Figure 5. Pancytokeratin immunohistochemical stain (100x) showing scattered positive tumor cells with cytoplasmic brown staining.

From

Transient Third-degree Heart Block Secondary to Asymptomatic COVID-19 Infection

Aleem Azal Ali, Naji Maaliki, Michael Omar, Amy Roemer, Jose Ruiz, Khadeeja Esmail

American Journal of Medical Case Reports. 2021, 9(4), 259-260 doi:10.12691/ajmcr-9-4-13