Salivary glands
Primary salivary gland neoplasms - benign
Dermal analogue tumor

Topic Completed: 1 September 2012

Revised: 17 May 2019

Copyright: 2003-2019,, Inc.

PubMed Search: Dermal analogue tumor salivary

See also: Basal cell adenoma

Adriana Handra-Luca, M.D.
Page views in 2019 to date: 15
Cite this page: Handra-Luca A. OLD Dermal analogue tumor (moved content to Basal cell adenoma). website. Accessed October 21st, 2019.
Definition / general
  • Uncommon subtype of basal cell monomorphic adenoma with clinical and histological resemblance to dermal cylindroma
  • First described in 1974 by Drut and in 1977 by Headington and Reingold (Cancer 1977;39:2460, Cancer 1977;40:1702)
  • Also called membranous tumor
Clinical features
  • Usually in parotid gland or intranodal parotid gland, ectopic salivary gland in lymph nodes (periparotid, cervical, Cancer 1987;59:1165)
  • Sporadic or familial
  • Histogenesis: germinal epithelium of ectodermal origin
  • Usually men, mean age 60 years old
  • 25 - 38% have cutaneous tumors
  • Occasionally coexists with multiple dermal cylindromas (Brooke-Spiegler syndrome, autosomal dominant salivary gland - skin adnexal tumor syndrome, Head Neck 2010;32:684), Warthin tumor
  • Multicentricity and multiple recurrencies
  • Long period of followup required
  • Treat with resection but 25 - 37% recur, 28% undergo malignant transformation to basaloid adenocarcinoma with destructive infiltrative growth beyond gland margins and perineurial or vascular invasion but not necessarily pleomorphism, necrosis or mitotic activity
Gross description
  • Usually unencapsulated, 50% multifocal, up to 3.5 cm
Cytology description
Positive stains
Molecular / cytogenetics description
Differential diagnosis
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