title: Epithelial inclusion in axillary lymph node associated with a breast carcinoma: report of a case with a review of the literature.
abstract: Since epithelial inclusions in axillary lymph nodes are rare, some diagnostic problems concerning their nature have arisen. We report a case of a cystic squamous epithelial inclusion in an axillary lymph node of a patient affected by a high grade breast carcinoma with focal squamous differentiation. Although the lesion was histologically benign, the possibility that it represents a well-differentiated squamous metastasis cannot be completely ruled out. To our knowledge, this is the first case of an epithelial lymph node inclusion associated with a breast carcinoma showing morphological evidence of squamous differentiation. Here, we discuss the diagnostic problems and give a review of the literature.
authors.affiliation: Istituto di Anatomia ed Istologia Patologica, Università di Catania, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Fraggetta
authors.forename: E
authors.initials: E
authors.lastname: Vasquez
mesh_terms: D001365:Axilla; D001943:Breast Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D018270:Carcinoma, Ductal, Breast / Q000473:pathology* / Q000648:ultrastructure; D002467:Cell Nucleus / Q000473:pathology; D004847:Epithelial Cells / Q000473:pathology; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007150:Immunohistochemistry; D008198:Lymph Nodes / Q000473:pathology* / Q000648:ultrastructure; D008207:Lymphatic Metastasis / Q000473:pathology / Q000648:ultrastructure; D008875:Middle Aged