Ann Dermatol.  2019 Feb;31(1):14-21. 10.5021/ad.2019.31.1.14.

Clinical Features and Association with Visceral Malignancy in 80 Patients with Sebaceous Neoplasms

Affiliations
  • 1Department of Dermatology, Gangnam Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea. karenroh@yuhs.ac
  • 2Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea.
  • 3Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.

Abstract

BACKGROUND
Sebaceous neoplasm is a rare subgroup of appendageal tumors that differentiate towards sebaceous adnexal structures of the skin and are known to be associated with visceral malignancy.
OBJECTIVE
We aimed to analyze and compare the clinical data including the past history of associated visceral malignancy in patients with sebaceous carcinoma (SC) and benign sebaceous neoplasms (BSN), such as sebaceous adenomas and sebaceomas.
METHODS
We retrospectively reviewed the cases of consecutive patients diagnosed with sebaceous neoplasms. Basic demographic data, past medical history, and clinical data regarding the size, location, and presence of associated visceral malignancies were evaluated.
RESULTS
A total of 80 patients of sebaceous neoplasms (51 SC, 29 BSN) were included. A total of 18 associated visceral malignancies were found in 14 patients (8 SC, 6 BSN). Two patients were diagnosed with subsequent visceral malignancies during the primary work-up process for sebaceous neoplasms. The mean age at diagnosis of the visceral malignancies was 63.9 and 47.5 years for patients with SC and BSN, respectively. The most common site of visceral malignancies was the gastrointestinal (GI) tract. Adenocarcinoma was the most common histologic type of the visceral malignancy noted.
CONCLUSION
We observed associated visceral malignancies in 15.7% of patients with SC and 20.7% with BSN. Our results suggest a need for screening of visceral malignancies, especially of the GI tract, in patients with sebaceous neoplasms.

Keyword

Sebaceoma; Sebaceous adenoma; Sebaceous carcinoma; Visceral malignancy

MeSH Terms

Adenocarcinoma
Adenoma
Diagnosis
Gastrointestinal Tract
Humans
Mass Screening
Retrospective Studies
Skin

Figure

  • Fig. 1 Clinical presentations of sebaceous neoplasms. (A) Extraocular sebaceous carcinoma presenting as a crusted yellowish nodule with erythematous base on the neck. (B) Sebaceous adenoma presenting as an erythematous nodule with central umbilication on the left cheek.

  • Fig. 2 Histopathologic presentations of sebaceous neoplasms. (A, B) Sebaceous carcinoma. (A) Multilobular basaloid tumors are associated with epidermal ulceration (H&E, ×40). (B) The constituent cells, both basaloid cells and sebocytes, demonstrate marked cytologic atypia and mitotic activity (H&E, ×400). (C, D) Benign sebaceous neoplasms. The tumor is composed of enlarged sebaceous lobules with two types of mature cells: sebaceous and basaloid cells (H&E, ×100). (C) Sebaceous cells predominate in sebaceous adenoma and (D) basaloid cells in sebaceoma (H&E, ×100).


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