Introduction
Microcystic adnexal carcinoma (MAC), firstly described by Goldstein in
1982 (1), is a rare kind of cutaneous neoplasm with a very aggressive
local infiltration that destructs the affected tissues (2). MAC recurs
frequently and the ratio of male and female patients affected by, is
almost equal. Head and neck are the most involved regions.
Its age range is 11 to 83 years (mostly appears in the 40 to 50) and is
described as a firm, colored lesion (papule, nodule, or plaque) which
grows slowly (2-6).
Pain, ignition, and decreased sensation or paresthesia (which is a sign
of perineural invasion) are considered as the most common symptoms of
MAC (2,7-10).
Although MAC is not a metastatic tumor (5); it infiltrates, shelvs, or
skates among the facial tissues (including muscle, perichondrium,
periosteum, and galea) and aggressively invades the affected region (8)
and spreads far beyond the visible margins (11).
According to its clinical and histological features, it can easily be
misdiagnosed or confused with other cutaneous neoplasms like basal cell
carcinoma, squamous cell carcinoma, desmoplastic trichoepithelioma,
syringoma, and trichoadenoma (12).
The correct diagnosis of MAC is very vital because of its aggressive
behaviour and high recurrence rate. Here in, we report a case of
recurrent MAC and discuss about possible treatments.