Follicular lymphoma with cardiac involvement in a 90-year-old patient: A case report

Figure 1 Imaging findings. Positron emission tomography-computed tomography (PET-CT) showed abnormal tracer uptake at multiple sites. A: Cross-section through the heart shown on computed tomography; B: Cross-section through the heart shown on positron emission tomography; C: Fused PET-CT showed increased fluorodeoxyglucose uptake in the pericardium; D: Coronal PET showed abnormal tracer uptake in the abdominal cavity, right-iliac fossa, left lobar thyroid, and pericardium.

Figure 2 Histological findings. Histological findings from inguinal lymph node biopsy tissue showed lymphatic follicular structure and B-lymphocyte proliferation. A: Hematoxylin and eosin staining showed follicular structure, magnification 100 ×; B-D: Immunohistochemical staining of tumoral cells was positive for cluster of differentiation 79a (CD79a) (B), CD10 (C) and B-cell lymphoma 2 (D), magnification 100 ×.