Table 3.
Incidence of particular tumour types in small mammal pets, depending on the sex and age.
| Nr. of Cases | Tumour Type | Frequency | Females | Males | Mean Age |
|---|---|---|---|---|---|
| Guinea pigs | |||||
| 46 | Lipomas | 44.7% | 22 | 23 | 2.9 years |
| 15 | Trichofolliculoma | 14.6% | 11 | 4 | 3.9 years |
| 13 | Fibrosarcoma | 12.6% | 6 | 7 | 3.7 years |
| 9 | Liposarcoma | 8.7% | 4 | 4 | 3.6 years |
| 7 | Trichoepithelioma | 6.8% | 5 | 2 | 3.4 years |
| 3 | Fibroma | 2.9% | 2 | 1 | 3.8 years |
| 2 | Haemangioma | 1.9% | 0 | 2 | 2.5 years |
| 1 | Haemangiosarcoma | 1% | 0 | 1 | 9 years |
| 1 | Perivascular wall tumour | 1% | 0 | 1 | 2.5 years |
| 1 | Poorly differentiated sarcoma | 1% | 0 | 1 | 5.4 years |
| 1 | Sebaceous adenoma | 1% | 1 | 0 | 3 years |
| 1 | Epitheliomatous sebaceous carcinoma | 1% | 0 | 1 | 5 years |
| 1 | Apocrine adenocarcinoma | 1% | 0 | 1 | 5 years |
| 1 | Squamous cell carcinoma | 1% | 1 | 0 | 4 years |
| 1 | Compound melanocytoma | 1% | 0 | 1 | 5 years |
| Rats | |||||
| 15 | Fibrosarcoma | 28.3% | 4 | 11 | 17.9 months |
| 9 | Fibroma | 17% | 2 | 7 | 23.4 months |
| 8 | Squamous cell carcinoma | 15.1% | 1 | 7 | 24.3 months |
| 4 | Perivascular wall tumour | 7.5% | 1 | 3 | 21.3 months |
| 3 | Pleomorphic fibrosarcoma | 5.7% | 1 | 1 | 24 months |
| 2 | Histiocytic sarcoma | 3.8% | 1 | 1 | 20 months |
| 2 | Myxosarcoma | 3.8% | 0 | 2 | 31 months |
| 2 | Malignant peripheral nerve sheath tumour | 3.8% | 1 | 1 | 26 months |
| 2 | Simple lipoma | 3.8% | 1 | 1 | 27 months |
| 1 | Benign peripheral nerve sheath tumour | 1.9% | 0 | 1 | 24 months |
| 1 | Neurofibroma | 1.9% | 0 | 1 | 6 months |
| 1 | Sebaceous adenoma | 1.9% | 0 | 1 | 24 months |
| 1 | Apocrine ductal adenoma | 1.9% | unspecified | 18 months | |
| 1 | Pilomatricoma | 1.9% | 1 | 0 | 24 months |
| 1 | Melanocytoma | 1.9% | 1 | 0 | 33 months |
| Pet rabbits | |||||
| 18 | Trichoblastoma | 41.9% | 5 | 11 | 6 years |
| 7 | Fibrosarcoma | 16.3% | 3 | 4 | 7.4 years |
| 3 | Lipomas | 7% | 3 | 0 | 2.3 years |
| 3 | Fibroma | 7% | 0 | 3 | 10.5 years |
| 2 | Melanoma | 4.7% | 2 | 0 | 7 years |
| 2 | Squamous cell carcinoma | 4.7% | 0 | 2 | 5.8 years |
| 1 | Apocrine adenocarcinoma | 2.3% | 0 | 1 | 6 years |
| 1 | Basal cell carcinoma | 2.3% | 1 | 0 | 5 years |
| 1 | Trichoepithelioma | 2.3% | 0 | 1 | 8 years |
| 1 | Papilloma | 2.3% | 0 | 1 | 3 years |
| 1 | Benign peripheral nerve sheath tumour | 2.3% | 0 | 1 | 9 years |
| 1 | Malignant peripheral nerve sheath tumour | 2.3% | 0 | 1 | 6 years |
| 1 | Haemangioma | 2.3% | 0 | 1 | 1.5 years |
| 1 | Compound melanocytoma | 2.3% | 0 | 1 | 4.5 years |
| Ferrets | |||||
| 7 | Mast cell tumour | 33.3% | 2 | 4 | 3 years |
| 4 | Squamous cell carcinoma | 19% | 0 | 4 | 3.8 years |
| 4 | Sebaceous epithelioma | 19% | 2 | 2 | 6.8 years |
| 2 | Poorly differentiated sarcoma | 14.3% | 1 | 1 | 6 years |
| 1 | Sebaceous carcinoma | 4.8% | 0 | 1 | 5 years |
| 1 | Secretory apocrine adenoma | 4.8% | 0 | 1 | 5 years |
| 1 | Apocrine adenocarcinoma | 4.8% | 0 | 1 | 4 years |
| 1 | Malignant peripheral nerve sheath tumour | 4.8% | 0 | 1 | unspecified |
| Hamsters | |||||
| 5 | Trichoepithelioma | 29.4% | 2 | 3 | 15.2 months |
| 3 | Fibrosarcoma | 17.6% | 1 | 2 | 18.7 months |
| 2 | Melanoma | 11.8% | 2 | 0 | 9.5 months |
| 1 | Poorly differentiated sarcoma | 5.9% | 1 | 0 | 21 months |
| 1 | Trichofolliculoma | 5.9% | 0 | 1 | 23 months |
| 1 | Sebaceous epithelioma | 5.9% | 0 | 1 | 13 months |
| 1 | Apocrine adenocarcinoma | 5.9% | 0 | 1 | 12 months |
| 1 | Apocrine ductal adenocarcinoma | 5.9% | 0 | 1 | 15 months |
| 1 | Simple lipoma | 5.9% | 1 | 0 | 12 months |
| 1 | Epitheliotropic T-cell lymphoma | 5.9% | 0 | 1 | 18 months |
| Degus | |||||
| 2 | Fibrosarcoma | 25% | 1 | 0 | 6 years |
| 2 | Poorly differentiated sarcoma | 25% | 0 | 2 | 4.3 years |
| 1 | Myxosarcoma | 12.5% | 0 | 1 | 5 years |
| 1 | Anaplastic sarcoma with giant cells | 12.5% | 1 | 0 | 1.5 years |
| 1 | Malignant peripheral nerve sheath tumour | 12.5% | 1 | 0 | 3.5 years |
| 1 | Epitheliotropic T-cell lymphoma | 12.5% | 1 | 0 | 5 years |
| African pygmy hedgehogs | |||||
| 1 | Fibrosarcoma | 20% | 1 | 0 | 4 years |
| 1 | Liposarcoma | 20% | 0 | 1 | 4 years |
| 1 | Malignant peripheral nerve sheath tumour | 20% | 0 | 1 | 2 years |
| 1 | Histiocytic sarcoma | 20% | 0 | 1 | 7 years |
| 1 | Poorly differentiated sarcoma | 20% | 1 | 0 | 5 years |
| Mongolian gerbils | |||||
| 2 | Scent gland epithelioma | 66.7% | 0 | 2 | 2 years |
| 1 | Histiocytic sarcoma | 33.3% | 1 | 0 | unspecified |
| Chinchillas | |||||
| 2 | Fibrosarcoma | 66.7% | 1 | 1 | 15.5 years |
| 1 | Haemangioma | 33.3% | 0 | 1 | unspecified |