A 52-year-old white man accidently inoculated his finger with a contaminated thorn while clearing the roadside of "saw briar," Smilax tamnoides var. hispida. The organism spread from the primary inoculation site to form a chain of nodules up the back of the hand, wrist, and arm to simulate sporotrichosis. The fungus was isolated in culture and identified as Nocardia brasiliensis.
Moore M, Conrad AH. Sporotrichoid Nocardiosis Caused by Nocardia Brasiliensis. Arch Dermatol. 1967;95(4):390–393. doi:10.1001/archderm.1967.01600340050011
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