[Ophthalmologic disease in sarcoid-like granulomatosis and true sarcoidosis in immunodeficiency. Four case reports].

Granulomatosis lesions occurring after diagnosis of primary or secondary immunodeficiency are not accidental and have been described in a small number of patients suffering from various diseases: common variable immunodeficiency (CVID), malignancy (lymphoma and solid tumors), and acquired immunodeficiency syndrome (AIDS). Two types of granulomatosis can appear: true sarcoidosis and sarcoid-like reaction. We report four patients, two with CVID and two with malignancy, in whom clinical granulomatosis appeared a few months to a few years after diagnosis of immunodeficiency. They developed noncaseating granulomas of the lung, spleen and liver associated with conjunctival granulomas and bilateral panuveitis. The granulomatous disorder was diagnosed after immunodeficiency on histopathological studies revealing noncaseating granulomas. Causation agents such as infectious organisms and environmental compounds were excluded. The relationship between sarcoid-like reaction, true sarcoidosis and immunodeficiency is discussed. The underlying pathophysiology responsible for the association between granuloma formation and immunodeficiency in the same patient remains obscure. It may be quite difficult to distinguish true sarcoidosis and sarcoid-like reaction. It is possible that these two entities are the clinical extremes of a common pathological process.