9 December 2020: Images of the Week

Here is a selection of new images from our free, online textbook:

Adenomyoepithelial adenosis

Haphazardly arranged glands with bland epithelium and prominent myoepithelium with clear cytoplasm (H&E, 20x).

Contributed by Julie M. Jorns, M.D.


Immunohistochemical double staining demonstrating expression of CD34 (brown) by myeloid blasts and CD70 (red) by interstitial immune cells.

Contributed by Christian Schürch, M.D., Ph.D.

Indeterminate cell histiocytosis

Skin biopsy showing histiocytoid cells with eosinophilic cytoplasm and grooved, reniform nuclei in the dermis in indeterminate cell histiocytosis, 400x.

Contributed by Ryanne A. Brown, M.D., M.B.A.

Atypical carcinoid

Pulmonary atypical carcinoid tumor showing salt and pepper chromatin with inconspicuous nucleoli (400x).

Contributed by Philippe Joubert, M.D., Ph.D.

Buschke-Löwenstein tumor

Low magnification view of resection sample shows arborizing papillary architecture and maturing squamous surface epithelium.

Contributed by Lewis A. Hassell, M.D. (source: Juan Rosai Slide Collection)

How can you search the textbook?

For desktop / tablet, you can either use the Google search bar in the upper right corner or visit PathologyOutlines.com and then scroll down to where the 61 chapters are listed, as demonstrated below.

For mobile, visit PathologyOutlines.com, click on “Chapters by Subspecialty” (as demonstrated below) and then click on the subspecialty, chapter and topic.

For any device you can use your favorite browser and type in PathologyOutlines.com in addition to the search term.