J Pathol Transl Med.  2015 Jul;49(4):335-338. 10.4132/jptm.2015.04.22.

Sclerosing Extramedullary Hematopoietic Tumor Mimicking Intra-abdominal Sarcoma

• Karaarslan S
• Nese N
• Oncel G
• Ozsan N
• Akalin T
• Kaplan H
• Buyukkececi F
• Hekimgil M

• KMID: 2151144
• DOI: http://doi.org/10.4132/jptm.2015.04.22

Abstract

No abstract available.

MeSH Terms

Sarcoma*

Figure

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  Fig. 1. A soft tissue lesion approximately 9.8×6 cm in size with a lobulated contour along the right iliac vascular structures of the right lower quadrant.

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  Fig. 2. (A) Thick fibrotic bands and increased collagen tissue with occasional mixed inflammatory cell infiltration including eosinophils and foci of individual or grouped cells showing pleomorphic nuclei and large cytoplasm. (B) Features of the large cells are seen more clearly at larger magnification. (C) Increased collagen is seen in the background (Masson’s trichrome).

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  Fig. 3. (A) Large cells are CD61-positive on immunohistochemical stain, indicating that they are megakaryocytes. (B) Glycophorin positivity in precursor cells (green arrows) belonging to the erythroid lineage and surrounding erythrocytes (red arrow).

Reference

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