Medullary carcinoma of the breast: mammographic and US appearance.

Abstract

Medullary carcinoma of the breast is an uncommon tumor, which may mimic a benign mass at both mammography and ultrasonography (US). A total of 24 medullary carcinomas visible at mammography appeared as round or oval, noncalcified masses with varying degrees of marginal lobulation. In six of the 24 patients, US demonstrated well-defined masses with an inhomogeneous, hypoechoic texture. There was no attenuation of sound, and all lesions showed enhanced through transmission.

Carcinoma medular da mama: correlação anátomo-radiológica

“…In the present study, high density was a preponderant finding similarly to the literature (35) . The BI-RADS IV was the most frequently observed category, in agreement with the worldwide literature, although category II has also been found in the present study (19,22,26,31) . At ultrasonography, the lesion is homogeneous and hypoechoic, or hypoechoic with intermediate heterogeneity, according to the present casuistic (26,27) (Figures 2 and 3).…”

“…Both cost and morbidity of interventions for diagnosis of these lesions are taken into consideration for confirming the utilization of mammography as screening for breast cancer (12,13,(15)(16)(17)(18)(19) . Medullary breast carcinoma, currently considered as basal carcinoma, corresponds to a subgroup of malignant tumors most frequently detected as an "interval cancer" in comparison with tumors diagnosed in the mammographic screening (20)(21)(22)(23)(24)(25)(26) . This tumor represents 2% to 7% of breast cancers and is most frequently found in young women (27)(28)(29)(30) .…”

Unusual malignant breast lesions: imaging-pathologic correlations

“…It occurs more frequently in women aged 35 years or younger (8,9). It is a rapidly growing tumor and manifests as a palpable mass.…”

“…On US, the tumor manifests as a homogeneous or inhomogeneous hypoechoic mass with a well-defined margin ( Fig. 4) (3,9). Histopathologic examination reveals a well-circumscribed carcinoma composed of poorly differentiated cells with scant stroma and prominent lymphoid infiltration (8).…”

Διερεύνηση Της Αξίας Της Μαγνητικής Μαστογραφίας Στη Μελέτη Των Εστιακών Αλλοιώσεων Του Μαστού Και Σύγκρισή Της Με Την Κλασσική Μαστογραφία Και Την Υπερηχοτομογραφία

“…Οι μυελοειδείς καρκίνοι είναι όγκοι συνήθως μεγάλου μεγέθους, που στη μαστογραφία απεικονίζονται με καλά περιγεγραμμένα όρια, στρογγυλού ή ωοειδούς σχήματος, ενώ στον US αναγνωρίζονται συμπαγείς, καλά περιγεγραμμένες μάζες με κυστικές περιοχές λόγω νέκρωσης και κυστικής εκφύλισης [138]. Στην MRI έχουν συνήθως ομαλά όρια και λοβωτό περίγραμμα, εμφανίζουν ομοιογενή ή ανομοιογενή εμπλουτισμό και καθυστερημένο περιφερικό εμπλουτισμού, ενώ στην καμπύλη συνήθως παρατηρείται πλατώ ή έκπλυση του σκιαγραφικού [285], ευρήματα συμβατά με αυτά της μελέτης μας.…”