Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Anosmia persisting for more than 3 months after COVID-19 (S100 immunostain)

Immunostain in a 63-year-old woman shows strong nuclear and cytoplasmic positivity in scattered cells in structures compatible with Bowman glands (arrow). The same immunostain highlighted small nerve bundles, possibly of trigeminal origin, not illustrated in this field. (×200) (Source: Vaira LA, Hopkins C, Sandison A, et al. Olfactory epithelium histopathological findings in long-term coronavirus disease 2019 related anosmia. J Laryngol Otol 2020;134[12]:1123-7. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)