UNASSIGNED: @entity28045 are uncommon @entity5 with a peripheral nerve sheath origin. This @entity5 usually involves dermis and is described as a small, solitary, slow growing and reddish to flesh-colored nodule or papule. @entity28045 preferentially affects the central aspect of the face, the arms or shoulders of @entity1 in the second and third decades of life. This is the first case report of @entity28045 involving the wrist developing from synovial tissue and with uncertain clinical behavior in an adult female. The @entity5 was completely excised under brachial plexus block. Histopathologically, the examination of the microscopic slides revealed the presence of a 20-mm diameter, well-circumscribed and multilobulated @entity5 composed of abundant myxoid stroma with cellular elements; with immunohistochemistry there was positivity to @entity2277 but S100-protein, epithelial membrane antigen, cytokeratin AE1-3, @entity3778 and @entity2280 were all negative. This pattern suggested a @entity5 form of @entity28045 , mixed subtype. The @entity1 had an atypical local recurrence and was re-operated after 3  months. After 12  months there was no evidence of clinical recurrences confirmed by magnetic resonance evaluation. Basically, our case report adds an important element in the correct clinical management of neurotecheomas: faced with a histological diagnosis with an unusual localization and mixed or hypercellular type, clinicians must consider the possibility of an early local recurrence, suggesting a close clinical and radiological follow-up.

An unusual case of XXXX of the arm in an adult.

@entity1 :: ('9606', 'Species') :: ['women', 'patient'] @entity28045 :: ('MESH:D018321', 'Disease') :: ['neurothekeoma', 'Neurothekeoma', 'Neurothekeomas'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'benign neoplasms', 'myxoid tumor'] @entity3778 :: ('4267', 'Gene') :: ['CD99'] @entity2277 :: ('7431', 'Gene') :: ['vimentin'] @entity2280 :: ('947', 'Gene') :: ['CD34']
@entity28045 :: (MESH:D018321,Disease) :: ['neurothekeoma']
