Differential Diagnosis for Swollen Parotid Gland
- Single Most Likely Diagnosis
- Viral parotitis (mumps): This is the most common cause of swollen parotid glands, especially in children and young adults, due to its high prevalence and contagious nature.
- Other Likely Diagnoses
- Bacterial parotitis: This condition, often caused by Staphylococcus aureus, can lead to a swollen parotid gland, especially in the context of dehydration, poor oral hygiene, or recent surgery.
- Sialadenitis: Inflammation of the salivary gland, which can be caused by a variety of factors including infection, obstruction, or autoimmune disorders.
- Sjögren's syndrome: An autoimmune disorder that can cause inflammation and swelling of the parotid glands, among other symptoms.
- Do Not Miss Diagnoses
- Parotid gland tumor (benign or malignant): Although less common, tumors of the parotid gland can cause swelling and must be considered to avoid delayed diagnosis of a potentially life-threatening condition.
- Sarcoidosis: A systemic disease that can cause inflammation and swelling in various parts of the body, including the parotid glands, and requires prompt diagnosis and treatment.
- Rare Diagnoses
- Heerfordt's syndrome (uveoparotid fever): A rare form of sarcoidosis that affects the parotid gland, eyes, and sometimes the central nervous system.
- IgG4-related disease: A rare autoimmune disorder that can cause inflammation and swelling in various organs, including the parotid glands.
- Parotid gland abscess: A rare but serious condition that requires immediate medical attention to prevent complications.