Table 2 Preoperative diagnosis and pathology of 7 patients with parotid gland branchial cysts
Case | Pre-operative diagnosis | Pathology |
|---|---|---|
1 | ? tumour | Cyst lined by stratified squamous epithelium with lymphoid material |
2 | ? tumour | Cyst lined by stratified squamous epithelium with lymphoid material |
3 | ? tumour | Cyst lined by stratified squamous epithelium with lymphoid material |
?lymph node | ||
4 | ?tumour | Cyst lined by stratified squamous epithelium with lymphoid material |
?pharapharyngeal abscess | ||
5 | ? tumour | Cyst lined by stratified squamous epithelium with lymphoid material and pseudostratified columnar epithelium and fibrous wall |
?cyst | ||
?residual lymphangioma | ||
6 | ? tumour | Multilocular cystic structure filled with treacle-like fluid. Intraparotid lymph node with epithelial cysts, lined by mainly ductal type epithelium with foci of oncocytic change. Background parotid normal. No evidence of malignant change |
?benign pathology | ||
?lymph node | ||
?preparotid lipoma | ||
7 | ?tumour | Thin walled cystic nodule 22 mm diameter. Contains brown mucoid material. Cyst lined by attenuated ductal epithelium with areas of squamous metaplasia. The wall consists of hyperplastic lymphoid tissue. Adjacent parotid shows small foci of chronic inflammation, some related to ducts some with features of lymphoepithelial sialadenitis. No evidence of malignancy |
?lymphoepithelioid cyst |