The ethmoid and the maxillary sinus

The ethmoid and the maxillary sinuses form in the third to fourth gestational month and, accordingly, are present at birth. The sphenoid sinuses are generally pneumatized by 5 years of age; the frontal sinuses appear at age 7 to 8 years but are not completely developed until late adolescence. The paranasal sinuses are a common site of infection in children and adolescents.1 These infections are important as a cause of frequent morbidity and rarely may result in life-threatening complications. It may be difficult to distinguish children with uncomplicated viral upper respiratory infections or adenoiditis from those with an episode of acute bacterial sinusitis.2 Most viral infections of the upper respiratory tract involve the nose and the paranasal sinuses (viral rhinosinusitis).3 However, bacterial infections of the paranasal sinuses do not usually involve the nose. When the patient with bacterial infection of the paranasal sinuses has purulent (thick, colored, and opaque) nasal drainage, the site of infection is the paranasal sinuses; the nose is simply acting as a conduit for secretions produced in the sinuses.

ผลลัพธ์ (แอฟริกา) 1:

Die fetralied en die maksillêre sinusse vorm in die derde en vierde swangerskap maand en, dienooreenkomstig, teenwoordig is by geboorte. Die sfenoid sinusse is oor die algemeen pneumatized met 5 jaar oud is; die frontale sinusse verskyn op die ouderdom van 7-8 jaar, maar is heeltemal ontwikkel nie tot laat adolessensie. Die sinusse is 'n algemene terrein van infeksie in kinders en adolescents.1 Hierdie infeksies is belangrik as 'n oorsaak van die gereelde morbiditeit en selde kan lei tot lewensgevaarlike komplikasies. Dit kan moeilik wees om kinders met eenvoudige virale boonste respiratoriese infeksies of adenoiditis van diegene met 'n episode van akute bakteriële sinusitis.2 meeste virale infeksies van die boonste lugweë betrek die neus en die paranasale sinusse (virale rhinosinusitis) 0,3 tot egter onderskei, bakteriële. infeksies van die sinusse behels gewoonlik nie die neus. Wanneer die pasiënt met bakteriële infeksie van die sinusse het purulente (dik, bruin, en ondeursigtig) nasale dreinering, die terrein van infeksie is die sinusse; Die neus is net optree as 'n kanaal vir die sekrete wat in die sinusse.