17 March 2021: Images of the Week

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

Skin nontumor > Warts (verrucae)

Hyperkeratosis, papillomatosis, hypergranulosis, koilocytosis and inward bending of rete ridges at borders of lesion. Dermal papillae show dilated capillaries.

Contributed by Heba Ahmed Abdelkader, M.D.

Small intestine & ampulla > Lymphangioma

Scanning magnification shows the dilated lymphatics in the submucosa of the small intestine (H&E, 2x).

Contributed by Haider A. Mejbel, M.D.

Stomach > Pyloric gland adenoma

High power view of PGA showing small tubular glands with low cuboidal epithelium and bland nuclei.

Contributed by Supriya Srivastava M.D., Ph.D.

Bone & joints > Adamantinoma

Anastomosing thin trabeculae of mildly atypical epithelioid and spindled cells within fibrous stroma.

Contributed by Borislav A. Alexiev, M.D.

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