Otitis Externa
Otitis externa is an inflammation of the external ear canal commonly caused by infection. It constitutes one of the most common otolaryngologic encounters in the emergency department. This condition is…
PEDIATRICS
Cervical Lymphadenitis
Cervical lymphadenopathy is enlargement of the lymph nodes in the neck. Cervical lymphadenitis implies one or more nodes are inflamed. The inflammatory response by the host is triggered by some…
Peritonsillar, Retropharyngeal, and Parapharyngeal Abscesses
Keywords deep neck space infection, peritonsillar abscess, retropharyngeal abscess, parapharyngeal abscess A deep neck abscess is a collection of pus in a potential space bounded by fascia. These potential…
Rhinosinusitis
Keywords Rhinosinusitis, sinusitis, upper respiratory tract infection, allergic inflammation, secondary bacterial infection, rhinitis, paranasal sinuses, respiratory allergies, defective ciliary function, immunodeficiency diseases, Haemophilus influenzae , Streptococcus pneumoniae , Moraxella catarrhalis…
Pharyngitis (Pharyngitis, Tonsillitis, Tonsillopharyngitis, and Nasopharyngitis)
Pharyngitis is an inflammatory illness of the mucous membranes and underlying structures of the throat. The clinical diagnostic category includes tonsillitis, tonsillopharyngitis, and nasopharyngitis; inflammation also frequently involves the uvula…
Epidemiology and Biostatistics of Infectious Diseases
Clinicians care for individual patients, each of whom has certain unique problems. Clinicians base their decisions on a panoply of factors that include features of the acute and chronic medical…
The Common Cold
The common cold is an acute, communicable, viral disease characterized by nasal stuffiness, sneezing, coryza, throat irritation, and no or minimal fever. Although the terms upper respiratory tract infection (URI)…
The Human Microbiome
Introduction The human microbiome consists of different microbial communities colonizing specific body sites ( Fig. 5.1 ) and fluctuating during several life stages. Because pediatrics is fundamentally oriented around the…
