An @entity2108 with disseminated abdominal metastases was diagnosed in a 35-year-old male @entity831 . Clinically, the animal displayed lethargy, weight loss, @entity843 , and @entity1661 . Imaging studies showed several large abdominal masses. At necropsy, variably sized masses of neoplastic mesenteric lymph nodes that encompassed several intestinal loops were present throughout the abdomen. The largest mass measured 9 x 5 cm and had cauliflower-like protrusions into the jejunal lumen. The entire abdominal cavity was covered by a sheet of neoplastic tissue. Histopathologically, the @entity5 consisted of solid sheets of proliferating lymphoid cells forming a cohesive growth that filled the lymph node sinuses. The @entity5 had invaded the intestinal wall. @entity2108 was diagnosed from immunohistochemistry findings on the basis of positive reaction to the CD3 and CD30 markers and negative reaction to the CD20 marker. Serologic analysis revealed positive titers for @entity2025 . Both serologic and virologic studies showed no evidence of detectable @entity281 . This type of @entity5 has not been reported before in the @entity831 .

Spontaneous @entity2108 in a XXXX : a clinicopathological and immunohistochemical study.

@entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity843 :: ('MESH:D001201', 'Disease') :: ['ascites'] @entity1661 :: ('MESH:D000008', 'Disease') :: ['abdominal distention'] @entity831 :: ('9598', 'Species') :: ['chimpanzee'] @entity281 :: ('MESH:D007239', 'Disease') :: ['retroviral infection'] @entity2108 :: ('MESH:D017728', 'Disease') :: ['anaplastic large cell lymphoma', 'Anaplastic large cell lymphoma'] @entity2025 :: ('MESH:D020031', 'Disease') :: ['Epstein-Barr, cytomegalo-, and varicella-zoster viruses']
@entity831 :: (9598,Species) :: ['chimpanzee']
