Giant malignant Chondroid Syringoma: Case Report and Literature Review

Abstract

Chondroitin syringoma, also known as cutaneous mixed tumor, is a rare type of sweat gland tumor, accounting for 0.01% to 0.1% of all primary tumors of the skin. The malignant form is extremely rare, with 41 cases described so far. It predominates in the trunk and distal extremities and affects women more frequently, with a 3: 2 rate 6,7. Patients may reach the health service with large lesions due to the fact of being slow-growing lesions and have a high rate of recurrence, requiring surgical treatment that may lead to extensive defects making complex reconstructions necessary. We present a case of malignant chondroid syringoma in an 80 years old male patient, with 29 years of evolution and unusual size. A reconstruction was performed with a muscular dorsal flap of the latissimus dorsi with good aesthetic and functional results, with no signs of recurrence after 8 months of follow-up. It is concluded that because it is a late diagnosis neoplasia, the surgical treatment ends up generating expressive defects. There for musculocutaneous should be considered as an option for reconstruction, aiming optimal functional and aesthetic restoration.