PMC9966163_01
(
A
) The ground glass nodule of approximately 0.7 cm in size in the lingual segment of the left upper lobe. (
B
) The three-dimensional reconstruction showed the ground glass nodule in S4 and the solid nodule in S1 and S2c. (
C
) The approximate extent of surgical planned resection of ground glass nodules and safe surgical margin. (
D
) The intersegmental fissure was separated with endostaplers. (
E
) Postoperative resected specimens and extent of surgical planned resection.
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PMC9966163_01_10-1055-s-0043-1760749-i0320220434crt-1.jpg
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 Using a three-dimensional (3D) reconstruction technique, a lesion was located in the lingual segment of the left upper lobe ( Fig. 1A ), in the S4, close to the S1, S2, and S3 ( Fig. 1B ). Therefore, surgery removing only S4 was not adequate, and resections of the S1, S2, and S3 were also required ( Fig. 1C ).  The intersegmental plane between the S4 and S5 lingular segments was split by staplers through the tunnel; we lifted out the S4, cut sections of the S3, S1 + 2c, and S4 together at the roots of the V3a + b and beyond with enough of a surgical margin on the labeled lung surface ( Fig. 1 ). The specimens were removed using specimen bags ( Fig. 1E ).
PMC9966163_02
(
A
) The ground glass nodule was located in the anterior segment of the upper left lobe. (
B
) Nodule located in S3, immediately adjacent to S4, S1, and S2. (
C
) The intersegmental fissure was separated with endostaplers. (
D
) Surgical resection specimens and extent of pre-operative planned resection specimens.
10-1055-s-0043-1760749-i0320220434crt-2.jpg
PMC9966163_02_10-1055-s-0043-1760749-i0320220434crt-2.jpg
FI0320220434crt-2
 The lesion was located in the anterior segment of the left upper lobe ( Fig. 2A ), and clearly in the S3a, close to the S1, S2c, and S4 ( Fig. 2B ). We lifted the S4, and parts of the S3a + S3b, S1 + 2c, and S4 were resected together at the roots of the V3a + b and V1 + 2d and beyond with enough of surgical margin on the labeled lung surface ( Fig. 2C ). Fig. 2 ). Frozen pathology showed that both GGNs were MIAs. 