Which histologic findings are characteristic of gynecomastia?

Updated: Mar 22, 2018
  • Author: George Ansstas, MD; Chief Editor: George T Griffing, MD  more...
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Characteristic findings include proliferation of ductules and stroma (consisting of connective-tissue elements such as fibroblasts, collagen, and myofibroblasts) and occasional acini. Gynecomastia of short duration consists of a prominent ductular component with loose stroma. Long-standing gynecomastia consists of dense stroma with few ductules.

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