Cactus-spine granulomas occurred in nine patients. Retained dermal barbs after skin puncture from the cholla and prickly pear varieties of Opuntia can cause this reaction on rare occasions. Results of skin tests with glochid extracts from these cacti support the hypotheses of an allergic granuloma.
Schreiber MM, Shapiro SI, Berry CZ. Cactus Granulomas of the Skin: An Allergic Phenomenon. Arch Dermatol. 1971;104(4):374–379. doi:10.1001/archderm.1971.04000220032006
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: