[Some differential considerations of OSAS in adults and children]. / Algunas consideraciones diferenciales del SAOS en adultos y niños.

Some respiratory troubles on childhood keep, comparatively with the same adult's pathology, certain peculiarities worth to know. This is the case of obstructive sleep apnea syndrome, which can suffer both children and adults, but with important etiopathogenical differences: clinical, and therapeutical between the two ages groups, which we must have in mind. Report of differential considerations between the 2 age-groups that we consider more relevants in this syndrome, that every time is more and more seen in clinical practice.

[Subacute necrotizing histiocytic lymphadenitis. An almost unknown condition]. / Linfadenitis histiocitaria necrotizante subaguda. Una entidad poco conocida.

The etiology of neck masses is multifactorial, including genetical troubles, infections or tumoral lesions. A detailed medical history and a thorough physical check-up with the aid of analyses and imaging pictures properly selected, provide the doctor with the needle information in order to establish a correct diagnosis (table 1). We present the case of a young woman with lateral neck and supraclavicular adenopathies which diagnosis although sporadic must be keep in mind in daily clinic owing its growing incidence in last years.

Otorhinolaryngologic manifestations in Chiari malformation.

The Chiari malformation causes herniation of the cerebellar amygdalae through the foramen magnum, resulting in the descent of the brain stem and/or traction on the lower cranial pairs. It is important for otolaryngologists to recognize Chiari malformations as part of the differential diagnosis of balance disorders, because patients may initially exhibit symptoms related to the vestibular system, including ataxia, nystagmus, or vertigo. We report 2 cases.