This week's case goes with some of my recent posts. The following arthropod was submitted from a patient with an itchy rash of his abdomen, pelvic region, and upper thighs. Identification? Also, are there any remarkable features of the particular parasite shown here?
8 comments:
Crab (pubic) louse with two retained eggs. She's very likely to die prematurely from being egg bound, and will suffer from that full feeling.
Pthirus pubis: The Crab Louse, a major Sexually transmitted ectoparasitic infection global prevalence ~2% , cause "pthiriasis! , Itching is owing to HS reaction to saliva! (Exclusive blood feeder and doesn't transmit any other infections like his/her collegue (On a lighter note, may be we have to study if any MPX is piggy backed 😒 )
Phthirus pubis
Phthirus pubis (crab louse)
Phthirus pubis.
Female Phthirus pubis louse. Female due to the morphology of the posterior end. Not sure how to describe it. Double pronged? The male posterior end is more rounded.
This louse causes genital crabs. The claws are designed to latch onto the course pubic hairs of the genital area, allowing sexual transmission of this ectoparasite.
Are we seeing two nits within this female louse? I'm guessing that's the remarkable feature in question.
Sam
Wow another crab! For sure this is a gravid female with her two eggs and a pointed twin peaks rear. The male Pthirus pubis has a rounded posterior. There’s a number of eradication solutions and lost of habitat may contribute to the demise of the causative agent.
Florida Fan
crab louse (Pthirus pubis)
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