Introduction:

Adenoid cystic carcinoma is an uncommon and often aggressive malignant neoplasm that can arise in a variety of gland-bearing organs.

Objective:

To characterize the presentation of an uncommon aggressive malignancy, adenoid cystic carcinoma.

Clinical case:

56-year-old patient who presented to the on-call department with a lesion on the scalp corresponding to malignant cylindroma. She was subsequently studied and lesions were also found in the breast, colon and recurrence in the scalp, which resulted in adenoid cystic carcinoma.

Conclusions:

It is infrequent; making its diagnosis involves a high index of suspicion and its diagnosis is histopathological. Its prognosis depends on the primary location and it tends to be very aggressive when located outside the breast.

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