Table 1 Histopathological diagnosis, relative frequency, and occurrence rate of CCT recorded in the database of ICBAS Pathology Lab (total population = 2,291 dogs)
DIAGNOSIS | NUMBER OF CASES | RELATIVE FREQUENCY (% OF ALL SKIN TUMORS) |
|---|---|---|
EPITHELIAL TUMORS | 339 | 28.61 |
EPIDERMAL TUMORS | 60 | 5.06 |
BASAL CELL CARCINOMA | 6 | 0.51 |
PAPILLOMA | 22 | 1.86 |
SQUAMOUS CELL CARCINOMA | 32 | 2.70 |
HAIR FOLLICLE TUMORS | 69 | 5.82 |
INFUNDIBULAR KERATINIZING ACANTHOMA | 10 | 0.84 |
TRICHOLEMMOMA | 2 | 0.17 |
TRICHOBLASTOMA | 20 | 1.69 |
TRICHOEPITHELIOMA | 27 | 2.28 |
PILOMATRICOMA | 6 | 0.51 |
SUBUNGUAL KERATOACANTHOMA | 3 | 0.25 |
SEBACEOUS GLAND TUMORS | 96 | 8.10 |
SEBACEOUS ADENOMA | 62 | 5.23 |
SEBACEOUS EPITHELIOMA | 34 | 2.87 |
APOCRINE GLAND TUMORS | 18 | 1.52 |
APOCRINE ADENOMA | 8 | 0.68 |
APOCRINE CARCINOMA | 6 | 0.51 |
HEPATOID GLAND TUMORS | 88 | 7.43 |
HEPATOID ADENOMA | 57 | 4.81 |
HEPATOID EPITHELIOMA | 14 | 1.18 |
HEPATOID CARCINOMA | 10 | 0.84 |
HEPATOID NEOPLASM | 7 | 0.59 |
EPITHELIAL TUMORS NOS | 8 | 0.68 |
ADENOCARCINOMA | 1 | 0.08 |
CARCINOMA NOS | 4 | 0.34 |
MELANOCYTIC TUMORS | 43 | 3.63 |
MELANOCYTOMA | 23 | 1.94 |
MELANOMA | 20 | 1.69 |
MESENCHYMAL TUMORS | 311 | 26.24 |
BENIGN SOFT TISSUE TUMORS | 115 | 9.70 |
LIPOMA | 86 | 7.26 |
INFILTRATIVE LIPOMA | 6 | 6.98 |
FIBROMA | 25 | 2.11 |
MYXOMA | 3 | 0.25 |
SOFT TISSUE SARCOMAS | 90 | 7.59 |
FIBROSARCOMA | 2 | 0.17 |
PERIVASCULAR WALL TUMOR | 20 | 1.69 |
PERIPHERAL NERVE SHEATH TUMOR | 39 | 3.29 |
LIPOSARCOMA | 2 | 0.17 |
SARCOMA NOS | 21 | 1.77 |
SINOVIAL SARCOMA | 3 | 0.25 |
MYXOSARCOMA | 3 | 0.25 |
VASCULAR TUMORS | 94 | 7.93 |
HEMANGIOMA | 68 | 5.74 |
LYMPHANGIOMA | 3 | 0.25 |
HEMANGIOSARCOMA | 23 | 1.94 |
MUSCULOSKELETAL TUMORS | 8 | 0.68 |
OSTEOSARCOMA | 4 | 0.34 |
MESENCHYMAL NEOPLASM NOS | 3 | 0.25 |
HEMOLYMPHATIC TUMORS | 357 | 30.13 |
MAST CELL TUMORS | 269 | 22.70 |
MAST CELL TUMORS NOC | 4 | 0.34 |
CUTANEOUS MAST CELL TUMORS | 244 | 20.59 |
SUBCUTANEOUS | 21 | 1.77 |
PLASMOCYTIC TUMORS | 18 | 1.52 |
PLASMOCYTOMA | 17 | 1.43 |
LYMPHOMAS | 6 | 0.51 |
T- CELL LYMPHOMA | 2 | 33.33 |
HISTIOPROLIFERATIVE DISORDERS | 61 | 5.15 |
HISTIOCYTOMA | 58 | 4.89 |
HISTIOCYTIC SARCOMA | 3 | 0.25 |
ROUND CELL NEOPLASM NOS | 3 | 0.25 |
HAMARTOMAS | 56 | 4.73 |
HAMARTOMA | 56 | 4.73 |
TUMOR LIKE LESIONS | 71 | 5.99 |
ACROCHORDON | 71 | 5.99 |
CUTANEOUS NEOPLASM NOS | 8 | 0.68 |
UNDIFFERENTIATED MALIGNANCY | 8 | 0.68 |