title: Ultrastructural studies on pigmented macules of Peutz-Jeghers syndrome.
mesh_terms: D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008544:Melanocytes / Q000648:ultrastructure*; D008854:Microscopy, Electron; D010580:Peutz-Jeghers Syndrome / Q000473:pathology*; D012867:Skin / Q000648:ultrastructure*