| Generalized non-pruritic erythrematous papules and nodules with central umbilication were found over the face, body, and extremities. |
| The papules with umbilication could be due to hyperplasia of the mucous glands. |
| The individual had three papules with central umbilication over the neck and face. |
| The overlying mucosa can show umbilication at the site of the draining duct and yet remain normal. |
| The papules evolve over days into vesicles and then pustules, often developing central umbilication. |
| After resolution of the infection, a small umbilication in the skin remained. |
