Monday, January 11, 2021

Case of the Week 622

 This week's case was graciously donated by Dr. Kyle Rodino, one of our outstanding former Medical Microbiology fellows. The following specimen was submitted to the clinical microbiology laboratory in vodka (which deserves extra points for creativity). Identification?





8 comments:

Richard Pollack said...

Human lice (Pediculus). Almost certainly head lice and their eggs. I've received many in vodka and other spirits. That's better than gasoline, kerosene or a jar full of a pesticide. There's no need to use any fixative or preservative for lice.

Blaine A. Mathison said...

usually vodka ends up leading to Pthiris, not Pediculus... }:-D

Anonymous said...

Wow, a new way to start the NewYear. A bunch of drunk head lice and well seasoned eggs. So drunk the Pediculus (Pedi for foot) went heel over head. Anyway the name Pediculus humanus var. capitis may have its name origin otherwise.
Florida Fan.

TheOracle said...

Marvelous pictures, as usual! These should be Pediculus humanus capitis. In the second image, basing on lenght, I think we can see different stages: stage 2 nymph (the one to the right), stage 3 nymph (the second from above) and adults. Happy new year!

Italian new fan

Kosta Y. Mumcuoglu said...

In the second picture I see five females (all with a W like posterior end) as well as one (most probably) third instar nymph. In addition some eggs/nits. In the third picture there are two females,in the anterior and posterior part of the louse in the middle we can see eggs while under the eggs in the posterior end there is a nit (empty egg shell without operculum. All females look well fed, which would be quite wise to not have an empty stomach before your start swimming in vodka.....

Kendra said...

Ha!

Paul Divis said...

Pediculus humanus capitis

Unknown said...

Lousy images. (someone had to say it!)