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Cell-mediated immune dysfunction |
In patients with cell-mediated immune dysfunction, each lesion progresses without an inflammatory response, does not heal, and expands. |
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Eczema or disrupted skin |
In individuals with eczema or disrupted skin, the lesions tend to be confluent and massive in extent. |
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Prior inflammatory eye disease |
Periorbital, conjunctival and corneal lesions are seen in those with prior inflammatory eye disease. The periorbital and conjunctival lesions undergo the same evolution as the primary in skin and mucosa, whereas the corneal infection causes ulceration and ultimate cloudiness. |