[Ultrastructural changes in the skin of patients with Fabry's angiokeratoma]

The skin of a patient with Fabry's diffuse angiokeratoma accompanied by a severe decrease of leucocyte alpha-galactosidase (0,7-1,2 nmol/mg protein/h) was studied by a method of semithin and ultrathin sections. Cytoplasmic inclusions having lamellar structure in the form of alternating electron-dense and light strips with a period about 6 nm were found in the endotheliocytes of dilated vessels, lymphoid cells, neutrophil leucocytes, axons and leucocytes of nerve trunks. The presence of these specific inclusions together with the decrease of leucocytic alpha-galactosidase allows the differential diagnosis with other types of angiokeratomas and some skin angiomas.