case_images: PMC11787910_01
case_images: Findings in cases with jaundice or darker skin color. (A and B) Case 1 (with jaundice): in this case, jaundice (serum total bilirubin level: 8.7 mg/dL) made it difficult to visualize the BT light emitted from the stomach in a brightly lit environment. However, dimming the surrounding lights improved visibility, enabling the precise identification of the nasogastric tube tip position. (C and D) Case 4 (with dark skin color): similarly, in this case, darker skin pigmentation (Fitzpatrick skin types IV-V) also posed a challenge for visualizing the BT light in a brightly lit environment. By dimming the surrounding lights, the BT light became clearly visible, allowing the accurate identification of the nasogastric tube tip position. BT: biologically transparent
case_images: cureus-0017-00000076871-i02.jpg
case_images: PMC11787910_01_cureus-0017-00000076871-i02.jpg
case_images: FIG2
case_images: In a girl with jaundice due to biliary atresia (serum total bilirubin level of 8.7 mg/dL) and a boy with darkly pigmented skin, the visibility of the red transillumination light was recognized to be slightly reduced, likely due to skin color (Figure 2).
case_images: Findings in cases with other organs positioned anterior to the stomach. (A-D) In cases 3 (A and B) and 5 (C and D), preoperative CT scans revealed that the left lobe of the liver was positioned anterior to the stomach. Despite this anatomical configuration, the BT light emitted from within the stomach was easily visible on the body surface, without any problems. (E) In case 2, a transverse colostomy was positioned anterior to the stomach. Despite this anatomical arrangement, the BT light emitted from within the stomach was clearly visible on the body surface without any problems. BT: biologically transparent
case_images: cureus-0017-00000076871-i03.jpg
case_images: PMC11787910_01_cureus-0017-00000076871-i03.jpg
case_images: FIG3
case_images: In one case where a transverse colostomy overlapped the stomach in the left upper abdomen and in two cases where preoperative CT scans revealed that the left lobe of the liver overlapped the anterior aspect of the stomach, the red transillumination light successfully penetrated the abdominal wall and was clearly visible on the body surface (Figure 3).