Hamartoma of the Breast: Diagnostic Observation of 16 Cases

Abstract

Of 10,000 mammographies done over a 9-year period, 16 cases of hamartoma of the breast were diagnosed. The entity is a well delimited mass composed of dysplastic-appearing mammary tissue admixed to fat. It can be readily recognized and should not be confused with fibroadenoma or mammary dysplasia. The accuracy with which it can be diagnosed by mammography makes possible the avoidance of surgical excision in selected patients.

Giant fat containing breast masses: report of six cases

“…They have a capsule of compressed surrounding tissue. Mammographically, they may vary from very lucent lesions and be confused with a lipoma to a well circumscribed homogeneous mass and be mistaken for fibroadenoma (6).…”

Giant Mammary Hamartoma Diagnosed by Stereomicroscopic Analysis of the Mammary Glandular Tree in an Adolescent Girl: Report of a Case

“…The term "hamartoma" was first used by Arrigoni et al, 14 since when several clinicopathologic reports on mammary hamartoma have been documented. 12,[15][16][17] At present, a relationship with pregnancy or lactation is denied, and it is considered a benign tumor that has no neoplastic features and shows abnormal signs in the constituent ratio and buildup of mammary glandular components, although the individual components seem normal. 3,4 The age of the patient when this tumor develops ranges from 13 to 88 years, but most patients are middle-aged women aged over 35 years.…”

Breast Hamartoma: a Case Report

“…The degree of mammographic opacity is variable and depends upon the fat/oarenchyma ratio (5). The characteristic mammographic appearance of hamartoma has been described as "a piece of cut sausage" (8), which represents the mixture of fat and fibroglandular elements within the lesion.…”