<prompt> A lymph node from a 10-year-old boy reveals large pleomorphic lymphocytes with CD30 positivity, frequent mitoses, and scattered cells bearing kidney-shaped nuclei. Which of the following statements is true?t2;5 translocation impas a worsened prognosis.ALK protein immunostaining is seen in a minority of cases.This tumor occurs exclusively in childrenHallmark cells are a feature.  <response>: This patient has anaplastic large cell lymphoma ALCL. The constituent cells are positive for CD30. Scattered cells showing kidney or donut-shaped nuclei with an eosinophilic region adjacent to the nucleus are known as Hallmark cells. The majority of cases in children shows a t2;5 translocation which correlates with ALK positivity and improved survival. Bimodal incidence. 