Department of Dermatology, University of Health Sciences, Haydarpaşa Numune Training and Research Hospital, İstanbul, Turkey.
Department of Pathology, University of Health Sciences, Haydarpaşa Numune Training and Research Hospital, İstanbul, Turkey.
Int J Dermatol. 2018 Jul;57(7):872-881. doi: 10.1111/ijd.14003. Epub 2018 Apr 27.
Subungual exostosis (SE) and subungual osteochondroma (SO) are an uncommon, benign tumor of the distal phalanx. The purpose of this retrospective study was to evaluate clinical, demographical, and radiological features; treatment modalities; and follow-up results in SE and SO cases.
Twenty-five cases were confirmed histopathologically as SE or SO. At the time of admission, clinical data were obtained on the age and sex of the patient, duration of symptoms, presence of pain, previous diagnoses and treatments, concomitant systemic diseases, family history, lesional localization, clinical and radiological features of the lesion, surgical treatment methods, and duration of follow-up.
There were 14 patients in the SE group and 11 patients in the SO group. There was no statistically significant difference in gender, age, duration of symptoms, or pain between the two groups. Regarding the locations of the lesions, two (14.28%) were on the hands, 12 (85.72%) lesions were on the toes, 11 (91.67%) of which were on the great toe, and one (8.33%) was on the small toe of the left foot in the SE group. All the osteochondroma lesions were located on the toes. In five (45%) cases, the lesion was on the great toe. Two patients had residual lesions in the SE group. Recurrence occurred in one case in the SO group.
Clinically and histopathologically, SE and SO appear to be two different entities. When diagnosed correctly and treated appropriately, the lesions have good functional and cosmetic results, as well as a very low recurrence rate.
甲下外生骨疣（SE）和甲下骨软骨瘤（SO）是一种少见的、发生于指（趾）末节的良性肿瘤。本回顾性研究的目的在于评估 SE 和 SO 的临床、人口统计学和影像学特征、治疗方法和随访结果。
25 例患者经组织病理学证实为 SE 或 SO。在入院时，我们获取了患者的年龄和性别、症状持续时间、疼痛存在情况、既往诊断和治疗、伴随的系统性疾病、家族史、病变定位、病变的临床和影像学特征、手术治疗方法以及随访时间等临床数据。
SE 组 14 例，SO 组 11 例。两组患者在性别、年龄、症状持续时间和疼痛方面无统计学差异。在病变部位方面，SE 组中 2 例（14.28%）发生于手部，12 例（85.72%）发生于足部，其中 11 例（91.67%）位于大脚趾，1 例（8.33%）位于左足小脚趾；SO 组所有的骨软骨瘤病变均位于足部，5 例（45%）位于大脚趾。SE 组中有 2 例患者残留病变，1 例 SO 组患者复发。
从临床和组织病理学角度来看，SE 和 SO 似乎是两种不同的实体。如果正确诊断并进行适当治疗，病变可获得良好的功能和美容效果，且复发率非常低。
