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Table 1 Proposed photosensitisation clinical grading system. Lesions were defined as being mild, moderate or severe if having a composite score of <7, <12 or ≥12 respectively

From: Acute-onset high-morbidity primary photosensitisation in sheep associated with consumption of the Casbah and Mauro cultivars of the pasture legume Biserrula

Score Lesion description
  Face and muzzle Eyes Ears Fleece/body
0 No apparent lesions No apparent lesions No apparent lesions No apparent lesions
1 Mild cutaneous oedema and erythema Mild serous blepharitis Drooping of ears with mild oedema. Mild erythema of exposed areas.
2 Cutaneous oedema and erythema; mild to mderate aural and facial oedema Serous exudation, mild to moderate perorbital oedema and conjunctival erythema Mild aural pitting oedema Marked erythema of exposed areas.
3 Severe cutaneous erythema, crusting and black discolouration; moderate aural and facial oedema Serous exudation, possible crusting; marked palpebral and conjunctival erythema and oedema; mild to moderate periorbital oedema Marked aural pitting oedema, curling of ear ends, some flaking or other lesions possible Multifocal, possibly multifocally extensive, patchy fleece loss, erythema of underlying skin.
4 Severe cutaneous erythema, crusting and black discolouration; severe aural and facial oedema Severe perorbital, palpebral and conjunctival oedema. Possible corneal opacity or ulceration or opacity, serous exudate, eyelid crusting Marked aural pitting oedema, curling of ear ends, other dermal lesions present. Skin flaking and multifocal necrosis; some tissue loss from rubbing may be evident; moderate serous exudation Marked focal or multifocal fleece loss and dermatitis of exposed skin.
5 Multifocal irregularly shaped cutaneous necrosis and exudation; severe dermatitis including secondary lesions; severe facial oedema Severe periorbital, palpebral and conjunctival oedema; eyes closed; corneal ulceration and/or opacity Marked aural pitting oedema, curling of ear ends and tissue loss, other dermal lesions present including flaking and multifocal necrosis; abundant serous exudation Widespread fleece loss, severe dermatitis of exposed skin. Significant fleece loss in dorsum and flanks.