Management of hidradenitis suppurativa with biological therapy: report of four cases and review of the literature.

Several studies report the usefulness of different biological therapies in the management of a difficult-to-treat pathology such as hidradenitis suppurativa (HS). However, there are little data on this, which shows the great difficulty in the management of this disease. We will report herein our experience of the treatment of four complex cases of HS.

Primary cutaneous adenoid cystic carcinoma: an unusual case.

Primary cutaneous adenoid cystic carcinoma (PCACC) is an uncommon adnexal skin tumor. It is usually located on the head or neck of people over 50 years of age, affecting men and women equally. The etiology is unclear; the source used to be considered the eccrine glands, but more recent hypotheses defend this carcinoma as originating in the apocrine glands or modified apocrine glands.