 To investigate the feasibility of detecting API2-MALT1 fusion gene transcript in paraffin-embedded tissue and its diagnostic value for pulmonary MALT lymphoma.     ///    [Detection of API2-MALT1 fusion gene transcript and its diagnostic value in pulmonary MALT lymphoma]..     ///    The presence of API2-MALT1 fusion gene may be correlated with a subset of pulmonary MALT lymphomas that have limited lung involvement..     ///    Detection of API2-MALT1 fusion transcript in paraffin-embedded tissues is feasible by nested RT-PCR and is of diagnostic value.     ///    The API2-MALT1 fusion transcript was found in 3 of 10 pulmonary MALT lymphomas (30%) and in none of the 5 chronic lymphadenitis cases.     ///    Detection of the API2-MALT1 fusion transcript was performed by RT-PCR followed by second-round PCR using nested primers. 