Alhaskawi Ahmad, Zhou Haiying, Dong Yanzhao, Lai Jingtian, Wang Zewei, Hasan Abdullah Ezzi Sohaib, Goutham Kota Vishnu, Hasan Abdulla Hasan Abdulla Mohamed, Sun Zhenyu, Lu Hui
Department of Orthopedics, the First Affiliated Hospital, Zhejiang University, Hangzhou, China.
Department of Orthopedic, Zhejiang University School of Medicine, Hangzhou, China.
Front Surg. 2023 Jan 17;9:1008358. doi: 10.3389/fsurg.2022.1008358. eCollection 2022.
An intraosseous epidermoid cyst at the distal phalanx of the index finger is extremely rare. These cysts are asymptomatic unless ruptured, severely infected, or transformed into malignant squamous cell carcinoma. We present a case of a single clubbing finger in an adult diagnosed with an intraosseous epidermoid cyst in the distal phalanx of the left index finger with no history of pulmonary or cardiovascular diseases. Preoperative MRI showed an expansile lytic lesion with a sclerotic margin. Histopathological examination indicates that there is keratinous cell debris in the cyst with a wall of stratified squamous epithelium, which was the key to the correct diagnosis of an intraosseous epidermoid cyst. Written informed consent was obtained from the patient for publication of this case report and any accompanying images.
食指远节指骨的骨内表皮样囊肿极为罕见。这些囊肿通常无症状，除非破裂、严重感染或转变为恶性鳞状细胞癌。我们报告一例成年患者，其左食指远节指骨诊断为骨内表皮样囊肿，表现为单指杵状指，无肺部或心血管疾病史。术前MRI显示为边界硬化的膨胀性溶骨性病变。组织病理学检查表明囊肿内有角质形成细胞碎片，囊壁为复层鳞状上皮，这是正确诊断骨内表皮样囊肿的关键。已获得患者的书面知情同意，同意发表本病例报告及任何附带图像。
