Parotitis

Updated: May 15, 2024

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Background

Parotitis is a condition characterized by inflammation of the parotid gland, which is a large salivary gland located on either side of the face, just in front of the ears. It can be caused by various factors like bacterial or viral infections, autoimmune diseases, or blockage of the salivary ducts.

The most common cause of parotitis is a viral infection, such as mumps, which can cause inflammation of the parotid gland. Other viral infections that can cause parotitis include influenza, parainfluenza, and cytomegalovirus. Bacterial infections, such as Staphylococcus aureus or Streptococcus pneumoniae, can also cause parotitis, particularly in older adults or those with weakened immune systems.

In addition to infections, parotitis can also be caused by autoimmune diseases, such as Sjögren’s syndrome, which can cause inflammation and damage to the salivary glands. Blockage of the salivary ducts, which can occur due to the presence of salivary stones or tumors, can also lead to parotitis.

Symptoms of parotitis may include pain, swelling, and tenderness in the affected gland, as well as fever, chills, and difficulty opening the mouth or swallowing. Treatment may involve antibiotics, anti-inflammatory medications, or in more severe cases, drainage of the infected gland.

Epidemiology

The incidence and prevalence of parotitis depend on the underlying cause of the inflammation. Viral parotitis, such as mumps, is highly contagious and can cause outbreaks, particularly in areas with low vaccination rates. The incidence of mumps has decreased significantly with the introduction of the measles-mumps-rubella (MMR) vaccine, which is recommended for all children and adults who have not previously been vaccinated.

Bacterial parotitis is less common than viral parotitis and typically occurs in older adults or those with weakened immune systems. The incidence of bacterial parotitis has been reported to be as high as 40% in hospitalized patients with underlying medical conditions.

Autoimmune parotitis, such as Sjögren’s syndrome, is a relatively rare condition that primarily affects women, with a male-to-female ratio of approximately 1:9. The prevalence of Sjögren’s syndrome is estimated to be between 0.2% and 1.0% in the general population, with a higher incidence in women over the age of 50.

Overall, the incidence and prevalence of parotitis vary depending on the underlying cause and population demographics, and early diagnosis and treatment are important to prevent complications and improve outcomes.

Anatomy

Pathophysiology

In viral parotitis, such as mumps, the virus primarily targets the salivary glands, particularly the parotid gland, causing inflammation and swelling. This inflammatory response can result in blockage of the salivary ducts, which can lead to pain, swelling, and tenderness in the affected gland. Bacterial parotitis can occur when bacteria enter the salivary gland through the ducts, leading to infection and inflammation.

In autoimmune parotitis, such as Sjögren’s syndrome, the immune system mistakenly attacks the salivary glands, causing inflammation and damage. This inflammatory response can lead to decreased saliva production, dry mouth, and an increased risk of infection.

Blockage of the salivary ducts can also cause inflammation of the parotid gland, as the trapped saliva can provide a breeding ground for bacteria and viruses, leading to infection and inflammation.

Overall, the pathophysiology of parotitis involves inflammation of the parotid gland, which can be triggered by a variety of factors and can lead to pain, swelling, and tenderness in the affected gland.

 

Etiology

The etiology of parotitis can vary depending on the underlying cause of the inflammation. Viral parotitis is typically caused by the mumps virus, which is highly contagious and spreads through respiratory droplets or direct contact with infected saliva. Other viruses, such as the flu, Epstein-Barr virus, and Coxsackie virus, can also cause viral parotitis.

Bacterial parotitis is often caused by Staphylococcus aureus, which can enter the salivary gland through the ducts, leading to infection and inflammation. Other bacteria, such as Streptococcus species, can also cause bacterial parotitis.

Autoimmune parotitis, such as Sjögren’s syndrome, is caused by an autoimmune response in which the immune system mistakenly attacks the salivary glands, causing inflammation and damage.

Blockage of the salivary ducts can also cause parotitis, as the trapped saliva can lead to infection and inflammation. This can be caused by various factors like dehydration, poor oral hygiene, medications that decrease saliva production, or the presence of a salivary gland stone.

Genetics

Prognostic Factors

The prognosis for parotitis may vary depending on the cause and severity of the inflammation. In cases of viral parotitis, such as mumps, the prognosis is generally good, with most patients recovering fully within a few weeks to months. However, in rare cases, complications such as meningitis, encephalitis, or orchitis can occur, which can lead to long-term complications.

In bacterial parotitis, the prognosis is generally good with appropriate antibiotic therapy. However, in cases of severe infection, complications such as abscess formation, sepsis, or necrotizing fasciitis can occur, which can be life-threatening.

In autoimmune parotitis, such as Sjögren’s syndrome, the prognosis is generally fair, with the management of symptoms and prevention of complications being the primary goal of treatment.

 

Clinical History

According to the clinical study published in the Journal of Oral and Maxillofacial Surgery investigated the clinical and microbiological aspects of bacterial parotitis. The study included 32 patients diagnosed with acute bacterial parotitis, who were evaluated for clinical signs and symptoms, as well as microbiological analysis of the causative organisms.

The results showed that Staphylococcus aureus was the most common causative organism, followed by Streptococcus species. The majority of patients responded well to antibiotic therapy, with the resolution of symptoms within a few days to a week.

The study also identified risk factors for the development of bacterial parotitis, including older age, dehydration, poor oral hygiene, and immunosuppression. The authors suggested that early diagnosis and treatment are important for improving outcomes and preventing complications, such as abscess formation or sepsis.

Physical Examination

A physical examination for parotitis typically begins with a comprehensive evaluation of the patient’s head and neck, with a focus on the salivary glands. The healthcare provider may palpate the parotid gland, located in front of the ear, to assess for swelling, tenderness, or other signs of inflammation.

The provider may also evaluate the patient’s oral cavity and mucosa for signs of infection, such as redness or ulceration. In cases of chronic parotitis, the provider may assess for the presence of salivary gland stones, which can block the flow of saliva and lead to inflammation.

Diagnostic imaging, such as ultrasound or computed tomography (CT), may be used to evaluate the extent of glandular inflammation or the presence of abscesses or other complications.

In addition to a physical examination, the healthcare provider may also obtain a medical history, including any recent illnesses or medications, history of immunosuppression, and risk factors for infection or inflammation. A thorough physical examination is important for accurate diagnosis and appropriate management of parotitis.

Age group

Associated comorbidity

Associated activity

Acuity of presentation

Differential Diagnoses

The differential diagnosis for parotitis includes a variety of conditions that can cause inflammation and swelling of the parotid gland. These include:

  • Viral parotitis (mumps)
  • Sjogren’s syndrome
  • Salivary gland tumors
  • Lymphoma
  • Autoimmune disorders such as sarcoidosis
  • Bacterial parotitis
  • Granulomatous diseases such as tuberculosis and syphilis
  • Allergic reactions to medications or other substances
  • Trauma or injury to the parotid gland
  • Radiation therapy to the neck and head region

Laboratory Studies

Imaging Studies

Procedures

Histologic Findings

Staging

Treatment Paradigm

The treatment for parotitis depends on the underlying cause of the condition. In cases of bacterial parotitis, antibiotics are typically prescribed to control the infection. Pain management and hydration are also important components of treatment.

For chronic or recurrent cases of parotitis, the underlying cause may need to be addressed. For example, if salivary gland stones are present, they may need to be removed to prevent blockages and inflammation. In cases of autoimmune parotitis, immunosuppressive therapy may be necessary.

Surgery may also be necessary in cases of severe or recurrent parotitis, or in cases where there is a risk of complications such as abscess formation or glandular necrosis.

In addition to medical treatments, supportive measures such as warm compresses and hydration can help alleviate symptoms and promote healing. Overall, the treatment for parotitis is individualized depending on the cause and its severity.

by Stage

by Modality

Chemotherapy

Radiation Therapy

Surgical Interventions

Hormone Therapy

Immunotherapy

Hyperthermia

Photodynamic Therapy

Stem Cell Transplant

Targeted Therapy

Palliative Care

Medication

Media Gallary

References

https://www.ncbi.nlm.nih.gov/books/NBK560735/#article-26692.s8

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Parotitis

Updated : May 15, 2024

Mail Whatsapp PDF Image



Parotitis is a condition characterized by inflammation of the parotid gland, which is a large salivary gland located on either side of the face, just in front of the ears. It can be caused by various factors like bacterial or viral infections, autoimmune diseases, or blockage of the salivary ducts.

The most common cause of parotitis is a viral infection, such as mumps, which can cause inflammation of the parotid gland. Other viral infections that can cause parotitis include influenza, parainfluenza, and cytomegalovirus. Bacterial infections, such as Staphylococcus aureus or Streptococcus pneumoniae, can also cause parotitis, particularly in older adults or those with weakened immune systems.

In addition to infections, parotitis can also be caused by autoimmune diseases, such as Sjögren’s syndrome, which can cause inflammation and damage to the salivary glands. Blockage of the salivary ducts, which can occur due to the presence of salivary stones or tumors, can also lead to parotitis.

Symptoms of parotitis may include pain, swelling, and tenderness in the affected gland, as well as fever, chills, and difficulty opening the mouth or swallowing. Treatment may involve antibiotics, anti-inflammatory medications, or in more severe cases, drainage of the infected gland.

The incidence and prevalence of parotitis depend on the underlying cause of the inflammation. Viral parotitis, such as mumps, is highly contagious and can cause outbreaks, particularly in areas with low vaccination rates. The incidence of mumps has decreased significantly with the introduction of the measles-mumps-rubella (MMR) vaccine, which is recommended for all children and adults who have not previously been vaccinated.

Bacterial parotitis is less common than viral parotitis and typically occurs in older adults or those with weakened immune systems. The incidence of bacterial parotitis has been reported to be as high as 40% in hospitalized patients with underlying medical conditions.

Autoimmune parotitis, such as Sjögren’s syndrome, is a relatively rare condition that primarily affects women, with a male-to-female ratio of approximately 1:9. The prevalence of Sjögren’s syndrome is estimated to be between 0.2% and 1.0% in the general population, with a higher incidence in women over the age of 50.

Overall, the incidence and prevalence of parotitis vary depending on the underlying cause and population demographics, and early diagnosis and treatment are important to prevent complications and improve outcomes.

In viral parotitis, such as mumps, the virus primarily targets the salivary glands, particularly the parotid gland, causing inflammation and swelling. This inflammatory response can result in blockage of the salivary ducts, which can lead to pain, swelling, and tenderness in the affected gland. Bacterial parotitis can occur when bacteria enter the salivary gland through the ducts, leading to infection and inflammation.

In autoimmune parotitis, such as Sjögren’s syndrome, the immune system mistakenly attacks the salivary glands, causing inflammation and damage. This inflammatory response can lead to decreased saliva production, dry mouth, and an increased risk of infection.

Blockage of the salivary ducts can also cause inflammation of the parotid gland, as the trapped saliva can provide a breeding ground for bacteria and viruses, leading to infection and inflammation.

Overall, the pathophysiology of parotitis involves inflammation of the parotid gland, which can be triggered by a variety of factors and can lead to pain, swelling, and tenderness in the affected gland.

 

The etiology of parotitis can vary depending on the underlying cause of the inflammation. Viral parotitis is typically caused by the mumps virus, which is highly contagious and spreads through respiratory droplets or direct contact with infected saliva. Other viruses, such as the flu, Epstein-Barr virus, and Coxsackie virus, can also cause viral parotitis.

Bacterial parotitis is often caused by Staphylococcus aureus, which can enter the salivary gland through the ducts, leading to infection and inflammation. Other bacteria, such as Streptococcus species, can also cause bacterial parotitis.

Autoimmune parotitis, such as Sjögren’s syndrome, is caused by an autoimmune response in which the immune system mistakenly attacks the salivary glands, causing inflammation and damage.

Blockage of the salivary ducts can also cause parotitis, as the trapped saliva can lead to infection and inflammation. This can be caused by various factors like dehydration, poor oral hygiene, medications that decrease saliva production, or the presence of a salivary gland stone.

The prognosis for parotitis may vary depending on the cause and severity of the inflammation. In cases of viral parotitis, such as mumps, the prognosis is generally good, with most patients recovering fully within a few weeks to months. However, in rare cases, complications such as meningitis, encephalitis, or orchitis can occur, which can lead to long-term complications.

In bacterial parotitis, the prognosis is generally good with appropriate antibiotic therapy. However, in cases of severe infection, complications such as abscess formation, sepsis, or necrotizing fasciitis can occur, which can be life-threatening.

In autoimmune parotitis, such as Sjögren’s syndrome, the prognosis is generally fair, with the management of symptoms and prevention of complications being the primary goal of treatment.

 

According to the clinical study published in the Journal of Oral and Maxillofacial Surgery investigated the clinical and microbiological aspects of bacterial parotitis. The study included 32 patients diagnosed with acute bacterial parotitis, who were evaluated for clinical signs and symptoms, as well as microbiological analysis of the causative organisms.

The results showed that Staphylococcus aureus was the most common causative organism, followed by Streptococcus species. The majority of patients responded well to antibiotic therapy, with the resolution of symptoms within a few days to a week.

The study also identified risk factors for the development of bacterial parotitis, including older age, dehydration, poor oral hygiene, and immunosuppression. The authors suggested that early diagnosis and treatment are important for improving outcomes and preventing complications, such as abscess formation or sepsis.

A physical examination for parotitis typically begins with a comprehensive evaluation of the patient’s head and neck, with a focus on the salivary glands. The healthcare provider may palpate the parotid gland, located in front of the ear, to assess for swelling, tenderness, or other signs of inflammation.

The provider may also evaluate the patient’s oral cavity and mucosa for signs of infection, such as redness or ulceration. In cases of chronic parotitis, the provider may assess for the presence of salivary gland stones, which can block the flow of saliva and lead to inflammation.

Diagnostic imaging, such as ultrasound or computed tomography (CT), may be used to evaluate the extent of glandular inflammation or the presence of abscesses or other complications.

In addition to a physical examination, the healthcare provider may also obtain a medical history, including any recent illnesses or medications, history of immunosuppression, and risk factors for infection or inflammation. A thorough physical examination is important for accurate diagnosis and appropriate management of parotitis.

The differential diagnosis for parotitis includes a variety of conditions that can cause inflammation and swelling of the parotid gland. These include:

  • Viral parotitis (mumps)
  • Sjogren’s syndrome
  • Salivary gland tumors
  • Lymphoma
  • Autoimmune disorders such as sarcoidosis
  • Bacterial parotitis
  • Granulomatous diseases such as tuberculosis and syphilis
  • Allergic reactions to medications or other substances
  • Trauma or injury to the parotid gland
  • Radiation therapy to the neck and head region

The treatment for parotitis depends on the underlying cause of the condition. In cases of bacterial parotitis, antibiotics are typically prescribed to control the infection. Pain management and hydration are also important components of treatment.

For chronic or recurrent cases of parotitis, the underlying cause may need to be addressed. For example, if salivary gland stones are present, they may need to be removed to prevent blockages and inflammation. In cases of autoimmune parotitis, immunosuppressive therapy may be necessary.

Surgery may also be necessary in cases of severe or recurrent parotitis, or in cases where there is a risk of complications such as abscess formation or glandular necrosis.

In addition to medical treatments, supportive measures such as warm compresses and hydration can help alleviate symptoms and promote healing. Overall, the treatment for parotitis is individualized depending on the cause and its severity.

https://www.ncbi.nlm.nih.gov/books/NBK560735/#article-26692.s8

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