Superior Vena Cava Syndrome Revealing Sarcoidosis a Decade Later: A Case Report.

Sarcoidosis is a systemic disease of unknown origin, characterized by the formation of immune granulomas in various organs. The occurrence of superior vena cava syndrome (SVCS) remains very rare. We report the case of a 54-year-old patient treated for cervical lymph node tuberculosis in 2010. Three years later, she presented with SVCS of undetermined etiology. In 2023, mediastino-pulmonary sarcoidosis of type II was confirmed in her. The patient remained clinically stable under surveillance and did not receive any specific treatment for sarcoidosis. Superior vena cava syndrome is often associated with malignancy. Benign etiologies, particularly sarcoidosis, although rare, should be investigated.