Acinic cell carcinoma of the salivary glands: an immunohistochemical study of angiogenesis in 12 cases.

Acinic cell carcinoma (ACC) is the third most common epithelial malignancy of the salivary glands in adults, exhibiting a low-grade malignancy that mainly occurs in the parotid gland and at a relatively younger age than other salivary gland tumors. We performed an immunohistochemically study regarding angiogenesis in ACC, by assessing the CD105+ tumor microvessels density and investigating the VEGF and its receptors VEGFR1 and VEGFR2 expression in tumor samples. The results indicated an active angiogenesis in ACC, with the highest CD105-MVD score recorded in the solid variant. This fact was supported by the reactivity of tumor cells and endothelial blood vessel cells for VEGF and its receptors (VEGFR1 and VEGFR2). Thus, we concluded that in ACC do exist autocrine and paracrine VEGF loops implicated in growth and progression of this kind of salivary gland tumors.

Acinic cell carcinoma of the salivary glands: a retrospective clinicopathologic study of 12 cases.

Acinic cell carcinoma (ACC) is the third most common epithelial malignancy of the salivary glands in adults, with a low-grade malignancy that mainly occurs in the parotid gland and at a relatively younger age than other salivary gland tumors. We made a retrospective study on our acinic cell carcinoma casuistry aiming their clinico-pathological characterization and comparison with literature data. From 2000 through 2011 in our hospital were diagnosed only 12 cases of ACC. The clinico-epidemiological study revealed prevalence of these tumors in women, in the fourth decade of life and especially occurring in the parotid gland. The most common morphologic pattern of these tumors was a mixture of two or more variants with the solid/lobular and microcystic patterns more frequent associated. In 75% of investigated cases, the pTNM stage was I/II, with no cases of perineural or vascular invasion, but with lymph node dissemination presented in only three cases. Summing all these clinicopathological features, we conclude that for our casuistry the biological behavior of these tumors has been of low-grade malignancy.

Recurrent intraoral HSV-1 infection: A retrospective study of 58 immunocompetent patients from Eastern Europe.

OBJECTIVES: To revise the clinical features of the recurrent intraoral herpetic infection (RIOH) with respect to precipitating factors, demographic, clinical features and outcome. STUDY DESIGN: Fifty-eight, unrelated Caucasian, immunocompetent patients with positive laboratory test for intraoral Herpes simplex virus infection were studied. RESULTS: The mean age in the women's group (n=42) was 41.23 years (± 21.73) and in the men's group was 32.25 years (±15.68). Possible trigger factors were identified in 9 cases (15.5%). General symptoms were noted in 20 cases (34.48%). Most of patients in this study presented multiple lesions. 14 patients had vermillion lesions associated with intraoral lesions. In most of the cases both fixed and mobile mucosa was concomitantly involved. Treatment was prescribed in order to control the symptoms and to shorten the evolution with minimal side effects. CONCLUSIONS: Intraoral secondary herpetic infection could be polymorphous and sometimes associated with general symptoms. The recognition of its atypical features may prevent unnecessary and costly investigations and treatments for unrelated though clinically similar-appearing disorders.

Primary herpetic gingivostomatitis in children and adults.

OBJECTIVES: To investigate if the onset of primary herpetic gingivostomatitis (PHG) is shifting toward an adult age and compare the clinical characteristics of PHG between children and adults. METHOD AND MATERIALS: The charts of patients diagnosed with PHG in an oral medicine clinic in Bucharest, Romania, over a 10-year period were revisited. Diagnosis was based on history, clinical data, and laboratory confirmation (Tzanck cytology, polymerase chain reaction [PCR], or immunofluorescence). Seventy-three cases (38 females, 35 males) were included. The age range was between 22 months and 53 years, with a mean age of 18.6 years. All patients were healthy with no suspicion of HIV infection or immunodeficiency. RESULTS: Nearly 48% (47.94%) of the sample were in the young adult group. General symptoms (fever, malaise, and lymphadenopathy) were equally present in children and adults. The most involved areas were the gingiva, vermilion border, and tongue. No differences in the extent of lesions were observed between children and adults. Inflammatory gingivitis and pharyngotonsillitis were more frequent in children than in adults although their frequency was less than expected. CONCLUSIONS: PHG was more frequently observed in young adults than in children. No significant differences between children and adults in the severity of infection were observed. Most of the patients presented widespread lesions.

Salivary gland Basal cell adenomas--immunohistochemical evaluation of four cases and review of the literature.

OBJECTIVE: Evaluate the antigen profile of cellular population from basal cell adenomas. MATERIAL AND METHODS: Histopathological and immunohistochemical evaluation of four-salivary gland basal cell adenomas; the pathological samples were provided by the Oral Maxilla Facial Surgery Department of the Clinical County Hospital from Craiova. RESULTS: All basal cell adenoma exhibit differentiation toward 3 cell phenotypes: ductal luminal, basal and myoepithelial. CONCLUSIONS: The antigen profile of these tumors closely regard with other variants of salivary gland adenomas, such as pleomorphic adenoma and myoepithelioma. So, we can conclude that these tumors had a common origin, most probably from intercalated ducts and the proportion of those 3 cellular types, their cytoarchitectural arrangements and the quantity of extracellular matrix production can do the differentiation between them.