Breast Hamartoma Arising In Axillary Ectopic Breast Tissue

Abstract

benign breast lesions do not always undergo biopsy or surgery. The different forms of EHM are better appreciated in Giemsa-stained smears because of their metachromatic nature, which imparts bright magenta color.To conclude, hyaline material in the breast lesions is not a rare finding as it was considered earlier and can be seen in both benign and malignant lesions. It is often under-recognized by pathologists and may be mistaken for atypical or malignant breast lesions. EHM in cytological smears should be cautiously interpreted to avoid an erroneous diagnosis of malignancy.

Bilateral Gigantomastia, Multiple Synchronous Nodular Pseudoangiomatous Stromal Hyperplasia Involving Breast and Bilateral Axillary Accessory Breast Tissue, and Perianal Mammary-Type Hamartoma of Anogenital Mammary-Like Glands

“…1,2,9 Nonneoplastic disorders of the breast, including fibrocystic changes, mammary hamartoma, and PASH, are also reported in ectopic breast and AGMLG where they present as mass lesions. 11,12,35,[52][53][54][55][56] PASH was first described in the breast in 1986. 57 The detailed clinical presentation, morphology, immunophenotype, and behavior of PASH were described in several large studies.…”