"Phyllodes tumor"

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Benign Phyllodes Tumors Histology (Note the difference between Fibroadenoma)

Benign Phyllodes Tumors Histology (Note the difference between Fibroadenoma)

(a) Classical leaflike areas in a benign phyllodes tumor (H and E, ×40), (b) Benign phyllodes tumor and ductal carcinoma in situ (DCIS) (Ενδοσωληνωδες πρότυπο)

(a) Classical leaflike areas in a benign phyllodes tumor (H and E, ×40), (b) Benign phyllodes tumor and ductal carcinoma in situ (DCIS) (Ενδοσωληνωδες πρότυπο)

The neoplastic stroma in a high-grade malignant phyllodes tumor may be monomorphic with features of sarcoma, NOS; or it may be highly pleomorphic

The neoplastic stroma in a high-grade malignant phyllodes tumor may be monomorphic with features of sarcoma, NOS; or it may be highly pleomorphic

Malignant Phyllodes Tumor (Cystosarcoma Phyllodes)

Malignant Phyllodes Tumor (Cystosarcoma Phyllodes)

The tumor nodules are lined by benign epithelial cells. The characteristic clefts are formed as the stroma becomes more prominent

The tumor nodules are lined by benign epithelial cells. The characteristic clefts are formed as the stroma becomes more prominent

Invasive ductal carcinoma (black arrow) detected within a region of spindle cells (blue arrow) in the phyllodes tumor

Invasive ductal carcinoma (black arrow) detected within a region of spindle cells (blue arrow) in the phyllodes tumor

High power view of benign phyllodes tumour showing a stromal mitosis

High power view of benign phyllodes tumour showing a stromal mitosis

A malignant phyllodes tumour

A malignant phyllodes tumour

Malignant

Malignant

Phyllodes tumor in a 52 yo woman

Phyllodes tumor in a 52 yo woman

Borderline Phyllodes Tumor: There are leaf like projections with condensation of cellular stroma

Borderline Phyllodes Tumor: There are leaf like projections with condensation of cellular stroma

The stroma is quite hypercellular in this case of low-grade phyllodes tumor. Fibroblasts are arranged in a myxoid background.

The stroma is quite hypercellular in this case of low-grade phyllodes tumor. Fibroblasts are arranged in a myxoid background.

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