Sonographic characteristics of apocrine nodular Hidradenoma of the skin

Ximena Wortsman*, Carlos Reyes, Camila Ferreira-Wortsman, Alberto Uribe, Carlos Misad, Sergio Gonzalez

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Nodular hidradenomas are benign sweat gland-derived tumors that can produce clinical and dermatoscopic misdiagnoses. Histologically, these tumors can be classified into eccrine and apocrine subtypes. We present the sonographic characteristics of 6 cases of apocrine nodular hidradenomas, which, to our knowledge, is so far the largest series reported. A detailed sonographic analysis included layers, body location, shape, diameters, echostructure patterns, and vascularity. Two sonographic signs not previously reported in these or other common dermatologic lesions were detected: “snow falling” and “fluid-fluid level.” The sonographic characteristics of apocrine nodular hidradenomas can support their earlier and more precise diagnosis.

Original languageEnglish
Pages (from-to)793-801
Number of pages9
JournalJournal of Ultrasound in Medicine
Issue number3
StatePublished - 1 Mar 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 by the American Institute of Ultrasound inMedicine.


  • Dermatologic ultrasound
  • Dermatology
  • Hidradenoma
  • Hidradenoma ultrasound
  • Nodular hidradenoma ultrasound
  • Skin ultrasound
  • Sweat gland tumor ultrasound


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