False. This is a crucial advantage of TMA that promotes tissue conservation. The process involves using a thin, hollow needle (a tissue punch) to extract a cylindrical core, typically only 0.6mm to 2mm in diameter and a few millimeters deep. This creates a very small, pin-sized hole in the original 'donor' paraffin block. The vast majority of the tissue in that donor block remains completely intact and undisturbed. This means the original diagnostic block—a precious and often irreplaceable resource—is preserved for future clinical needs, such as additional stains for patient care, or for other research projects. The TMA approach is therefore minimally destructive, allowing maximal information to be gleaned from archival tissue collections while safeguarding the original material. This is ethically and practically important in pathology.

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Zambia

• Naomi Miselo – 31 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies