title: Malignant chondroid syringoma of the pinna.
abstract: Chondroid syringoma (CS) represents the cutaneous counterpart of mixed tumor (pleomorphic adenoma) of salivary glands. The malignant counterpart of CS, termed as "malignant CS" is a malignant eccrine neoplasm which lacks distinctive clinical features, often delaying initial diagnosis. Unlike its benign counterpart which often localizes in the head and neck region, malignant CS most often encountered in the trunk and the extremities. We report a rare case of an aggressive malignant CS of the left pinna with cervical lymph node metastasis. Our patient, to the best of our knowledge, possibly is the first case of malignant CS of the pinna and the fourth to arise in the head and neck region. The diagnostic challenges with an added emphasis on the role of positron emission tomography-computed tomography in aiding the management of this rare tumor are discussed.
authors.affiliation: Department of Surgical Oncology, Tata Memorial Center, Adyar, Chennai, Tamil Nadu, India.
authors.forename: Arvind
authors.initials: A
authors.lastname: Krishnamurthy
authors.affiliation: Department of Surgical Oncology, Cancer Institute (WIA), Adyar, Chennai, Tamil Nadu, India.
authors.forename: Niharika
authors.initials: N
authors.lastname: Aggarwal
authors.affiliation: Department of Surgical Oncology, Cancer Institute (WIA), Adyar, Chennai, Tamil Nadu, India.
authors.forename: Suhail
authors.initials: S
authors.lastname: Deen
authors.affiliation: Department of Pathology, Cancer Institute (WIA), Adyar, Chennai, Tamil Nadu, India.
authors.forename: Urmila
authors.initials: U
authors.lastname: Majhi
authors.affiliation: Department of Preventive Oncology, Cancer Institute (WIA), Adyar, Chennai, Tamil Nadu, India.
authors.forename: Vijayalakshmi
authors.initials: V
authors.lastname: Ramshankar
keywords: Ear tumors; malignant chondroid syringoma; pleomorphic adenoma; skin tumors