Ductal carcinoma in situ within a fibroadenoma: A case report and review of literature

Table 1 Differential diagnosis microcalcifications within a nodule

Diagnosis	Description of microcalcifications
Ductal carcinoma in situ within fibroadenoma	Fine or linear pleomorphic
Fat necrosis	Coarse calcifications and round or curvilinear calcifications in cyst wall
Initial degenerating fibroadenoma	Numerous, dense and peripherical located in a nodule and the coarse pathognomonic calcifications
Benign or malignant phyllodes tumor	Coarse, amorphous, and punctuate
Phyllodes tumor with carcinoma component	Benign-looking specks or suspicious coarse punctate
Triple-negative tumor	Clustered microcalcifications
Mucinous carcinoma	Round, coarse, amorphous and/or rarely pleomorphic
Papillary carcinoma	Pleomorphic, coarse, or stippled
Metaplastic carcinoma	Amorphous, fine pleomorphic, fine linear, and lastly coarse heterogeneous