Plexiform pattern in cutaneous granular cell tumors.

ABSTRACT

Granular cell tumors, considered to be of peripheral nerve sheath origin, can involve various parts of the body with skin and tongue being the most common organs involved. In the skin, the granular cell tumors usually form an ill-defined mass of round to oval cells with abundant eosinophilic granular cytoplasm and central or eccentric bland nuclei. Here we present nine cases of granular cell tumors, which display features different from the classical cutaneous granular cell tumor and have features similar to the earlier described plexiform granular cell tumors. Plexiform pattern in granular cell tumors may be more common than is reported.