Primary Subcutaneous Umbilical Endometriosis: Case Report and Review of the Literature

Table 2

---

Differential diagnosis of umbilical subcutaneous lesions

(i) Abnormal embryonic development

(ii) Desmoid tumors

(iii) Endosalpingiosis

(iv) Lipoma

(v) Primary umbilical endometriosis

(vi) Sister Mary Joseph’s nodule

(vii) Teratoma

(viii) Trichobezoar

(ix) Umbilical concretions

(x) Umbilical hernia

(xi) Urachal cysts and tumors

---