病人男,22岁。3月前行颌下囊状淋巴管瘤切除术,伤口Ⅰ期愈合。出院半月后颌下包块复发,而来我院求治。查体见左颌下饱满,下颌角前内侧皮下可触及一4cm×4cm包块,呈圆形,基底界限不甚清,质柔软,压有波动并有轻度胀痛,不能缩小,活动度稍差,未闻及血管杂音。诊断为左颌下囊状淋巴管瘤术后复发,予以 Male patient, 22 years old. The submandibular cystic lymphangioma was removed before March, and the wound healed on the first phase. Half a month after discharge, submandibular mass recurred and he came to our hospital for treatment. The examination showed that the left submandibular area was full, and a 4cm x 4cm mass was palpable under the anterior medial submandibular angle. It was round and had a poor basal border. It was soft, and there were fluctuations and slight tenderness. It could not be reduced. Worse, no murmurs were heard. Diagnosis is recurrence of submandibular cystic lymphangioma after surgery.