RÉSUMÉ
Introduction: Basal cell adenocarcinoma is a rare well recognized low grade malignant salivary gland tumor often resembles basal cell adenoma. the infiltrating growth pattern and likelihood of vascular and perineural involvement distinguishes basal cell adenocarcinoma with basal cell adenoma. Case presentation: Here we present histopathological and immune histochemical analysis of two such rare cases of basal cell adenocarcinoma and review of literature is discussed. Conclusion: Basal cell adeno carcinoma is a low grade malignancy and doesn’t metastasize. With only few hundreds of cases that has been reported in literature, basal cell adeno carcinoma should be included as differential diagnosis in salivary gland tumors in order not to miss the diagnosis
RÉSUMÉ
@#Basal cell adenocarcinoma (BCAC) is a very rare slow-growing malignant basaloid tumour of the minor salivary gland. We reported a case of BCAC of the minor salivary gland of the hard palate occurring in a 56-year-old man. BCAC shares overlapping histopathological features with the other oral basaloid cell neoplasms which carries different prognosis and treatment modality. We emphasised on the histomorphologic features and the role of immunohistochemistry panel in the differential diagnosis of BCAC in incisional biopsies.
RÉSUMÉ
Dominated by basaloid epithelial cells, basal cell adenocarcinoma is cytologically and histomorphologically similar to basal cell adenoma but is an infiltrative epithelial neoplasm with potential for metastasis. There is no sex predilection. The average age of patients is 60 years. over 90%, of these tumors occur in the parotid gland, and they are rare in the minor salivary glands of theoral cavity. Infiltration of tumor cells into the capsule, salivary gland parenchyma, dermis, skeletal muscle, or periglandular fat distinguishes basal cell adenocarcinoma from basal cell adenoma. We have reported here a case of basal cell adenocarcinoma of the parotid gland in a male patient aged 45 years.
RÉSUMÉ
Synchronous parotid neoplasms are rare cases. In particular, a synchronous neoplasm of two histologically different types is extremely unusual. A review of other references show that most cases of synchronous neoplasms are compounds of two distinct benign neoplasms or that of one benign neoplasm and other malignant tumor. To date, there are no reports about synchronous unilateral double primary carcinomas of the parotid gland. Here, we report a 39-year-old woman who developed the basal cell adenocarcinoma and the mucoepidermoid carcinoma simultaneously in the left parotid gland.
Sujet(s)
Adulte , Femelle , Humains , Adénocarcinome , Carcinome mucoépidermoïde , Tumeurs primitives multiples , Glande parotide , Tumeurs de la parotideRÉSUMÉ
Basal cell adenoma of salivary gland is an established variant of monomorphic adenoma. Few cases of malignant basal cell neoplasms have appeared in the literature. Basal cell adenocarcinoma has not only morphologic characteristics of the basal cell adenoma but also infiltrative, perineural and intravascular growth features that indicate a malignant potential. Some cases of these tumors which metastasized to the lymph nodes and lung have been reported. The peak incidence of age is in the fifth decade of life, and there is no gender predilection. The parotid gland is a predominant site of involvement. The authors have experienced such case of basal cell adenocarcinoma, which was presented by a single parotid mass. The tumor was removed by total parotidectomy with preservation of the facial nerve.