ABSTRACT
Adenoid cystic carcinoma (AdCC) of the breast is an uncommon invasive lobular neoplasm whose morphology is similar to the homonymous tumor of salivary glands and with a peculiar behavior toward the "triple-negative" (TN) profile. Tumors belonging to this family do not immunohistochemically express three of the main prognostic biomarkers and tend to show a more aggressive behavior. However, this rare histological pattern of breast cancer is generally associated with good prognosis. In this study, the authors describe the case of a 49-year-old woman diagnosed with this rare malignant tumor and who underwent breast-conserving surgery. Recent studies have aimed to understand the genes, genetic alterations, and etiological aspects related to the still obscure etiopathogenesis of AdCC. Thus, morphological and molecular aspects relevant to AdCC and reported in the literature will be discussed.
ABSTRACT
Myeloid sarcomas are extramedullary solid tumors composed of immature granulocytic precursor cells. In association with acute myeloid leukemia and other myeloproliferative disorders, they may arise concurrently with compromised bone marrow related to acute myeloid leukemia, as a relapsed presentation, or occur as the first manifestation. The testicles are considered to be an uncommon site for myeloid sarcomas. No therapeutic strategy has been defined as best but may include chemotherapy, radiotherapy and/or hematopoietic stem cell transplantation. This study reports the evolution of a patient with testicular myeloid sarcoma as the first manifestation of acute myeloid leukemia. The patient initially refused medical treatment and died five months after the clinical condition started.