[Adipocytic tumors of the salivary glands: A retrospective study]. / Tumeurs adipeuses des glandes salivaires: étude rétrospective.

INTRODUCTION: Adipocytic tumors are the most common soft tissue mesenchymal tumors. Their occurrence in salivary glands is rare. We studied the epidemiology, the diagnostic and the therapeutic features of the salivary adipocytic tumors followed in our department. PATIENTS AND METHODS: A retrospective study was conducted in our department between January 1997 and December 2011. Nine cases of adipocytic tumors of the salivary glands were found. Data were collected from medical records and processed by Excel. RESULTS: Mean age was 44 with a clear predominance of males (sex ratio: 3.5). In 8 cases the tumors were benign (7 lipomas and 1 lipofibroma). The only malignant tumor was a metastatic myxoid liposarcoma. Parotid was the main location (8 cases/9). Ultrasonography and MRI were prescribed. The treatment was tumor and parotid gland removal with conservation of the facial nerve excepted in the malignant case. One transient facial palsy, two earlobe dysesthesia and one retromandibular depression were observed. No recurrence was noted. DISCUSSION: Our study confirmed the epidemiological profile of these adipocytic salivary gland tumors, which are rarely observed, but mainly in the parotid gland. They are often benign and lipoma is the main histological type.

[Eosinophilic granuloma or aggressive periodontitis?]. / Granulome éosinophile ou parodontite agressive ?

INTRODUCTION: Eosinophilic granuloma in the jawbones can be confused with aggressive periodontitis or more rarely with inflammatory lesions of dental origin. We had for objective to analyze the various elements of clinical, radiological, and pathological differential diagnosis for this rare lesion through a clinical observation. CASE REPORT: A 26-year-old male patient consulted for loose teeth and gingivitis. The initial diagnosis was aggressive periodontitis. The ineffective periodontal treatment suggested another diagnosis, eosinophilic granuloma, requiring tooth extraction and curettage. A histological analysis confirmed the diagnosis. Bone scintigraphy revealed a second focus on the left maxilla. Complementary chemotherapy was efficient on the mandibular site but failed to prevent worsening on the maxilla, which was treated surgically. Thirty months after, the patient's condition was stable. DISCUSSION: The diagnosis of eosinophilic granuloma is difficult and relies on histology and immunolabelling with protein S100 and antigen CD1a. Treatment is surgery and conservative in case of isolated lesions.

[Jaw muscle tumors]. / Tumeurs musculaires des mâchoires.

Muscular tumors are rare. They hardly ever present in jaws. Rhabdomyoma have never been reported in this localization. Clinical and radiological features are non-specific. The diagnosis is based on histopathological features. It is difficult to make for leiomyosarcoma. Surgical excision is the recommended treatment, conservative for leiomyoma, radical for other malignant tumors. Rhabdomyosarcoma has a good prognosis unlike leiomyosarcoma.

[Nasolabial cyst]. / Kyste nasolabial.

Nasolabial cyst is a rare epithelial and non-odontogenic cyst of the jaw. It is situated behind the ala nasi, extending backwards into the inferior nasal meatus and forward into the labio-gingival sulcus. Predominant symptoms are swelling of the nasal vestibule, local pain, and nasal obstruction. Radiology is not specific and CT scan may be contributive. Surgical excision is the first line treatment; it proves the diagnosis and prevents recurrence.

[Desmoplastic fibroma]. / Fibrome desmoïde.

Desmoplastic fibroma is a rare benign intraosseous neoplasms. They can affect the jaw. Posterior mandibular bone involvement is the most frequent localization. They are locally aggressive and recurrence is frequent. Radioclinical signs are not specific and the histological diagnosis may be difficult. Extended surgical removal is the recommended treatment.