H75.02

Clinical Causes: Middle ear infections (otitis media) that spread to the mastoid bone Bacterial infections, such as Streptococcus or Staphylococcus species Viral infections that weaken immune defenses Immune system deficiencies increasing susceptibility to infections Obstruction of the Eustachian tube, leading to fluid buildup in the middle ear Previous ear surgery or trauma to the area

Key Symptoms: Pain behind the left ear, which may worsen with movement Swelling and redness over the mastoid bone behind the ear Tenderness when touching the area behind the ear Fever and general feeling of illness Ear discharge or pus if the infection breaches the ear canal Hearing loss in the affected ear Headache and discomfort around the affected area Signs of infection spreading, such as chills or facial weakness

Diagnosis Path: Medical professionals typically diagnose mastoiditis through a physical examination, during which they examine the ear and the area behind it for redness, swelling, and tenderness. Imaging tests, such as CT scans, are often used to assess the extent of infection within the mastoid bone and to rule out other conditions. Ear cultures may also be performed to identify the bacteria causing the infection, guiding appropriate treatment.

Treatment Protocols: Treatment strategies for mastoiditis aim to eradicate the infection and prevent complications. Common approaches include: - Antibiotic therapy to target the underlying bacterial infection - Surgical intervention, such as mastoidectomy, may be necessary to remove infected tissue if antibiotics alone are insufficient - Pain management with medications as prescribed by a healthcare provider - Supportive care, including rest and hydration - Close follow-up to monitor response to treatment and prevent recurrence Early treatment is crucial to avoid serious complications, such as the spread of infection to nearby structures or the development of brain abscesses.