Table 1 Summarization of histopathology results for spleen and liver biopsies
Splenic biopsies obtained in the study | No. (% of total) | No. (% of 125 dogs) |
|---|---|---|
Malignant splenic lesions | ||
Hemangiosarcoma | 69 (82.1) | 69 (55.2) |
Leiomyosarcoma | 4 (4.8) | 4 (3.2) |
Histiocytic sarcoma | 3 (3.6) | 3 (2.4) |
Undifferentiated sarcoma | 2 (2.4) | 2 (1.6) |
Anaplastic spindle cell sarcoma | 1 (1.2) | 1 (0.8) |
Stromal sarcoma | 1 (1.2) | 1 (0.8) |
Osteosarcoma | 1 (1.2) | 1 (0.8) |
Mast cell tumor | 1 (1.2) | 1 (0.8) |
Liposarcoma | 1 (1.2) | 1 (0.8) |
Lymphosarcoma | 1 (1.2) | 1 (0.8) |
Total No. malignant splenic lesions (%) | 84 (100)a | 84 (67.2)a |
Benign splenic lesions | ||
Nodular hyperplasia | 27 (43.5) | 27 (21.6) |
Hematoma | 11 (17.7) | 11 (8.8) |
Infarct | 5 (8.1) | 5 (4) |
Extramedullary hematopoiesis | 4 (6.5) | 4 (3.2) |
Myelolipoma | 3 (4.8) | 3 (2.4) |
Plaques | 3 (4.8) | 3 (2.4) |
Necrosis | 2 (3.2) | 2 (1.6) |
Splenitis | 2 (3.2) | 2 (1.6) |
Congestion | 2 (3.2) | 2 (1.6) |
Lipoma | 1 (1.6) | 1 (0.8) |
Lymphoid hyperplasia | 1 (1.6) | 1 (0.8) |
Hemosiderosis | 1 (1.6) | 1 (0.8) |
Total No. benign splenic lesions (%) | 62 (100)a | 62 (49.6)a |
Liver biopsies obtained in the study | No. (% of total) | No. (% of 125 dogs) |
|---|---|---|
Malignant liver lesions | ||
Hemangiosarcoma | 51 (75) | 51 (40.8) |
Hepatocellular carcinoma | 4 (5.9) | 4 (3.2) |
Histiocytic sarcoma | 3 (4.4) | 3 (2.4) |
Leiomyosarcoma | 3 (4.4) | 3 (2.4) |
Lymphosarcoma | 2 (2.9) | 2 (1.6) |
Undifferentiated sarcoma | 2 (2.9) | 2 (1.6) |
Anaplastic spindle cell sarcoma | 1 (1.5) | 1 (0.8) |
Liposarcoma | 1 (1.5) | 1 (0.8) |
Stromal sarcoma | 1 (1.5) | 1 (0.8) |
Total No. malignant liver lesions (%) | 68 (100)a | 68 (54.4)a |
Benign liver lesions | ||
Nodular hyperplasia | 26 (37.7) | 26 (20.8) |
Hydrophic vacuolar hepatopathy | 16 (23.2) | 16 (12.8) |
Hepatoma | 6 (8.7) | 6 (4.8) |
Hepatitis | 4 (5.8) | 4 (3.2) |
Cholangiohepatitis | 2 (2.9) | 2 (1.6) |
Fibrosis | 2 (2.9) | 2 (1.6) |
Lymphoplasmacytic hepatitis | 2 (2.9) | 2 (1.6) |
Necrosis | 2 (2.9) | 2 (1.6) |
Cirrhosis | 2 (2.9) | 2 (1.6) |
Extramedullary hematopoiesis | 1 (1.4) | 1 (0.8) |
Hematoma | 1 (1.4) | 1 (0.8) |
Lipogranuloma | 1 (1.4) | 1 (0.8) |
Lymphohistiocytic hepatitis | 1 (1.4) | 1 (0.8) |
Congestion | 1 (1.4) | 1 (0.8) |
Infarct | 1 (1.4) | 1 (0.8) |
Cholestasis | 1 (1.4) | 1 (0.8) |
Total No. benign liver lesions (%) | 69 (100)a | 69 (55.2)a |