Case 8

Case of the Month 8

Clinical Summary

History: This is 65 year-old female presented to her family physician with a mass in the scalp (ie. skin). She has no known significant medical or surgical problems. Submitted are multiple digital images of the lesion.

Click on the thumbnails for a larger view of the image

This care submitted by:

Hameed Aljawad, MD, McMaster University
Ayman Alhabeeb, MD, McMaster University
S. Kulkarni, MD, Humber River Regional Hospital
Samih Salama, MD, McMaster University
ssalama@mcmaster.ca

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Figure 1

Section of the lesion showing minute fragment of keratinizing squamous epithelium representing an epidermis with a fragment of cellular marrow elements..

Figure 2

The tumor is composed of predominantly bone including cellular marrow, lobules of cartilage and epihtelial elements.

Firure 3

Closer view of the lobules of mature cartilage and epithelial elements arranged in sheet.

Figure5

The epithelial elements make variable sized tubular lumina and focally form horn pearls.

Firure 4

Closer view of the lobules of mature cartilage and epithelial elements arranged in sheet.

Figure6

The epithelial elements here form tubules and single discohesive cells.

Figure 7

Hyperceullar marrow showing active trilineage hematopoesis.