Chirurgia ucha/Surgery of the ears

Neoplasia

Aural neoplasia is very uncommon. White cats are predisposed to squamous cell carcinomas on the pinna. The prognosis is bad, even with radical excision. Ceruminal cell carci­noma is the most common tumor of the dog. It is benign in the dog, but maligne in the cat.

Further neoplasia are:

• melanoma,
• fibrosarcoma,
• mast cell tumor
• and basal cell tumor.

Depending on the localisation, a pinnectomy or a total ear canal ablation is indicated, together with accompanying radio- or chemotherapy.

Othematome

Concepts of pathogenesis and treatment of the othematome have undergone important changes in the last years. First, it was thought, that trauma would be the etiology. Blood was evacuated regularly with cannulas or chronic othematomas were split, flushed and sutured with interrupted stitches in longitudinal direction.

Nowadays notion is, that the othematome belongs to a general skin problem. The fluid accumulation is the result of a vasculitis, which may accompany the underlying disease. Therefore, the skin problem is treated first, mostly with corticosteroids. Only in very chronic cases and with predictable deformation of the pinna, a surgical approach is indicated.

Injuries

Simple [...]

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