A 49-year-old man comes to the physician for a 3-month history of fatigue, night sweats, and weight loss. Abdominal examination shows shifting dullness and a small mass palpable to the right of the umbilicus. Paracentesis shows chylous accumulation. A biopsy specimen is shown. Which of the following is the most likely explanation for these findings?
Anti-apoptotic molecule
Fusion protein
Recombinational double-stranded DNA mal-repair
Transcription factor
Tyrosine kinase
