The case presentation involves a 51-year-old male with a diagnosis of moderately differentiated keratinizing squamous cell carcinoma located in the right gingivobuccal mucosa and sulcus. Following extensive surgical resection, including right partial mandibulectomy, partial maxillectomy, and modified radical neck dissection, reconstruction was performed using kidney-shaped pectoralis major myocutaneous (PMMC) flap. This method aims to overcome the shortcomings of conventional flap designs by offering a reconstruction that is more customized and practical.

Keywords: Kidney-shaped flap; Oral pathology; Oral squamous cell carcinoma; PMMC flap; Reconstruction option.

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病例介绍涉及一名51岁男性，诊断为右龈颊黏膜和沟内中度分化角化鳞状细胞癌。经过广泛的手术切除，包括右侧部分下颌骨切除、部分上颌骨切除以及改良根治性颈部清扫术后，使用肾形胸大肌皮瓣（PMMC）进行重建。这种方法旨在克服传统皮瓣设计的不足，提供更加定制和实用的重建方案。

关键词：肾形皮瓣；口腔病理学；口腔鳞状细胞癌；PMMC皮瓣；重建选择。

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