[Scanning electron microscopy in malignant uveal melanomas (author's transl)]

Area of Science:

• Ophthalmology
• Oncology
• Cell Biology

Background:

• Uveal melanoma is the most common primary intraocular malignancy.
• Understanding tumor cell morphology is crucial for diagnosis and treatment.
• Scanning electron microscopy (SEM) offers high-resolution surface imaging.

Observation:

• Four malignant uveal melanomas were analyzed using SEM.
• Tumors included fascicular (subtype B), epithelioid, and mixed types.
• Distinct cell populations were identified within the tumors.

Findings:

• SEM revealed fusiform cells with long cytoplasmic processes and epithelioid cells lacking processes.
• The degree of microvilli development on the cell surface varied among cells.
• These morphological differences correlate with established uveal melanoma subtypes.

Implications:

• SEM can differentiate between fusiform and epithelioid cells in uveal melanoma.
• Cellular morphology observed via SEM may provide prognostic information.
• Further research can explore the functional significance of observed microvilli variations.