Lr. Donner et al., WELL-DIFFERENTIATED MALIGNANT CYLINDROMA WITH PARTIALLY PRESERVED HYALINE SHEATHS - A LOCALLY INVASIVE NEOPLASM, The American journal of dermatopathology, 17(2), 1995, pp. 169-173
Light microscopic and ultrastructural features of a well-differentiate
d malignant cylindroma are described. The tumor was locally invasive b
ut it neither recurred nor metastasized during the 3 years after surge
ry. This fact, together with the similar biologic behavior of two prev
iously described, well-differentiated malignant cylindromas, suggests
that these tumors possess either low or no metastatic potential.