Granulomatosis Lipoid

**Lipoid granulomatous sinus** (LGS) is a rare malignant tumor, a type of mature cell carcinoma of the nasopharynx, characterized by lipoid degeneration of the cellular elements of the neoplasm and the development of granulomas resembling histiocytic ones (according to the histological picture of the tumor, malignancy of paralymphatic or nonspecific lymph nodes of the neck is noted), which determines the features of the clinical course of LGS. Specific staining of malignant cells with eosinophilic cytoplasm allows them to be reliably differentiated from ordinary parenchymal elements of the lymph node. With this pathology the most aggressive