[Successful treatment of an equine sarcoid. Case report on a combined surgical and photodynamic therapy]. / Erfolgreiche Behandlung eines rezidivierenden equinen Sarkoids. Fallbericht einer kombinierten chirurgischen und photodynamischen Therapie.

The case report describes the surgical and photodynamic treatment (PDT) of an equine sarcoid in a 6-year-old gelding. A mass on the ventral prepuce, several tumours on the lateral aspect of the prepuce and one sarcoid on the front aspect of the chest were treated. For PDT, Temoporfin (Fospeg® Biolitec AG, Jena) at a concentration of 0.15mg/ml was injected locally. The subsequent irradiation was performed using a red-light laser (652nm) with an energy density of 10J/cm². The mass on the ventral aspect of the prepuce and some of the lateral tumours displayed total remission. The remaining tumours decreased in size or stopped growing.