosing atypical infectious diseases.
Keywords:
Human granulocytic anaplasmosis (HGA)infectious diseaseswhole-body MRI

More Related Videos

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure15:18

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

18.8K
Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates10:04

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates

Published on: September 5, 2017

19.4K

Related Concept Videos

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
10.5K
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
394
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
952
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
556
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
1.3K