Breast lesions beyond duct-lobular unit. A radio-pathological pictorial review.

Congress:

ECR 2018

Poster Number:

C-1640

Type:

Educational Exhibit

Keywords:

Pathology, Diagnostic procedure, Ultrasound, MR, Mammography, Breast

Authors:

R. M. Lorente Ramos, F. J. Azpeitia Armán, J. M. García Gómez, S. alonso garcia; Madrid/ES

DOI:

10.1594/ecr2018/C-1640

DOI-Link:

https://dx.doi.org/10.1594/ecr2018/C-1640

Fig. 22: Metastatic melanoma.- Mammogram. Dense mass with lobulated...

Fig. 1: Skin lesions

Fig. 2: Skin Imaging: Tips for US in lesion location.

Fig. 3: Breast-specific stroma. Pseudoangiomatous stromal hyperplasia (PASH).

Learning objectives

To review breast lesions not arising in duct-lobular system. To analyze imaging features (mammogram, US, MR) and pathologic findings. To review pitfalls, diagnostic difficulties and differential diagnosis.

Background

The normal glandular tissue is made up of ducts, terminal ducts, and acini and is supported by fibrous tissue. Most breast lesions arise from the duct-lobular system, involving the epithelium, and so breast cancer is the most common malignancy. But many other entities, either benign, or malignant may appear within the breast. Nonepithelial lesions are rare, and may be found arising in structures other than duct-lobular system or by infiltration of the breast by different cells or substances or nearby structures. Imaging findings pose a...

Findings and procedure details

We present: A. Breast lesions arising in different breast gland components: 1.Skin. -Sebaceous cysts. Epidermal inclusion cysts They are the most frequent skin lesions, caused by a proliferation of squamous epithelium within the dermis or epidermis. Imaging findings ( Fig. 1 ). • Mammograms. Usually circumscribed nodules . • US. Circumscribed hypoechoic or heterogeneous lesions with through transmission included in the dermal plane. Inflammatory or ruptured lesions may present with ill-defined margins . • MR. Usually not studied with MR may appear as incidental findings....

Conclusion

The radiologist should be familiar with diagnostic images in different entities arising within the breast in structures other than the duct-lobular system in order to be able to recognize them.

Personal information

R. M. Lorente Ramos1 ([email protected]) J. Azpeitia Arman1 J. M. García Gómez1 S. Alonso García2 Unidad Central de Radiodiagnóstico de la CAM: Hospital Infanta Leonor1 Pathology Department. Hospital Infanta Leonor2 Madrid SPAIN

References

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