| 词条 | Ethmoid hematoma |
| 释义 |
The hematoma usually extends into the nasal passage. A growing hematoma causes pressure necrosis of the bone surrounding the hematoma, but only on rare occasions does it cause facial distortion. It is most commonly seen in horses older than six years. Mild, persistent, spontaneous, intermittent, and unilateral epistaxis is the most common sign clinically. DiagnosisDiagnosis of the condition is best suited to endoscopy; the lesion can be seen extending into the nasal passages on endoscopic examination and can be demonstrated on radiographs. Further elucidation can be obtained with MRI or CT in cases which are more widespread or invasive. TreatmentTreatment most commonly involves the removal of the complete lesion during a single procedure, via the frontonasal bone flaps; recurrence is likely. Ablation treatment with an YAG laser looks to be a possibility for permanent removal. Some success has been seen using intralesional injections of formalin, performed by endoscopy. PrognosisPrognosis for this condition varies according to extent of the hematoma, but is normally fairly good. Smaller hematomae carry a 99% chance of full recovery, with larger ones carrying a recovery rate ranging from 80 to 90%. Occasional epistaxis may follow the surgery, but this is temporary and should subside within 2 to 3 weeks after surgery. See alsoEquine nasal cystsReferences1. ^{{cite web | title = Ethmoid Hematoma | work = The Merck Veterinary Manual | date = 2006 | url = http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/121325.htm | accessdate = 2007-07-10 }} {{horse-stub}}{{Veterinary-med-stub}} 1 : Horse diseases |
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