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Anaplastic large cell lymphoma associated with Sjögren's syndrome.

We report a case of a 20-year-old Japanese female with recurrent anaplastic large cell lymphoma (ALCL) associated with Sjögren's syndrome (SjS). She was first diagnosed to have ALCL presenting with axillary lymphadenopathy, which within a month underwent spontaneous remission, at the age of 12 years. Eight years later she developed left inguinal lymphadenopathy with clinical overt sicca symptoms associated with elevated serum IgG, interleukin (IL)-1beta and IL-6 levels. Lymph node biopsy was now diagnostic of ALCL characterized by large pleomorphic CD30+ blast cells with the specific chromosomal abnormality, t(2;5)(p23;q35). In contrast to this the salivary gland and renal biopsy revealed infiltration of small lymphocytes, morphologically and cytogenetically distinct from the ALCL cells. Interestingly, SjS symptomatology correlated with disease activity of ALCL and based on an association with elevated IgG and IL-6 levels, suggesting that the concurrence of these two diseases could be more than coincidental. To the best of our knowledge, this is the first reported case of ALCL presenting concurrently with SjS.