[Tumor lysis syndrome after the administration of corticosteroids in an adolescent without confirmed neoplastic disease. Case Reports].

Tumor lysis syndrome is a potentially lethal complication and constitutes with infections the most frequent oncological emergency. In children, this condition can be secondary to neoplastic diseases, with corticosteroids being a triggering factor. This paper presents the case of an adolescent patient, without known or obvious neoplasms, who developed a tumor lysis syndrome after the administration of corticosteroids due to suspected respiratory infection.

[Severe chemical pneumonitis secondary to talc inhalation. A pediatric case].

Talc is a hydrated magnesium silicate. It was part of traditional infant and young child care for decades. In children, its acute inhalation, generally accidental during diaper changes, although not frequent, is a potentially dangerous condition, and can cause severe respiratory distress and even death.

[Diffuse pulmonary lymphangiomatosis with pleural and pericardial involvement. Pediatric case report].

Diffuse pulmonary lymphangiomatosis is a rare disease characterized by marked proliferation and dilation of lymphatic vessels in the lungs, pleura, and mediastinum. The prevalence is unknown and the etiology is not fully understood. A 22-month-old girl was admitted for polyserositis, with pericardial and pleural effusion.

[Severe upper limb trauma related to escalator use. Pediatric case report].

Escalator-related injuries are rare but can be a medical emergency with potentially dangerous complications. The severe upper limb involvement related to injury occurred on an escalator is described. A two year-old patient suffered a fall going down an escalator; her left arm was caught between one of the steps and the comb of the last step.

[Hypopharyngeal injury due to displacement of brackets arch. Case report].

Involuntary ingestion or aspiration of a brace device and/ or orthodontic arch part can constitute a medical emergency with potentially dangerous complications. The objective of this communication is to describe a rare complication of posterior displacement and ingestion of the brace arch. A 13-year-old girl, suffers from a break in orthodontia during feeding, with the subsequent ingestion of part of it.

[Acute flaccid paralysis related to enterovirus with complete resolution of the neurological symptoms. A pediatric case report].

Since the wild poliovirus no longer circulates, the number of cases of acute flaccid paralysis decreased. However, cases related to non-polio enteroviruses and neurotrope viruses continue to occur. We present a nine-year-old patient with meningitis and myelitis with motor involvement in the lower limbs and neurogenic bladder associated with enterovirus, with complete resolution of the neurological symptoms following the administration of hyperimmune gammaglobulin.