Parotid lymphoepithelial cysts in human immunodeficiency virus: a review.

BACKGROUND: Many patients with human immunodeficiency virus present with atypical features. Early indicators of human immunodeficiency virus are scarce and hence most affected patients are diagnosed in the later stages of the disease, which is associated with poor prognosis. Salivary gland disease usually develops before acquired immunodeficiency syndrome, and is sometimes the first manifestation of human immunodeficiency virus infection. Salivary gland lesions include benign lymphoepithelial cysts of the parotid gland, which are seen in 3-6 per cent of patients. Many of the reported lesions are diagnosed on routine examination. OBJECTIVE: This review aimed to highlight the association between parotid gland benign lymphoepithelial cyst and human immunodeficiency virus infection, in order to aid early diagnosis and management of the disease. CONCLUSION: Human immunodeficiency virus testing is recommended for patients with benign lymphoepithelial cysts, as this can often be the first indication of human immunodeficiency virus infection. Benign lymphoepithelial cysts are important diagnostic and prognostic indicators in human immunodeficiency virus infection.

[Lymphoepithelial cysts of the parotid gland: a pathology linked to HIV infection]. / Les kystes lymphoépithéliaux de la glande parotide: une pathologie liée à l'infection VIH.

We review the various lesions encountered in the parotid gland associated with HIV infection and propose guidelines for the management of a chronic parotid swelling in this setting. Lymphoepithelial cysts is the main diagnosis of parotid masses presented by HIV positive patients. This benign condition is diagnosed on cytology and the treatment is usually conservative. Patients with a diagnosis of lymphoepithelial cysts should be tested for HIV.

Lymphoepithelial cyst of the pancreas. No evidence for Epstein-Barr virus-related pathogenesis.

Compared to pseudocyst formation after prior pancreatitis, true cysts of the pancreas are rare. Pancreatic cysts with irregular wall components or a mucinous content raise the suspicion for the presence of a cystic neoplasm, and surgical resection is recommended. A case of a patient with a history of prostate cancer is described in whom a cyst of the pancreatic tail was discovered incidentally. Based on the radiographic features, which did not support the presence of a serous cystadenoma, a spleen-preserving distal pancreatectomy was performed. Histologic features were characteristic for a lymphoepithelial cyst (LEC) of the pancreas, lined with thinned squamous epithelium surrounded by benign lymphoid tissue. Since LECs of the parotid gland, which are associated with acquired human immunodeficiency, are frequently related to Epstein-Barr virus (EBV) infection, EBV in situ hybridization was performed and did not reveal evidence for EBV. Twenty-eight instances of pancreatic LECs have been reported, primarily affecting adult males, without evidence of increased numbers of EBV-positive cells. The pathogenesis, differential diagnosis, and clinical implications of lymphoepithelial pancreatic cysts are discussed.

Human immunodeficiency virus type 1 in an unusual cystic lymphoepithelial lesion of the lung.

AIMS: We present the clinical and histopathological findings of an unusual pulmonary cystic lymphoepithelial lesion in an HIV sero-positive patient. METHODS AND RESULTS: The 32-year-old female patient developed two nodules in the vicinity of the right and left hila. Left upper lobectomy showed a 40-mm wide cystic lesion. The cyst wall was lined by a squamous epithelium and lymphoid tissue with a marked follicular hyperplasia and a prominent follicular cell dendritic network expressing HIV major core protein p24. CONCLUSIONS: The absence of an Epstein-Barr virus infected lymphoid population and monoclonal immunoglobulin gene rearrangement supported the benign nature of the lesion.