Imaging palpable tumors in pediatrics

Abstract

Palpable tumors in children are a common reason for consulting a radiologist. The differential diagnosis is extensive and considerably different from that used in adults. Some of the etiologies of palpable tumors are little known outside of pediatrics. The most commonly used imaging test is ultrasonography, because in addition to being harmless and cost-effective, it is conclusive in most cases. Most palpable lesions in children are benign; it is estimated that only 1% are malignant. Knowing these lesions enables the correct diagnosis without the need to resort to unnecessary, sometimes invasive tests, thus avoiding delays in treatment when more severe disease is present. This article aims to review the clinical and radiological characteristics of the palpable lesions that are most common in pediatric patients, explaining the key features that enable accurate diagnosis.

Keywords: Child; Cuerpo extraño; Dermoid cyst; Epidermal cyst; Foreign body; Ganglio linfático; Ganglion cysts; Ganglión; Granuloma; Granuloma annulare; Granuloma anular; Hemangioma; Linfadenitis; Linfoma; Lymph nodes; Lymphadenitis; Lymphoma; Niño; Quiste dermoide; Quiste epidermoide.