| Tunga penetrans | <entomology> A member of the flea family, Tungidae, commonly known as chigger flea, sand flea, chigoe, or jiggers. The minute female penetrates the skin, frequently under the toenails; as she becomes distended with eggs to about pea size, a painful ulcer with inflammation develops at the site. Synonym: Sarcopsylla penetrans. (05 Mar 2000) |
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| mycoplasma penetrans | A species of gram-negative, facultatively anaerobic bacteria. This organism shows remarkable pathobiologic properties: it adheres to cell surfaces, deeply penetrates into the cell, and strongly adsorbs human red blood cells and human CD4+ lymphocytes and monocytes. M. Penetrans was first isolated from the urogenital tract of patients with aids and high frequencies of antibodies to it are seen in HIV-infected patients. (12 Dec 1998) |
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| Sarcopsylla penetrans | <entomology> A member of the flea family, Tungidae, commonly known as chigger flea, sand flea, chigoe, or jiggers. The minute female penetrates the skin, frequently under the toenails; as she becomes distended with eggs to about pea size, a painful ulcer with inflammation develops at the site. Synonym: Sarcopsylla penetrans. (05 Mar 2000) |
| Pulex penetrans | Incorrect name for Tunga penetrans. (05 Mar 2000) |
| hyperkeratosis penetrans | Discrete and confluent horny follicular plugs on a crateriform base, often occurring on the arms and legs in diabetics with renal failure; possibly a severe form of perforating folliculitis. Synonym: hyperkeratosis penetrans, Kyrle's disease. (05 Mar 2000) |