Sarcoidosis and Multiple Myeloma: A Case Report and Literature Review.

The existence of a sarcoidosis-lymphoma syndrome has been previously proposed since the relation between sarcoidosis and an increased risk of lymphoproliferative disorders is well established. Multiple myeloma is a malignant multifocal proliferation of clonal plasma cells within the bone marrow, and its association with sarcoidosis has been rarely described. We present a concurrent diagnosis of sarcoidosis and multiple myeloma and make a brief analysis of the reported cases in the literature.

[Oncocytic tumors of the adrenal gland].

The oncocytic tumors of the adrenal gland are rare. To date there's only 147 cases published. The authors present a case of a 34 year-old man admitted to the hospital with lumbar pain and fever.

[Hypokalemic paralysis: the first presentation of primary Sjögren's syndrome].

The Sjögren's syndrome is a systemic autoimmune disorder characterized by chronic inflammation of the exocrine glands with extraglandular manifestations in up to 25% patients. Renal involvement occurs in 18.4-67% of cases, with tubulointerstitial nephritis being the most frequent pathology.