Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
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Case Report

Volume 17, Number 12, December 2026, pages 702-706

Ductal Carcinoma In Situ in a Complex Fibroadenoma

Figures

↓  Figure 1. Color Doppler ultrasound of the right breast demonstrating a 2.8 cm, well-circumscribed, oval, hypoechoic mass with mild lobulation, mild internal heterogeneity, parallel orientation, and mild internal and external vascularity.
Figure 1.
↓  Figure 2. Histopathological and immunohistochemical findings of ductal carcinoma in situ arising within a complex fibroadenoma. (a) H&E section demonstrating fibroadenomatous architecture. (b, c) H&E sections demonstrating atypical ductal hyperplasia and low-grade ductal carcinoma in situ. (d) Estrogen receptor (ER) immunostaining. (e) CK5/6 immunostaining. H&E: hematoxylin and eosin stain; CK: cytokeratin.
Figure 2.