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HAROLD N. COLE, Jr., M.D.; JAMES W. REAGAN, M.D.; HERBERT Z. LUND, M.D.

AMA Arch Derm. 1955;72(4):328-334.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The cell of origin of the hemangiopericytoma is generally accepted as being a mesenchymal, perithelial cell described by Zimmermann¹ as the capillary pericyte. He interpreted this cell as being a modified smooth muscle cell, lacking myofibrils. From this derivation, Stout and Murray² chose the term hemangiopericytoma.

Morphologic variations in tissue culture growths have made exact identification of the tumor cell type impossible.^* However, Murray and Stout⁵ have grown characteristic cells from glomus tumors which they feel are identical with the pericytes of Zimmermann.

PATHOLOGY

The primary tumors tend to be relatively large. In 11 of the cases reported by Stout³ in 1949 the mass exceeded 8.0 cm. in diameter. In the 14 cases of McCormack and Gallivan,⁶ the size varied from 5 to 13 cm. in the greatest diameter.

Except in very few, in which the tumor has been in the . . . [Full Text PDF of this Article]

Author Affiliations
Cleveland; Greensboro, N. C.

From the Departments of Dermatology and Pathology, Western Reserve University School of Medicine, and University Hospitals, and from the Department of Pathology, Moses H. Cone Memorial Hospital, Greensboro, N. C.

Footnotes
Submitted for publication May 20, 1955.

Read before the Section on Dermatology and Syphilology at the 104th Annual Meeting of the American Medical Association, Atlantic City, June 7, 1955.

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