Breast, fibroadenoma [LMP92409]

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Diagnostic Modality: 
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Disease Category: 
Neoplasia
Diagnosis: 
Fibroadenoma
Species: 
Human
Organ System: 
Breast
Gender: 
Female
Age: 
41 years
Diagnosis Code: 
ICD-10: D24 | ICD-O: 9011/0
Slide Contributor Information
Hosseini, N., Chang, M.

Keywords

fibroepithelial, intracanalicular

Clinical History

Well-circumscribed breast mass.

Clinical Discussion

Fibroadenomas are benign tumors of breast. They are common in women under 30, but may be seen at any age. They usually present as firm, well-circumscribed nodules with lobulated cut surface on gross examination. Histologically they are characterized by stromal growth with uniform and mild cellularity, with accompanying benign glandular growth.

This case is typical of a fibroadenoma with intracanalicular pattern (“intracanalicular fibroadenoma”), in which the glands are distorted and compressed by stroma and form mosaic-like clefts.