Changes

==Differential Diagnoses==

==Differential Diagnoses==

'''Neoplasia, abscesses and enlarged lymph nodes''' may produce a mass in or under the skin.

'''Neoplasia, abscesses and enlarged lymph nodes''' may produce a mass in or under the skin.

The types of neoplasia that can occur are: mast cell tumor or mastocytoma, sebaceous gland adenoma and adenocarcinoma, benign cystic adenomas, fibroma and fibrosarcoma, hemangioma, cutaneous hemangiosarcoma, chordoma, neurofibroma, leiomyoma, histiocytoma, squamous cell carcinoma, basal cell carcinoma, cutaneous lymphoma and melanoma - the most common being '''benign mast cell tumours, sebaceous gland adenomas and haemangiomas'''.

The types of neoplasia that can occur are: [[Mast Cell Tumour|mast cell tumor]] or mastocytoma, [[Adenoma#Sebaceous gland adenoma|sebaceous gland adenoma]] and [[adenocarcinoma]], benign cystic adenomas, fibroma and fibrosarcoma, [[hemangioma]], cutaneous [[hemangiosarcoma]], chordoma, neurofibroma, [[leiomyoma]], [[histiocytoma]], [[Squamous Cell Carcinoma|squamous cell carcinoma]], [[Acanthomatous Ameloblastoma|basal cell carcinoma]], cutaneous [[lymphoma]] and [[melanoma]] - the most common being '''benign mast cell tumours, sebaceous gland adenomas and haemangiomas'''.

==Clinical Signs==

==Clinical Signs==