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Plaque Variant of Trichoblastic Fibroma

Plaque Variant of Trichoblastic Fibroma Abstract We read with interest the article by Altman et al1 published in the February 1995 issue of the Archives. The authors reported a series of 10 cases of trichoblastic fibroma and they described a plaque variant of this neoplasm as a new and previously undescribed clinicopathologic variant of trichoblastic fibroma. We have some reservations about the terminology used in this article, such as the naming of the benign follicular neoplasms composed of germinative cells, and about the conclusions of the authors. In 1970 Headington2 described the hair germ tumors as benign epithelial-mesenchymal neoplasms of the skin in which hair follicle development may be partly or completely recapitulated. The epithelial component was interpreted as equivalent to the hair germ and the mesenchymal component as equivalent to the follicular papilla. Depending on the combination of epithelial and mesenchymal components and the evidence of what Headington termed stromal induction, he classified References 1. Altman DA, Mikhail GR, Johnson TM, Lowe L. Trichoblastic fibroma: a series of 10 cases with report of a new plaque variant . Arch Dermatol. 1995; 131:198-201.Crossref 2. Headington JT. Differentiating neoplasms of hair germ . J Clin Pathol. 1970; 23:464-471.Crossref 3. Headington JT. Tumors of hair follicle: a review . Am J Pathol. 1976;85:480-505. 4. Headington JT. Tumors of hair follicle differentiation . In: Farmer ER, Hood AF, eds. Pathology of the Shin . East Norwalk, Conn: Appleton & Lange; 1990: 596-614. 5. Ackerman AB, de Viragh PA, Chongchitnant N. Neoplasms With Follicular Differentiation . Philadelphia, Pa: Lea & Febiger; 1993:359-422. 6. Requena L, Requena I, Romero E, Sánchez M, Sánchez Yus E. Trichogenic trichoblastoma: an unusual tumor of hair germ . Am J Dermatopathol. 1990; 12:175-181. 7. Requena L, Renedo G, Sarasa JL, Hasson A, de Castro A. Trichoblastic fibroma . J Cutan Pathol. 1990;17:381-384.Crossref 8. Kaserer C, Hantich B. Trichogenic tumors . Arch Dermatol. 1995;131:1464.Crossref 9. Requena L, Barat A. Giant trichoblastoma on the scalp . Am J Dermatopathol. 1993;15:497-502.Crossref 10. Soria L, Ruiz P, Sánchez Yus E. Histología regional de la cara . PIEL. 1995; 10:378-382. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Dermatology American Medical Association

Plaque Variant of Trichoblastic Fibroma

Archives of Dermatology , Volume 132 (11) – Nov 1, 1996

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Publisher
American Medical Association
Copyright
Copyright © 1996 American Medical Association. All Rights Reserved.
ISSN
0003-987X
eISSN
1538-3652
DOI
10.1001/archderm.1996.03890350132027
Publisher site
See Article on Publisher Site

Abstract

Abstract We read with interest the article by Altman et al1 published in the February 1995 issue of the Archives. The authors reported a series of 10 cases of trichoblastic fibroma and they described a plaque variant of this neoplasm as a new and previously undescribed clinicopathologic variant of trichoblastic fibroma. We have some reservations about the terminology used in this article, such as the naming of the benign follicular neoplasms composed of germinative cells, and about the conclusions of the authors. In 1970 Headington2 described the hair germ tumors as benign epithelial-mesenchymal neoplasms of the skin in which hair follicle development may be partly or completely recapitulated. The epithelial component was interpreted as equivalent to the hair germ and the mesenchymal component as equivalent to the follicular papilla. Depending on the combination of epithelial and mesenchymal components and the evidence of what Headington termed stromal induction, he classified References 1. Altman DA, Mikhail GR, Johnson TM, Lowe L. Trichoblastic fibroma: a series of 10 cases with report of a new plaque variant . Arch Dermatol. 1995; 131:198-201.Crossref 2. Headington JT. Differentiating neoplasms of hair germ . J Clin Pathol. 1970; 23:464-471.Crossref 3. Headington JT. Tumors of hair follicle: a review . Am J Pathol. 1976;85:480-505. 4. Headington JT. Tumors of hair follicle differentiation . In: Farmer ER, Hood AF, eds. Pathology of the Shin . East Norwalk, Conn: Appleton & Lange; 1990: 596-614. 5. Ackerman AB, de Viragh PA, Chongchitnant N. Neoplasms With Follicular Differentiation . Philadelphia, Pa: Lea & Febiger; 1993:359-422. 6. Requena L, Requena I, Romero E, Sánchez M, Sánchez Yus E. Trichogenic trichoblastoma: an unusual tumor of hair germ . Am J Dermatopathol. 1990; 12:175-181. 7. Requena L, Renedo G, Sarasa JL, Hasson A, de Castro A. Trichoblastic fibroma . J Cutan Pathol. 1990;17:381-384.Crossref 8. Kaserer C, Hantich B. Trichogenic tumors . Arch Dermatol. 1995;131:1464.Crossref 9. Requena L, Barat A. Giant trichoblastoma on the scalp . Am J Dermatopathol. 1993;15:497-502.Crossref 10. Soria L, Ruiz P, Sánchez Yus E. Histología regional de la cara . PIEL. 1995; 10:378-382.

Journal

Archives of DermatologyAmerican Medical Association

Published: Nov 1, 1996

References