The high incidence of fat necrosis mainly in reproductive age group could be secondary to leakage of milk in galactocele or lactating adenoma
Table 1: Frequency of FNA diagnosis of 1,000 breast lesions in various age groups Breast lesions Age (years) 16-20 21-30 31-40 Inflammatory Acute mastitis 3 26 8 diseases Chronic granulomatous 4 7 9 (n = 159) mastitis Tubercular mastitis 1 4 3 Benign Fibroadenoma 108 327 3 lesion Lactating adenoma
4 26 6 (n = 573) Fibrocystic change - 5 19 Fibroadenosis 12 17 1 Gynecomastia 5 6 Galactocele 1 2 3 Benign phyllodes 2 1 Organized hematoma 2 2 1 Malignant Duct carcinoma 7 lesion Mucinous carcinoma (n = 268) Papillary carcinoma Medullary carcinoma Lobular carcinoma Metastasis Total Breast lesions Age (years) Total ?
Lactating adenoma is one of the breast tumours associated with pregnancy.
Lactating adenoma is a rare breast tumor, most often associated with pregnancy.
Lactating adenoma is a rare tumor and there are differing views on its histogenesis.
7) The present case measured 16cms in diameter and qualifies for the second largest reported case of lactating adenoma.
Rapid increase in size in a lactating adenoma can be due to infarction.
In summary we report a case of a lactating adenoma presenting as a giant breast mass.
There were 36 fibroadenomas, 12 cysts, 7 abscesses, 1 lactating adenoma
, and 1 phylloides tumor.
One proved to be a lactating adenoma
and the rest were fibroadenomas.
In a study of 91 benign breast pathologies in pregnant women, 70% were inflammatory/infective and 30% were benign focal masses: fibroadenomas (40%), lactating adenomas (30%), galactoceles (17%) and papillomas (2%).
Lactating adenomas are relatively uncommon breast tumours developing from the innermost layer of alveoli which is comprised of lactocytes.