PMC9992177_01
(A) Preoperative pathological pictures of the patient; (B) CT image on POD 7. Images showed that the drainage tube was located outside the esophageal cavity; (C) CT image on POD 37 showed that the cervical drainage tube went deep into the stomach.  , cervical drainage tube;  , gastric tube; *, duodenal nutrient tube;  , esophageal cavity;  , stomach.
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F1
The gastroscope revealed a neoplasm 23-30 cm away from the upper incisors, and the biopsy indicated squamous cell carcinoma (SCC) (Figure 1A). After reviewing the radiographic images retrospectively, we noticed that the drainage tube was located outside the esophageal cavity when the leakage emerged on POD 7 (Figure 1B) but the CT on POD 37 showed that the cervical drainage tube went deep into the stomach (Figure 1C), a video of continuous slices of CT was available (Supplementary Video S1), which explained why the neck has a lot of drainages.
PMC9992177_02
(A) Preoperative gastroscopic pictures of the patient; (B) esophagography on POD 57, contrast agent was drained through the cervical drainage tube; (C) CT on POD 8, the cervical drainage clung to the esophageal wall but not penetrate into; (D) three slices of CT images on POD 12 showed the extend of the cervical drainage tube from the cervical wound to the esophageal cavity.  , cervical drainage tube;  , gastric tube;  , esophageal cavity.
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F2
The gastroscope revealed a neoplasm 27-30 cm away from the upper incisors, and the biopsy indicated SCC (Figure 2A). After a period of conservative management, the esophagography on POD 57 showed that the contrast agent was drained through the cervical drainage tube, indicating the leakage failed to heal (Figure 2B). CT revealed that the neck drainage tube did not penetrate the esophageal lumen on POD 8 but was close to the esophageal wall (Figure 2C), which made it possible for the neck drainage tube to penetrate the esophageal lumen, and the neck drainage tube had penetrated the esophageal lumen since POD 12 (Figure 2D). Considering the cervical drainage tube penetrated the anastomotic stoma, the tube was removed immediately (POD 57).
Timelines for the presented cases indicating important events including diagnosis, detailed preoperative baseline data, auxiliary treatment, surgical plan, and postoperative management during the perioperative period.
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F3