Figure 3. Microscopic presentation of colloidal iron-stained sections of a solitary cutaneous focal mucinosis on the right upper shoulder of a 37-year-old man.

(A) low and (B) higher magnification views of colloidal iron-stained sections of a solitary cutaneous focal mucinosis reveals positive deep blue staining that confirms that the composition of the nodular deposition that fills the upper dermis is mucin (Colloidal iron: (A): x10; (B): x20).