Chronic hyponatremia based on maxillary sinus mass.
Darija TudorIva KolomboAna TotDrasko CikojevicMarko SimunovicVeselin SkrabicPublished in: Endocrinology, diabetes & metabolism case reports (2021)
Hyponatremia is not infrequently attributed to SIADH. Paraneoplastic syndromes are uncommon but they should be considered in the differential diagnosis of pediatric SIADH. Chronic insidious hyponatremia may not be associated with clear neurological symptoms despite its severity.