Galactocele: a rare cause of breast enlargement in an infant

Does Male Infantile Galactocele Always Necessitate Surgical Intervention?

Galactocele is cystic dilatation of the mammary gland, which contains milk. Galactocele is usually presented as a painless breast enlargement with a fluctuant, soft, mobile, and non-tender mass in the breast. It is a rare disorder in the male pediatric age group, with only 31 cases reported in the literature. In this article, we present another case of unilateral galactocele in a 14-month-old male infant. Ultrasound imaging confirmed a simple cystic hypoechoic mass in the right breast, and needle aspiration was performed before surgery as a diagnostic procedure (a 1-cc extract revealed a milky-colored fluid).

[A rare case of giant galactocele associated with prolactinoma]

Le galactocèle est une forme kystique rare, c'est une lésion bénigne du sein, apparaissant quand un canal mammaire est obstrué et très rempli de lait. On le rencontre généralement chez les femmes en post-partum, soit allaitant ou non. Il n'y a que quelques cas signalés qui ne sont pas liées à la lactation, comme on le voit chez les femmes ménopausées ou chez les hommes; tant plus, que la relation à la surproduction de prolactine, un facteur de croissance de l'épithélium mammaire n'est pas très bien défini à ce moment. Nous présentons un tel cas inhabituel d'une patiente âgée de 30 ans qui n'a pas d'antécédents d'accouchement ou l'avortement. Elle est suivie en endocrinologie pour micro adénome hypophysaire mise sous Cabergoline* qu'elle a arrêté d'elle-même pendant un an. Même compte tenu de la rareté de l'association, il est important de souligner le rôle hormonal dans l'évolution de l'anatomie du sein.

Galactocele in a Prepubertal Girl

BACKGROUND

Galactoceles have been previously described as an unusual cause of benign breast enlargement in male infants and children.

CASE

A 3-year-old prepubertal girl presented with a right-sided breast mass and was found to have a 4.4-cm hypoechoic cyst on ultrasound imaging with otherwise normal endocrine studies including prolactin levels. She underwent cyst aspiration which revealed milky fluid. Fat globules were identified with microscopic examination, confirming the diagnosis of a galactocele. Aspiration resolved the mass.

SUMMARY AND CONCLUSION

The etiology of galactoceles in nonlactating women is poorly understood. Traditionally, treatment of these benign cysts in male children has been surgical excision. In prepubertal girls, conservative management by surveillance or needle aspiration is warranted to prevent damage to developing breast tissue.

The galactocele of male infants: an intriguing entity. Study and reflection about a case, with review of the literature

In this report, the authors investigate and discuss a galactocele that developed in the breast of a 5-month-old male. Based on the histological and immunohistochemical findings, they suggest that the rare and intriguing process that is exclusively observed in males in the absence of any detectable hormonal stimulation at time of investigation could represent a developmental anomaly possibly promoted by an obstructive phenomenon involving a defect of hollowing of some primary epidermal buds, the precursors of the mammary ducts.

Galactocele: an unusual cause of breast enlargement in children

Galactoceles in children, either cystic or pseudotumors, are described in the literature as a rare cause of increasing breast size and can appear in males. We report a case of galactocele in a 15-month-old male, treated at our institution. The patient presented with a tumor in the right breast that had appeared 6 months earlier with no pain, signs of inflammation, or nipple secretion. Twelve cases found in the literature emphasize the importance of including galactocele in the differential diagnosis of benign breast masses in infancy.

Galactocele and prolactinoma--a pathogenic association?

A galactocele is a rare form of cystic, benign lesion of the breast, appearing when a mammary duct becomes obstructed and over filled with milk. It is usually found in postpartum women, either lactating or not. There are only a few cases reported that are not immediately linked to the lactation, as seen in postmenopausal women or in men. Furthermore, the relationship to overproduction of prolactine, a growth factor for the breast epithelium is not very well defined at this moment. We present such an unusual case of a 37-year-old female patient who has no history of birth or abortion. She was diagnosed with both microprolactinoma and galactocele whose dimensions seemed to be related to the evolution of the pituitary tumor and serum prolactine. Because no other etiology could be found in the young patient for the mammary galactocele, the prolactine excess is the most probable cause. Even considering the rarity of the association it is important to point the hormonal role in changing the anatomy of the breast.

Galactoceles mimicking suspicious solid masses on sonography

OBJECTIVE

The purpose of this study was to evaluate the sonographic appearance of a galactocele that can sonographically mimic a suspicious solid mass and to differentiate between a galactocele and a solid mass.

METHODS

From September 2002 to February 2004, 33 galactoceles classified as Breast Imaging Reporting and Data System category 4 were included. They were all confirmed by sonographically guided core biopsies. Their sonographic imaging and clinical findings were reviewed retrospectively.

RESULTS

The lesions had a round or irregular shape in 26 patients (78.8%), a noncircumscribed margin in 31 (93.9%), a nonparallel orientation in 22 (66%), and posterior shadowing in 13 (39.4%). Twenty-five nodules (75.8%) had internal hypoechogenicity or mixed echogenicity. Twenty-nine (87.9%) of 33 lesions showed a relatively sharp convex echogenic rim on the anterior or posterior wall.

CONCLUSIONS

Galactoceles have various sonographic findings, many of which are similar to those of suspicious solid breast masses. However, there is a tendency for a galactocele to appear as a small, round hypoechoic nodule with an indistinct or microlobulated margin and mild posterior shadowing. It is helpful to search for a partial anterior or posterior echogenic rim to identify a galactocele.