Myxoid lesions

Myxoid lesions occasionally appear on the pathologist's desk. The differential diagnosis is very large, as many lesions have a myxoid variant.

Myxoid stroma

Features:

• Stroma has a pale/blue appearance.

Gastrointestinal pathology

• Inflammatory fibroid polyp.

Gynecologic pathology

• Myxoid liposarcoma.

Soft tissue pathology

• Low-grade fibromyxoid sarcoma.
• Myxoid liposarcoma.
• Spindle cell lipoma.
• Extraskeletal myxoid chondrosarcoma.
• Myxoid chondrosarcoma.
• Aggressive angiomyxoma.
• Myxoid malignant peripheral nerve sheath tumour.
• Myxoid desmoid fibromatosis.
• Intramuscular myxoma.

Dermatopathology

• Myxoma.
• Myxoid DFSP.
• Basal cell carcinoma.
• Myxoid neurofibroma.

Breast pathology

• Phyllodes tumour.
• Fibroadenoma.
• Myxoid fibroadenoma.

Kidney pathology

Renomedullary interstitial cell tumour.

Salivary gland pathology

• Pleomorphic adenoma.

Cardiac pathology

• Atrial myxoma.

Neuropathology

• Pilomyxoid astrocytoma.
• Myxopapillary ependymoma.
• Chordoma.
• Chordoid meningioma.

Chondromyxoid stroma

Features:

• Cells in pseudonests.
• Surrounding stroma bluish.

Salivary gland pathology

• Pleomorphic adenoma.

Dermatopathology

• Chondroid syringoma.

See also

• Long power list.