OBJECTIVE To compare the thickness and organization of surface epithelium, and high endothelial venules in subepithelial compartments of human nasopharyngeal and palatine tonsils, with reference to functional differences. STUDY DESIGN Comparative cross-sectional. PLACE AND DURATION OF STUDY The Anatomy Department of CPSP Regional Centre, Islamabad, from January to December 2005. METHODOLO...

here, we describe young men with synovial sarcoma in the palatine tonsil, who presented with a 3-4 month history of progressive sore throat, tonsillar ulcerative mass and bleeding. clinical and radiological examinations revealed that the tumors arose from the palatine tonsil and extended to the parapharyngeal space. both tumors were too advanced to remove completely; therefore, they underwent s...

  Hamartomatous polyps of the palatine tonsil are very rare. They have been variously termed as a lymphangiectatic fibrous polyp, lipoma, pedunculated tonsil etc. in the English literature. We present here a case of hamartomatous polyp of the tonsil occurring in a 32-year-old male who presented with bilateral enlarged palatine tonsils with recurrent tonsillitis. Surgical excision showed two pa...

Primary lymphangiomas or lymphangiomatous polyps of the palatine tonsil are rare benign lesions that are described infrequently in the literature. The majority of the published cases concern adults. We report a case of a lymphangiomatous lesion of the right palatine tonsil of a 9-year-old boy. Our clinical suspicion was confirmed by the histological examination after tonsillectomy and the diagn...

Preclinical diagnostic tests for transmissible spongiform encephalopathies have been described for mule deer (Odocoileus hemionus), using biopsy tissues of palatine tonsil, and for sheep, using lymphoid tissues from palatine tonsil, third eyelid, and rectal mucosa. The utility of examining the rectal mucosal lymphoid tissues to detect chronic wasting disease (CWD) was investigated in Rocky Moun...

This paper gives an overview of the anatomical localization and histological characteristics of the tonsils that are present in ten conventional domestic animal species, including the sheep, goat, ox, pig, horse, dog, cat, rabbit, rat, and pigeon. Anatomical macrographs and histological images of the tonsils are shown. Six tonsils can be present in domestic animals, that is, the lingual, palati...

introduction: choristoma is defined as the presence of cells in abnormal locations due to defects during embryological development. the word choristoma implies a neoplasm; whereas heterotopia refers to a displaced tissue without necessarily being a swelling or a neoplasm. literature contains reports of cartilaginous choristoma in the cervix, endometrium, breast tissue, and oral region.   case r...

lymphoepithelial cyst of oral cavity is a rare cystic lesion that presents as an asymptomatic submucosal mass and is usually discovered during routine dental examinations. the site most commonly affected is floor of the mouth and tonsillar involvement seems to be very rare. multiple lymphoepithelial cysts have been reported in parotid of hiv positive patients however in oral cavity they usually...

Preclinical diagnostic tests for transmissible spongiform encephalopathies have been described for mule deer (Odocoileus hemionus), using biopsy tissues of palatine tonsil, and for sheep, using lymphoid tissues from palatine tonsil, third eyelid, and rectal mucosa. The utility of examining the rectal mucosal lymphoid tissues to detect chronic wasting disease (CWD) was investigated in Rocky Moun...

The palatine tonsils are constantly exposed to ingested or inhaled antigens which, in turn, lead to a permanent activation of tonsillar immune cells, even in a basic physiological state. The aim of the present study was to investigate if the immunological activation of the human palatine tonsil is reflected by a high metabolic activity, as determined by in vivo measurement of protein synthesis....