Background: Melanocytoma is a rare pigmented central nervous tumor. In the spine, it may develop in meninges, extramedullary or intramedullary. It usually has good outcome after total excision.
 Case report:
 A 40-year-old male patient was admitted to our hospital 12 years ago with 3-month history of progressive neck pain and difficulty walking. On clinical examination, he showed uppe...

We report an unusual case of a malignant blue nevus in a five-year-old girl, which turned out to be malignant only after the development of lymph node metastases three years after the excision of the primary tumor on the patient's cheek. A functional bilateral neck dissection was performed and the patient is alive with no evidence of disease 8 years after the excision of the primary skin lesion.

638 Ann Dermatol Received April 5, 2016, Revised September 7, 2016, Accepted for publication September 9, 2016 Corresponding author: Sang Seok Kim, Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, 150 Seongan-ro, Gangdong-gu, Seoul 05355, Korea. Tel: 82-2-2224-2285, Fax: 82-2-474-7918, E-mail: [email protected] This is an Open Access article dist...

Dentigerous cysts are benign odontogenic cysts that are associated with the crowns of permanent teeth. They are usually single in occurrence and located in the mandible. Multiple cysts are reported in patients with conditions such as mucopolysaccharidosis and basal cell nevus syndrome. We present the radiologic findings of bilateral impacted maxillary cuspids with dentigerous cysts displacing t...