Clinical presentation and diagnostics
The development of purulent inflammation in the parotid gland is accompanied by marked local and systemic changes.
Locally, noticeable edema of the soft palate and the lateral wall of the pharynx is observed. One of the most characteristic symptoms is trismus — the patient experiences severe difficulty when trying to open the mouth. This occurs because the inflammatory process and severe edema spread to the adjacent masticatory muscles.
In addition, neurological symptoms may be present in the clinical picture, primarily facial nerve (n. facialis) paresis. Laboratory diagnostics confirm the severity of the infectious process: blood tests reveal progressive leukocytosis with a left shift in the leukocyte formula (predominance of neutrophilic forms).
Natural course and complications
If the patient does not receive adequate and timely treatment, the inflammatory process progresses rapidly.
Stages of clinical deterioration:
- Purulent melting of a part of the parotid gland capsule occurs.
- Purulent exudate extends beyond the organ into the subcutaneous adipose tissue, leading to the formation of a phlegmon.
- Subsequently, the abscess may rupture through the skin outward, forming fistulae.
Abundant pus is discharged from the formed fistulous tracts. A characteristic feature of this discharge is the presence of sequestra — necrotic fragments of the gland parenchyma and capsule.
Surgical treatment: tactics and risks
The choice of treatment tactics directly depends on the form of parotitis, but surgical intervention is indicated in case of purulent melting. The main goal of the surgeon is the complete removal of formed sequestra and adequate drainage of the purulent cavity.
Surgical risks: Intervention on the parotid gland is associated with a high risk of developing paresis of the facial nerve (n. facialis) branches. Often, the cause of this complication is not direct transection, but overstretching of the nerve trunks during blunt expansion of the surgical wound.
Important warning: Incisions in the upper sections of the parotid gland, as well as in the zygomatic arch area, must be strictly avoided. It is in these anatomical zones that the branches of the facial nerve run most superficially and are most vulnerable.
Postoperative management and prognosis
The success of surgical treatment is consolidated by competent postoperative patient management.
- Pharmacotherapy: Systemic administration of antibiotics is strictly mandatory.
- Infusion therapy: Prescribed to patients with signs of dehydration to correct water and electrolyte balance.
- Diet: Liquid yet high-calorie food is indicated for the patient, as chewing function is impaired.
Prognosis: With early diagnosis and the appointment of rational antibiotic therapy, the prognosis is favorable — it is often possible to stop the process before the suppuration stage. If purulent parotitis has developed, timely and radical surgery under antibiotic coverage generally helps avoid severe complications.
Incision topography in purulent processes of the maxillofacial region
The localization of the pathological process strictly determines the site and direction of the surgical incision on the face and head. In addition to purulent parotitis, the following conditions occur in this area:
- Zygomatic region phlegmon
- Buccal fat pad phlegmon
- Submasseteric phlegmon
- Infraorbital phlegmon
- Retromandibular fossa phlegmon
- Submandibular phlegmon
- Orbital phlegmon
- Temporal fossa phlegmon
- Subaponeurotic phlegmon of the scalp
Each of these pathologies requires a specific surgical approach that minimizes the risk of neurovascular bundle damage.
Class and exam questions
Why is it difficult for a patient with purulent parotitis to open their mouth?
This phenomenon is called trismus. It arises due to the spread of severe inflammation and edema from the parotid gland to the adjacent masticatory muscles.
Where are incisions strictly not recommended in parotitis?
Incisions near the zygomatic arch and in the upper sections of the parotid gland should be avoided, as the branches of the facial nerve run superficially there.
What does pus contain in advanced purulent parotitis?
The discharge is abundant pus containing sequestra — fragments of necrotic parenchyma and salivary gland capsule.
What else to study on this topic
- Topographic anatomy of the facial nerve in the parotid salivary gland
- Differential diagnosis of purulent parotitis and submasseteric phlegmon
- Principles of wound drainage in the maxillofacial region
- Buccal fat pad phlegmon: etiology and surgical approaches
- Submandibular phlegmon and retromandibular fossa phlegmon
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Other topics from the section "CHAPTER 11. SURGICAL INFECTION (PURULENT-INFLAMMATORY DISEASES)"
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