Chromoblastomycosis can mimic keratocanthoma

K. Wiss, M. C. McNeely, Alvin Jr Solomon

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A 59-year-old white man presented to the Dermatology Clinic at the University of Texas Medical Branch with a verrucous nodule on the right forearm. The patient was a retired woodworker. He had polymyositis with pulmonary fibrosis for 5 years. Prednisone and methotrexate were required to control his disease. A crusted verrucous nodule 2.5 by 2.5 cm in diameter with adjacent similar-sized atrophic scars were present on the extensor surface of the right forearm. This particular nodule had been present for 2 years, and its growth was characterized by a rapid onset with progressive enlargement and intermittent partial regression. The adjacent scars represented similar lesions that had spontaneously regressed. Although the patient had not worked since his illness began, he continued to actively pursue woodworking as a hobby. Histologic sections of the excised nodule revealed massive pseudoepitheliomatous hyperplasia with prominent hyperkeratosis. Intraepidermal microabscesses were numerous and a suppurative neutrophilic infiltrate with scattered foreign body type multinucleated giant cells was present in the dermis. At higher magnification, numerous light brown yeasts, approximately 10 μm in diameter were noted both within the giant cells and free within the dermis. Chains of yeast cells were common. These histologic findings are diagnostic of chromoblastomycosis.

Original languageEnglish (US)
Pages (from-to)385-386
Number of pages2
JournalInternational Journal of Dermatology
Volume25
Issue number6
StatePublished - 1986
Externally publishedYes

Fingerprint

Chromoblastomycosis
Giant Cells
Dermis
Forearm
Cicatrix
Yeasts
Foreign Body Giant Cells
Hobbies
Polymyositis
Pulmonary Fibrosis
Dermatology
Prednisone
Methotrexate
Hyperplasia
Growth

ASJC Scopus subject areas

  • Dermatology

Cite this

Wiss, K., McNeely, M. C., & Solomon, A. J. (1986). Chromoblastomycosis can mimic keratocanthoma. International Journal of Dermatology, 25(6), 385-386.

Chromoblastomycosis can mimic keratocanthoma. / Wiss, K.; McNeely, M. C.; Solomon, Alvin Jr.

In: International Journal of Dermatology, Vol. 25, No. 6, 1986, p. 385-386.

Research output: Contribution to journalArticle

Wiss, K, McNeely, MC & Solomon, AJ 1986, 'Chromoblastomycosis can mimic keratocanthoma', International Journal of Dermatology, vol. 25, no. 6, pp. 385-386.
Wiss K, McNeely MC, Solomon AJ. Chromoblastomycosis can mimic keratocanthoma. International Journal of Dermatology. 1986;25(6):385-386.
Wiss, K. ; McNeely, M. C. ; Solomon, Alvin Jr. / Chromoblastomycosis can mimic keratocanthoma. In: International Journal of Dermatology. 1986 ; Vol. 25, No. 6. pp. 385-386.
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