Depiction of the posterior lamina of the fascia thoracolumbalis (FTL; yellow arrows) and anterior lamina (white open arrows). The anterior and posterior lamina unite in the lateral raphe (red oval). A venous vessel runs from the lateral raphe to the skin (asterisk). The epimysium (white arrow) of the erector spinae muscle inseparable from the fascia thoracolumbalis (FTL) near the spinous process. Superficial (two asterisks) and deep (three asterisks) subcutaneous fascia