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Postauricular sebaceous carcinoma arising in association with nevus sebaceus

Authors

  • Joseph Rinaggio DDS, MS,

    Corresponding author
    1. Department of Oral Pathology, Biology, and Diagnostic Sciences, Rm. C-829, University of Medicine and Dentistry of New Jersey—New Jersey Dental School, 110 Bergen Street, Newark, New Jersey 07103-2400
    • Department of Oral Pathology, Biology, and Diagnostic Sciences, Rm. C-829, University of Medicine and Dentistry of New Jersey—New Jersey Dental School, 110 Bergen Street, Newark, New Jersey 07103-2400
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  • H. Stan McGuff DDS,

    1. Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
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  • Randal Otto MD,

    1. Department of Otolaryngology–Head and Neck Surgery, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
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  • Charlene Hickson MD

    1. Department of Otolaryngology–Head and Neck Surgery, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
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  • James I. Cohen, MD, PhD, Section Editor

Abstract

Background

Sebaceous carcinoma is an uncommon malignant neoplasm usually associated with the ocular adnexa. Despite the widespread anatomic distribution of sebaceous glands, extraocular sebaceous carcinoma occurs with far less frequency.

Methods

A 27-year-old man was examined with the presenting complaint of a slowly enlarging subcutaneous mass. It was associated with an overlying, irregular, verrucoid epidermal plaque.

Results

Histologic and electron microscopic examination of the mass revealed a malignant sebaceous neoplasm occurring in conjunction with an overlying nevus sebaceus. The dermal neoplasm contained numerous cytoplasmic and stromal hyaline globules.

Conclusions

We report a case of extraocular sebaceous carcinoma arising in the postauricular region in association with a nevus sebaceus and exhibiting the unusual histologic feature of hyaline globules. © 2002 John Wiley & Sons, Inc.

Ancillary