Reliability of sonoelastography in predicting pediatric cervical lymph node malignancy.

PURPOSE: Controversy exists as regards the best non-invasive diagnostic tool for pediatric cervical lymphadenopathy. The current work aimed to evaluate the reliability, sensitivity, specificity, and accuracy of sonoelastography in diagnosing benign and/or malignant pediatric cervical lymphadenopathy. METHODS: Prospective study took place over a period of 4 years from January 2013 to December 2016. A total of 177 lymph nodes (LNs) in 128 children with an age ranging from 11 months to 12 years were recruited in this study. Patients were 77 males and 51 females with a ratio of 3:2. All patients underwent a thorough history taking and clinical examination of the neck focusing on the cervical lymph nodes. After that, a B-mode sonography, Color Doppler ultrasound, and Sonoelastography were performed. Elastographic patterns of 1-5 were evaluated, whereas patterns of 3-5 (firm to hard) were suspected to have a malignant nature. Sonographic-guided aspiration cytology took place in 107 lymph nodes and excisional biopsy in 102 lymph nodes, whereas 13 lymph nodes responded adequately to conservative treatment. They proved to be benign reactive hyperplasia. RESULTS: The majority of LNs (87%) were of the malignant type that showed an elastographic pattern of 3-5. The same patterns were observed in only 6 (3.4%) of the benign LNs. Sonoelastography showed a sensitivity of 85.9%, specificity of 100%, PPV of 100%, NPV of 75.96%, and overall accuracy of 90.23% in distinguishing benign from malignant lymph nodes. Using the B-Mode ultrasound, an abnormal hilum was seen in 75%. The accuracy of color Doppler US reached 82.7%. CONCLUSIONS: Sonoelastography may be superior to other US modalities in elucidating different cervical lymph node biopsy helping to distinguish benign from malignant lesions. This may replace the lymph node biopsies in the future. Moreover, its use in the follow-up of patients with cervical malignancies may reduce the number of future biopsies. Further studies with more patients may be needed for a better assessment of results.

Short bowel syndrome as an unusual complication of strangulated congenital diaphragmatic hernia: Case report.

INTRODUCTION: Strangulation is a rare complication of congenital diaphragmatic hernia (CDH). There are few cases in the literature describing strangulated CDH. However, none of them was a recurrence of a previously repaired defect nor resulted in short bowel syndrome. PRESENTATION OF CASE: We report an unusual case of newborn presenting with CDH that was repaired shortly after birth but developed recurrence with strangulation few months after, requiring a massive resection, resulting in short bowel syndrome (SBS). It was managed via total parenteral nutrition feeding for three months until the patient was able to tolerate orally. DISCUSSION: There were one familiar case in the reported literature by Woolley of an infant developing bowel infraction as a result of CDH where he later developed short bowel syndrome. CONCLUSION: Short bowel syndrome is an unlikely outcome of strangulated CDH. Early repair of the defect should be promoted to avoid the devastating consequences of an CDH similar to the ones encountered in our case. High index of suspicion should be kept during the follow-up of patients with CDH post repair to detect early signs of recurrences.