Fibrosarcoma - skin
Location: Connective tissue (sub)cutaneous
Behaviour: Grows slowly in nearby tissues, rarely metastasizes
Diagnostics: Cytology, histology, radiography
Treatment: Surgery, (chemotherapy, radiotherapy)
Prognosis: Very good when completely excised
Here you can find pictures of dogs with this tumour type. These images may be unsuited for sensitive viewers.
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These are generally slow growing and non-painful masses. Depending on the localization of the tumour and how invasive the tumour is, local symptoms will occur (e.g. tumour that penetrates the bone or complicates the folding of the toes will cause limping). Satellite injuries occur regularly. This is because fibrosarcomas choose the path of least resistance when spreading. When there is tension in the skin, the tumour spreads away from this tension.
  1. Dennis MM, McSporran KD, Bacon NJ, Schulman FY, Foster RA, Powers BE. Prognostic Factors for Cutaneous and Subcutaneous Soft Tissue Sarcomas in Dogs (2011). Veterinary Pathology 48(1) 73-84.
  2. Ehrhart NP, Ryan DR, Fan TM. Tumors of the Skeletal System. Withrow and MacEwen's Small Animal Clinical Oncology, 5th edition, Chapter 24 (p 492).
  3. Liptak JM, Withrow SJ. Cancer of the Gastrointestinal Tract. Withrow and MacEwen's Small Animal Clinical Oncology, 5th edition, Chapter 22 (p 383).
  4. VSSO Skin Soft Tissue Tumor
  5. Thanks goes out to the Department of Medical Imaging of Companion Animals and Orthopedics of the Small Companion Animals, Faculty of Veterinary Medicine, Ghent University for the medical images.
  6. HiLo oral fibrosarcoma: Frank Verstraete & Nadine Meertens - Oncologisch Treffen 2019
Clinical trials
Innovative immunotherapy for solid tumors
Improving the outcome of dogs with head and neck tumors using fluorescence-guided surgery
Aspartame for the prevention of chemotherapy-induced diarrhoea: a pilot study

AURA Veterinary
Surrey, United Kingdom

Anicura Clinica veterinaria Malpensa
Samarate, Italy

Hospital for Small Animals, Royal (Dick) Vet School of Veterinary Studies
Edinburgh, United Kingdom

Auna Especialidades Veterinaria
Paterna, Spain
+44 (0)1483 668100

Study of the behaviour of metronomic chemotherapy agents

Service of Cancerology, VetAgro Sup, Campus veterinary medicine
Lyon, France