Mucoepidermoid Carcinoma on the Scalp of a Child

Mucoepidermoid Carcinoma of the Eyelid: A Rare Presentation

“…MEC is also found in the lacrimal gland, with an incidence of approximately 1.5-4% [3,4]. It may rarely be reported in the esophagus, lung, bronchi, trachea, breast, thymus, thyroid, pancreas and female genital tract [3,[5][6][7]. Cutaneous involvement as a primary origin is extremely rare, with only 11 cases reported in the medical literature [4,5].…”

“…Histologically MEC can be divided into low-grade (well-differentiated) and high-grade (poorly differentiated) subtypes, although an intermediate grade has also been proposed. Also three groups have been described based on the proportion of mucin-secreting, squamous, intermediate and clear cells and the degree of maturation of these cells [3,7].…”

Primary Mucoepidermoid Carcinoma of the Skin Expressing p63

“…4 Primary cutaneous MECs are exceptionally rare with only 11 cases reported in the medical literature. [5][6][7][8][9][10][11][12][13][14][15] Much confusion exists about the terminology of this neoplasm because many reports have used indiscriminately the terms mucoepidermoid and adenosquamous to designate cutaneous neoplasms showing glandular and squamous differentiation. 7,16,17 Differential diagnosis is not only academic because they show very different biological behaviors: MEC is usually a low-grade neoplasm with limited metastatic potential, whereas adenosquamous carcinoma (ASC) is a high-grade neoplasm prone to local recurrence and metastatic dissemination.…”

Primary Cutaneous Mucoepidermoid Carcinoma

“…However, a case presenting in a child has been described. 9 Histologically, it has been classified into 2 or three groups depending on the proportion of squamous, mucinsecreting, intermediate, and clear cells, the degree of maduration of these cells, and the pattern of invasion.…”