RESUMO
Los condrosarcomas son neoplasias malignas con diferenciación cartilaginosa, la mayoría de localización intraósea y en huesos largos; su incidencia en cabeza y cuello es baja y más aún, su localización periosteal y mandibular. Se presenta un caso de neoplasia maligna productora de matriz condroide, periosteal, de alto grado, recidivante y localizada en mandíbula.
The chondrosarcomas are malignant neoplasms characterized by cartilaginous differentiation, mainly located intraosseously, and in large bones. Their incidence in head and neck is rare and even more so when it is periosteal or located in the jaw. A case of a malignant tumor producing chondroid matrix, periosteal, of high-grade, recurrent and localized in the jaw is presente.
RESUMO
INTRODUCTION: Ganglioneuroma is a rare, benign, neuroblastic tumor arising mainly from the central or peripheral autonomic nervous system, especially the sympathetic system. The most affected anatomical sites are the posterior mediastinum, retroperitoneum, adrenal gland and head and neck soft tissue. In the current literature, reports of ganglioneuroma diagnosed by fine-needle aspiration and its cytological appearance are scarce. CASE PRESENTATION: A 5-year-old girl presented with a mass in the cervical region since birth. Laboratory routine tests were within normal limits, ultrasonography demonstrated a solid and well-circumscribed lesion in the soft tissues of the cervical region. Fine needle aspiration biopsy was carried out, and the obtained smears showed a mixture of mature ganglion cells and groups of spindle cells suggestive of schwann cell origin. A diagnosis of ganglioneuroma was suggested. Core biopsy and surgical resection confirmed this diagnosis. CONCLUSION: Congenital ganglioneuroma of the cervical region is an uncommon soft tissue benign neoplasm of neuroblastic origin, and it should be considered in the differential diagnosis of head and neck pediatric soft tissue tumors. Fine needle aspiration biopsy technique is a reliable method that can be used with confidence when dealing with pediatric soft tissue tumors.