Abstract
ABSTRACT The present report aimed to describe the main characteristics of the parotid salivary mucocele in an adult male rabbit, which presented with a painless fluctuating mass with fluid content. Owing to the need for repeated fluid drainage, surgical excision was the chosen mode of treatment. Preoperative evaluation included radiography and blood analysis. The patient underwent surgical excision of the affected gland. Inhalation anesthesia was maintained by means of isoflurane and the cardio-respiratory parameters were monitored throughout the surgery. A bipolar electrocautery was used to assist in the incision and polyglactin 910 and nylon were the suture materials used in the wound closure technique. Post-operative medications included analgesics, anti-inflammatory agents and antibiotics. Histopathology of the excised glandular tissue revealed a mixed inflammatory infiltrate, fibroblasts, hemorrhage and hyperemia. The observations in this case suggest that surgical excision of the affected gland is the treatment of choice for the management of mucocele in companion rabbits, which has already been identified for other animals. Periodic acid-reactive Schiff staining confirmed the diagnosis of salivary mucocele. The complementary investigations helped to rule out the differential diagnosis and indicated a favorable prognosis, in view of the fact that the case was successfully resolved without complications or recurrence.
Highlights
Salivary mucocele is one of the most common causes of submandibular gland enlargement, in addition to other factors like sialolithiasis, sialadenitis or neoplasia (Spangler and Culbertson, 1991)
The current case report did not elucidate any causative factor for the disease, which corroborates the fact that it may be difficult to establish the etiology of salivary mucocele (Spangler and Culbertson, 1991)
Foreign bodies and trauma are believed to be among the main causes of salivary mucocele and relevant causative factors include surgical trauma and trauma ensuing from the continuous use of collars and biting (Spangler and Culbertson, 1991; Ritter et al, 2006)
Summary
Salivary mucocele is one of the most common causes of submandibular gland enlargement, in addition to other factors like sialolithiasis, sialadenitis or neoplasia (Spangler and Culbertson, 1991). It often presents as a painless benign cystic disorder, characterized by the collection of mucoid saliva in the soft tissue spaces adjacent to the gland, subsequent to an inflammation or injury (Spangler and Culbertson, 1991; Ritter et al, 2006). The aim of the current study was to describe a case of salivary mucocele in a companion rabbit, highlighting the main clinical and laboratory features of the disease, as well as the surgical treatment and recovery of the patient
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