Specimen Information

Species: dog

Age: 8

Sex: female

Organ: Spleen, lymph node, and bone marrow

History: 3-4 week history of decreased appetite, lethargy, and occasional vomiting and diarrhea.

Self-test Questions

The submandibular lymph node is diffusely markedly enlarged, firm, subtly multilobular, and pale tan to white.

Lymphoma.