hiadradenocarcinoma is one of rare malignant adnexal tumor involving sweat gland with low metastatic potential which present as asymptomatic skin nodules. There are few case reports of hidradenocarcinoma in the literature. We are discussing about a case of hiradenocarcinoma in the submandibular region with a history of recurrence. The tumour range from locally recurring, low grade well differentiated tumour to highly aggressive high grade tumour with potential for local and distant metastasis to lymphnodes, bones and lungs 2)Site: Often located on the face, scalp and extremities as an ulcerated reddish nodule. It can also involve the eyelid, finger and the perianal region.