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J. bras. patol. med. lab ; 45(6): 489-492, dez. 2009. ilus
Article in Portuguese | LILACS | ID: lil-552206

ABSTRACT

O presente relato descreve um caso de carcinoma mamário em paciente de 45 anos, com diferenciação coriocarcinomatosa, caracterizado por presença de células bizarras, anaplásicas, com áreas de necrose e células gigantes multinucleadas, com imunopositividade para a subunidade β da gonadotrofina coriônica humana (β-HCG) e cromogranina, medindo 5,7 cm no maior eixo, refratário ao tratamento neoadjuvante inicial. Realizada mastectomia, cujo diagnóstico após análises microscópica e imuno-histoquímica concluiu tratar-se de carcinoma com características coriocarcinomatosas. Tais lesões são raras, capazes de sintetizar substâncias hormonais não próprias ao tecido mamário, sendo o diagnóstico de grande importância para a abordagem terapêutica e prognóstica, pois constituem um grupo de lesões potencialmente agressivas.


This report describes the case of a 45 year-old patient with breast carcinoma characterized by choriocarcinomatous features, presence of bizarre anaplastic cells with areas of necrosis and multinucleated giant cells. The immuno-histochemical analysis showed positivity for chromogranin and β-HCG. The tumor size was 5.7 cm at the largest axis and it was refractory to initial neo-adjuvant treatment. Mastectomy was performed and after microscopic and immuno-histochemical examination it was diagnosed as carcinoma with choriocarcinomatous features. These lesions are rare and liable to synthesize hormonal substances not specific to breast tissue. Its diagnosis is highly significant to the therapeutic and prognostic approach insofar as these lesions are potentially aggressive.


Subject(s)
Humans , Female , Middle Aged , Choriocarcinoma/pathology , Breast Neoplasms/diagnosis , Breast Neoplasms/pathology
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