Sleibi Amir, Rahman Noura Abdul, Alzakri Alaa, Sultan Rayhan, Karou Serena Claude, Ishkhanian Silva
Faculty of Medicine, University of Aleppo, Aleppo, Syria.
Department of Dermatology, Faculty of Medicine, University of Aleppo, Aleppo, Syria.
Int J Surg Case Rep. 2024 Nov;124:110340. doi: 10.1016/j.ijscr.2024.110340. Epub 2024 Oct 14.
Post-traumatic ectopic nail (PTEN) refers to the abnormal growth of a new nail in a site other than the usual one, typically occurs after a trauma to the nail matrix. The exact pathogenesis is still unknown. This rare condition often affects the dorsal aspect of the phalanx. Surgical excision of the nail is the treatment of choice, with complete destruction of the nail matrix.
We report a case of an 18-year-old female presenting to the clinic with an asymptomatic keratotic lesion on the lateral aspect of the distal phalanx after 3 years of digit trauma. X-ray imaging of the affected finger was normal, without any bony deformity. The ectopic nail was surgically excised with cauterization of the matrix to prevent relapse.
Ectopic nails can be either congenital or acquired. Injuries can lead to PTEN formation by causing the germinal matrix to divide and implant into the skin. The ectopic nail in our case arises from the lateral aspect of the finger 3 years after trauma, which is an unusual occurrence.
The ectopic nail causes an aesthetical concern, usually with no other symptoms. However, surgical excision is necessary, with emphasis on the importance of cauterizing the matrix to prevent future relapse.
创伤后异位指甲（PTEN）是指在正常指甲以外的部位出现新指甲的异常生长，通常发生在指甲基质受到创伤之后。确切的发病机制尚不清楚。这种罕见病症常累及指骨背侧。手术切除指甲是首选治疗方法，需彻底破坏指甲基质。
我们报告一例18岁女性患者，手指外伤3年后，在远节指骨外侧出现无症状角化性病变并前来就诊。患指的X线影像正常，无任何骨质畸形。通过手术切除异位指甲并烧灼基质以防止复发。
异位指甲可分为先天性或后天性。损伤可通过使生发基质分裂并植入皮肤而导致创伤后异位指甲形成。我们病例中的异位指甲在创伤3年后出现在手指外侧，这是不寻常的情况。
异位指甲会引起美观问题，通常无其他症状。然而，手术切除是必要的，同时强调烧灼基质以防止未来复发的重要性。
