Changes

Diagnosis is usually based on a combination of environmental factors (season, location) and the characteristic appearance. However, '''washings''' taken from the ulcerated area with warm saline under mild pressure and collected into a Petri dish usually reveal the larvae in considerable numbers.

Diagnosis is usually based on a combination of environmental factors (season, location) and the characteristic appearance. However, '''washings''' taken from the ulcerated area with warm saline under mild pressure and collected into a Petri dish usually reveal the larvae in considerable numbers.

* It is recognised easily by its appearance, i.e. a '''granulomatous mass with yellow, caseous, gritty contents'''

* It is recognised easily by its appearance, i.e. a '''granulomatous mass with yellow, caseous, gritty contents'''

* The presence of these plaques helps to distinguish these lesions from fibroplastic [[Donkey - Sarcoid|sarcoids]] and exuberant granulation tissue

* The presence of these plaques helps to distinguish these lesions from fibroplastic [[Sarcoid - Donkey|sarcoids]] and exuberant granulation tissue

* If unsure, '''biopsy''' to confirm and to rule out neoplasia

* If unsure, '''biopsy''' to confirm and to rule out neoplasia