1/6. Papillary cystadenoma: a rare tumor of the minor salivary glands.Papillary cystadenoma of the minor salivary glands is a rare benign neoplasm that clinically resembles mucous cysts. Characteristic histological features are diagnostic. However, salivary gland histology is particularly difficult to interpret. Primarily, as further clinical and histological differential diagnoses have to take into account the well-differentiated cystic mucoepidermoid carcinoma and the papillary cystic type of acinic cell carcinoma, both malignant neoplasms of the salivary glands. We report on a 39 year old female with a bluish cystic lesion at the buccal mucosa, which occurred 14 years after the excision of a similar appearing, histologically proven mucous retention cyst at the same location. The histology of this tumor, however, revealed a papillary cystadenoma. Although rare, benign and malignant salivary gland neoplasms occur in minor salivary glands, and are clinically indistinguishable from mucous retention cysts. The dermatologist should be familiar with these differential diagnoses, since different therapeutic consequences result from an early diagnosis obtained by excision and histological examination of oral cystic tumors.- - - - - - - - - - ranking = 1keywords = gland (Clic here for more details about this article) |
2/6. Papillary cystic tumor of the pancreas coexisting with hairy cell leukemia.The coexistence of a pancreatic papillary cystic tumor with hairy cell leukemia is reported. To the best of our knowledge this association has never been published. A 41-year-old man diagnosed with hairy cell leukemia developed a second malignancy that corresponded to a papillary cystic pancreatic tumor. The patient underwent splenectomy and a tumoral surgical resection, and is currently well at 21 months follow-up. A pathogenetic relationship between the two malignancies was not demonstrated. Hairy cell leukemia has been reported to be associated to a great number of different second malignancies. In contrast, only two papillary cystic tumors of the pancreas have been described associated to a second neoplasm, a papillary thyroid carcinoma and a colonic carcinoma. This unusual benign or low-grade malignant pancreatic tumor more commonly occurs in the tail of the pancreas of young women. We want to stress the unusual presentation of this pancreatic tumor affecting the head of the gland in a male patient as well as its coexistence with a hairy cell leukemia.- - - - - - - - - - ranking = 0.11111111111111keywords = gland (Clic here for more details about this article) |
3/6. cheilitis glandularis: an unusual histopathologic presentation.cheilitis glandularis (CG) is an uncommon disease that usually affects the lower lip of adults. It is characterized by enlargement and eversion of the lip in association with excretory duct dilatation. The presence of minor salivary gland hyperplasia is controversial. Three types of CG have been described in the literature; the classification is based on the common clinical and histopathologic findings (ie, simple, superficial, and deep). This report is of an unusual case of CG simplex for which the initial histopathologic diagnosis was papillary cystadenoma, a neoplastic process. The lesion was completely excised, and final microscopic review of a larger specimen revealed chronic sclerosing sialadenitis, dilated salivary secretory ducts with oncocytic change and periductal inflammation, and foci of adenomatous hyperplasia consisting of enlarged ducts exhibiting squamous epithelial metaplasia and hyperplasia with papillary architecture. The latter proliferative pattern is an unusual finding in what is otherwise clinically diagnosed as CG.- - - - - - - - - - ranking = 0.66666666666667keywords = gland (Clic here for more details about this article) |
4/6. Papillary cystadenoma arising from the upper lip: a case report.We report a rare case of a papillary cystadenoma arising from the upper lip. This tumor was not distinctly encapsulated and had proliferated replacing the ductal epithelium. mast cells were found not only in the stroma but also in the oncocytic epithelial layer. There was a strong immunoreaction with mitochondrial antibody in the epithelial layer. Only one case (0.9%) of papillary cystadenoma has occurred among the 110 benign intraoral salivary gland tumors seen in our hospital from 1966 through September 2003.- - - - - - - - - - ranking = 0.11111111111111keywords = gland (Clic here for more details about this article) |
5/6. Papillary cystadenoma of the minor salivary gland of the lower lip.A case report of the papillary cystadenoma from minor salivary gland in lower lip of a 54-year-old man is described.- - - - - - - - - - ranking = 0.55555555555556keywords = gland (Clic here for more details about this article) |
6/6. Tubular apocrine adenoma with syringocystadenoma papilliferum arising from the external auditory canal.Tubular apocrine adenoma (TAA) is a very rare sweat gland tumour. Comprehensive review of the literature reveals that TAA in the external auditory canal (EAC) has not yet been reported. We report a case of TAA in the EAC, together with characteristic histopathological findings.- - - - - - - - - - ranking = 0.11111111111111keywords = gland (Clic here for more details about this article) |