[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-533609-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-533609-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","acute-mastoiditis-clinical-diagnosis-and-treatment","Acute Mastoiditis - Clinical Diagnosis and Treatment","","Acute mastoiditis is a suppurative complication of acute otitis media, presenting with fever, ear pain, postauricular erythema and tenderness, and displacement of the auricle. The mastoid air cells connect to the middle ear, enabling spread of infection and outward or vertical auricle displacement; the tympanic membrane may be obscured by external canal swelling. Diagnosis is often clinical, with CT/MRI reserved for unclear cases or suspected complications; treatment requires intravenous antibiotics and drainage via tympanostomy or mastoidectomy.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/healthcare/","Healthcare",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/acute-mastoiditis-clinical-diagnosis-and-treatment/533609/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/acute-mastoiditis-clinical-diagnosis-and-treatment/533609.png","ImageObject",300,407,{"name":42,"@type":43},"ahduag","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-02","2026-10-10",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",6,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What symptoms and signs suggest acute mastoiditis in a child?","Question",{"text":63,"@type":64},"Acute mastoiditis commonly presents with fever and ear pain plus postauricular erythema and tenderness, a protruded auricle, and displacement of the external ear. The tympanic membrane may show acute otitis media findings or may be hard to visualize due to external canal swelling.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"When is imaging (CT or MRI) indicated for suspected acute mastoiditis?",{"text":68,"@type":64},"Imaging is indicated when the diagnosis is unclear, when further complications are suspected (such as meningitis or neurologic deficits), when the child appears toxic, or when the condition does not respond to initial treatment.",{"name":70,"@type":61,"acceptedAnswer":71},"How is acute mastoiditis treated?",{"text":72,"@type":64},"Treatment requires intravenous antibiotic therapy and drainage of purulent material. Drainage can be performed via tympanostomy (± ear tube placement) or mastoidectomy.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},533609,1792204211,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,105,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & 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ValuesNotesCalculatorReverse ColorText Zoom  \nA 20-month-old girl is brought to the office due to fever and fussiness for the past 5 days.She has been less playful than usual and is not eatingwell today.The patient has had several episodes of acute otitis media in the last year,all of which resolved with oral antibiotics.Temperature is  \n38.6 C(101.5 F),blood pressure is 100/60 mm Hg,and pulse is 120/min.Examination of the right ear reveals a protruded auricle with tendernessand swelling behind the ear.Otoscopy reveals narrowing of the external ear canal;the tympanic membrane cannot be seen.Left ear examinationis normal.Which of the following is the most likely diagnosis?○ A.Acute mastoiditis○ B.Cholesteatoma○ C.Necrotizing otitis externa○ D.Parotitis○ E.Perichondritis  \nSubmit  \nSettings  \n1 of 40tion ld:2832Mark卡AAAPreviousNextExit ModeTutorialLab ValuesNotesCalculatorReverse Color Text Zoom  \n三×  \nThis febrile child with a bulging tympanic membrane,mastoid (eg,behind the ear)tenderness,and displacement of the external ear likely hasacute mastoiditis,the most common suppurative complication of acute otitis media (AOM).The mastoid air cells are in continuity with the middleear,allowing spread of the infection.In addition to the symptoms of fever and ear pain seen in AOM,infection of the mastoid causes erythemaand tender swelling,which can result in outward and/or vertical displacement of the auricle.The tympanic membrane may show evidence ofAOM(eg,erythema,bulging,perforation)or may not be visible due to swelling of the external auditory canal.  \nAs with AOM,mastoiditis is most commonly seen in children age ≤2 and is commonly caused by Streptococcus pneumoniae,Streptococcuspyogenes,and Staphylococcus aureus.Pseudomonas aeruginosa has occasionally been implicated,especially in patients with recurrentinfections or recent antibiotic use.  \nAcute mastoiditis can often be diagnosed clinically.Imaging(eg,CT scan,MRI)is indicated if the diagnosis is unclear,if there is suspicion forfurther complications (eg,meningitis,neurologic deficits),if the child appears toxic,or if the condition does not respond to initial treatment.Treatment of mastoiditis requires intravenous antibiotic therapy.Drainage of the purulent material is also required.This can be achieved by  \nSettings  \n\n| 三   | ×   | 1 of 40  \u003Cbr>tion Id:2832   | Mark   | Next  \u003Cbr>Previous   | 卡  \u003Cbr>②  \u003Cbr>Exit Mode  \u003Cbr>Notes  \u003Cbr>Tutorial  \u003Cbr>Lab Values   | □□□□  \u003Cbr>Calculator  \u003Cbr>Reverse Color    | AAA  \u003Cbr>Text Zoom   | ☆  \u003Cbr>Settings   |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  |  |  | ·Inflammation &accumulation of purulent  \u003Cbr>material within mastoid air cells   |  | ·Postauricular erythema &tenderness  \u003Cbr>·Protrusion of outer ear   |  |  |  |\n| UWorld   |  |  |  |  |  |  |  |  |\n\nThis febrile child with a bulging tympanic membrane,mastoid (eg,behind the ear)tenderness,and displacement of the external ear likely hasacute mastoiditis,the most common suppurative complication of acute otitis media (AOM).The mastoid air cells are in continuity with the middleear,allowing spread of the infection.In addition to the symptoms of fever and ear pain seen in AOM,infection of the mastoid causes erythemaand tender swelling,which can result in outward and/or vertical displacement of the auricle.The tympanic membrane may show evidence ofAOM(eg,erythema,bulging,perforation)or may not be visible due to swelling of the external auditory canal.  \nAs with AOM,mastoiditis is most commonly seen in children age ≤2 and is commonly caused by Streptococcus pneumoniae,Streptococcuspyogenes,and Staphylococcus aureus.Pseudomonas aeruginosa has occasionally been implicated,especially in patients with recurrentinfections or recent antibiotic use.  \nAcute mastoiditis can often be diagnosed clinically.Imaging(eg,CT scan,MRI)is indicated iif the diagnosis is unclear,if there is suspicionn forfurthe","cbCailiBrKIHWmth","https://ap.wps.com/l/cbCailiBrKIHWmth","pdf",43097028,150,"English","# Diagnosis\n## Clinical features\n## Role of imaging\n# Treatment\n## Antibiotics and drainage\n# Differential diagnosis\n## Cholesteatoma\n## Necrotizing otitis externa\n## Parotitis\n## Perichondritis","[{\"question\":\"What symptoms and signs suggest acute mastoiditis in a child?\",\"answer\":\"Acute mastoiditis commonly presents with fever and ear pain plus postauricular erythema and tenderness, a protruded auricle, and displacement of the external ear. The tympanic membrane may show acute otitis media findings or may be hard to visualize due to external canal swelling.\"},{\"question\":\"When is imaging (CT or MRI) indicated for suspected acute mastoiditis?\",\"answer\":\"Imaging is indicated when the diagnosis is unclear, when further complications are suspected (such as meningitis or neurologic deficits), when the child appears toxic, or when the condition does not respond to initial treatment.\"},{\"question\":\"How is acute mastoiditis treated?\",\"answer\":\"Treatment requires intravenous antibiotic therapy and drainage of purulent material. Drainage can be performed via tympanostomy (± ear tube placement) or mastoidectomy.\"}]","Acute Mastoiditis - Clinical Diagnosis and Treatment | PDF",1791593191,378]