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myxoid neurothekeoma

Friday 5 April 2013

The myxoid subtype of neurothekeoma is characterized by a lobulated, nonencapsulated but well-circumscribed proliferation of spindled and epithelioid cells in varying proportions.

The cells are embedded within a myxoid stroma. Nests are separated by varying amounts of collagen.

Due to the large amount of myxoid stroma separating the cells, the tumor cells are said to display a random growth pattern.

The histologic features of myxoid neurothekeoma are distinguishing enough that its diagnosis is usually not problematic.

The myxoid neurothekeoma displays a lobulated, nonencapsulated but well-circumscribed proliferation of spindled and epithelioid cells embedded within a myxoid stroma.