A new transcriptional variant and small azurophilic granules in an acute promyelocytic leukemia case with NPM1/RARA fusion gene..     ///    "Reverse-transcription polymerase chain reaction amplified the NPM1/RARA fusion transcripts derived from a combination of NPM1 exon 4 and RARA exon 5, or of NPM1 exon 1 and RARA exon 5. "    ///    "As MS was also diagnosed in two of the seven other reported cases of APL with NPM1/RARA, MS may occur more frequently in APL with NPM1/RARA than APL with PML/RARA.. "    ///     We report here the first case of NPM1/RARA-positive acute promyelocytic leukemia (APL) preceded by myeloid sarcoma (MS) in the vertebra. 