3 February 2021: Images of the Week

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

Soft tissue > Sclerosing epithelioid fibrosarcoma

Sclerosing epithelioid fibrosarcoma with EWSR1-CREB3L1 fusion. Small, round to ovoid epithelioid cells with sparse, often clear cytoplasm and round to oval nuclei.

Contributed by Borislav A. Alexiev, M.D.

Stains > HPV (Human papillomavirus)

p16 diffuse and strong nuclear and cytoplasmic staining in HSIL.

Contributed by Ana Félix, M.D., Ph.D.

Stomach > Carcinoma-general

Gastric tumor with linitis plastica pattern: diffuse rugal flattening and thickening of the gastric wall. Note the absence of a well defined tumor mass.

Contributed by Clara Alfaro, M.D., Ph.D.

Vulva, vagina & female urethra > Condyloma

Condyloma acuminatum of the vulva with acanthosis, papillomatosis and basal fusion of broad papillae. There are no significant viral specific changes of the epithelium.

Contributed by Matthias Choschzick, M.D.

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