Alzaher Asrar,  Busaeed Fajir,  Alsayegh Hassan

Final Pr. ID: Poster #: SCI-033

In the background of this limited data, this study aims to analyze and compare the size significance of right iliac fossa lymph nodes in pediatric patients in relation to metabolic activity on (18F-FDG PET/CT), scan in tertiary center managing oncological and non-oncological cases. Read More

Authors:  Alzaher Asrar , Busaeed Fajir , Alsayegh Hassan

Keywords:  Lymph node size, PET/CT, CT

Krishnamurthy Ganesh,  Escobar Fernando,  Srinivasan Abhay,  Smith Christopher,  Biko David,  Pinto Erin,  Dewitt Aaron,  Dori Yoav

Final Pr. ID: Paper #: 068

Inguinal lymph node identification using ultrasound is critical in performing intranodal lymphangiography. We routinely utilize a 15 MHz “hockey stick” linear high resolution ultrasound probe (Philips Epic 7) for identification as well as to gain needle access into the inguinal lymph node. However in children with severe body wall edema and in low weight premature babied identification of lymph nodes can be difficult and sometimes impossible. Higher frequency ultrasound transducers offer the potential for improved identification of lymph nodes in such cases. The aim of this study was to compare imaging finding of high resolution US probe to the traditional 15 mHz probe in patients undergoing lymph node access for lymphangiography. Read More

Authors:  Krishnamurthy Ganesh , Escobar Fernando , Srinivasan Abhay , Smith Christopher , Biko David , Pinto Erin , Dewitt Aaron , Dori Yoav

Keywords:  Ultra high frequency, lymph nodes, lymphatic intervention

Cho Joo,  Sohn Jae Ho,  Vargas Sara,  Lee Edward

Final Pr. ID: Poster #: SCI-016

To determine CT imaging features of benign intra-pulmonary lymph nodes in pediatric patients. Read More

Authors:  Cho Joo , Sohn Jae Ho , Vargas Sara , Lee Edward

Keywords:  lymph node, benign, triangular

Carvalho Yago,  Sameshima Yoshino,  Lima Natalia,  Gual Fabiana

Final Pr. ID: Poster #: EDU-010

Ultrasound is a valuable tool for evaluating lymph nodes in the context of an inflammatory response. Lymph nodes are crucial in the body's immune system, and changes in their size, shape, and echogenicity can provide valuable information about the underlying pathology. What is expected in the inflammatory response is the maintenance of its typical characteristics such as dimension, fatty hilum, thin cortex and hilar flow, however, some pathologies may present atypical lymph node enlargement. These findings are not considered pathognomonic manifestations but they can give us very important tips to direct us to the correct diagnosis as we describe in our case series: 1. Cat-scratch disease: male patient, 10-year-old, with painful epitrochlear, cervical and axillary lymph nodes for 3 months. Ultrasound (US) showed enlarged hypoechogenic lymph nodes (local lymph nodes in the same region as the cat scratch). Serological test confirmed cat scratch disease diagnosis. 2. Bacille Calmette–Guérin lymphadenitis: male patient, 7-months-old, with post vaccination right axillary lymphadenopathy. US revealed right enlarged axillary lymph node, hypoechogenic, containing tiny hyperechoic foci. 3. Lymphomatous lymph nodes: male patient, 17 years old, with painless cervical node for 4 months. US showed enlarged, heterogeneous lymph node, with loss of fatty hilum and well-defined walls, with typical findings by color Doppler study, as we will show. Immunophenotyping: non-Hodgkin's lymphoma. 4. Streptococcus Lymphadenitis: 6-year-old female patient with cervical lymph nodes. US showed Streptococcus lymphadenitis common findings: enlarged hypoechoic lymph nodes, oval-shaped, with thick capsule and hyperechogenicity of adjacent tissue. Increased central and peripheral blood flow by color Doppler. Swab test confirmed Streptococcus. 5. Thyroid tumor metastasis: 17-year-old male patient with a palpable cervical nodule. US showed a solid hypoechoic thyroid nodule and local lymph node with calcifications. Biopsy confirmed papillary thyroid carcinoma with secondary involvement of lymph node. Learning points: 1. Anatomical review of the cervical lymph node chains by ultrasound. 2. Learn typical sonographic features of atypical lymph nodes; 3. Value the importance of correlation of imaging findings with clinical data, tests and biopsy; 4. Assess the pediatric cases from our pediatric radiology group that will be useful for your future atypical cases. Read More

Authors:  Carvalho Yago , Sameshima Yoshino , Lima Natalia , Gual Fabiana

Keywords:  atypical lymph nodes, ultrasound evaluation

Mrak Lara,  Riedesel Erica,  Maxfield Bradley,  Gill Kara

Final Pr. ID: Poster #: EDU-065

1. Cervical lymphadenopathy is common in the pediatric population and is associated with a wide range of pathologies.
2. Ultrasound evaluation plays a critical role in distinguishing benign versus malignant etiologies.
3. Ultrasound characteristics can guide further management and potential interventions.

Case Discussion:
1. Normal cervical lymph nodes
2. Primary lymphoproliferative disorders
3. Metastatic disease
4. Granulomatous lymphadenitis
5. Reactive lymphadenopathy Read More

Authors:  Mrak Lara , Riedesel Erica , Maxfield Bradley , Gill Kara

Keywords:  Lymph Nodes