Sarcoidosis-lymphoma syndrome: a diagnostic dilemma

Sarcoidosis and lymphoma are generally thought of as being two mutually exclusive diseases that need to be considered in the differential diagnosis of patients with hilar/mediastianal lymphadenopathy. However, there are rare patients in whom both of these diseases coexist. These patients constitute a diagnostic challenge because their presentation (ie, clinical symptoms, imaging abnormalities and even pathology) may all be atypical when each individual disease is considered separately. In this report, we describe a patient who presented with such atypical features and was eventually diagnosed as having both sarcoidosis and a B-cell lymphoma with features of splenic marginal zone lymphoma (SMZL) simultaneously. To our knowledge, this is only the second reported case of SMZL and sarcoidosis in the same patient.

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