Publications by authors named "Cesar Augusto Alvarenga"

Purpose: To explore the relationship between morphological characteristics and histologic localization of metastasis within sentinel lymph nodes (SLN) and axillary spread in women with breast cancer.

Methods: We selected 119 patients with positive SLN submitted to complete axillary lymph node dissection from July 2002 to March 2007. We retrieved the age of patients and the primary tumor size.

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Aims: CD44, CD24 and ALDH1 are the most consistently used biomarkers to identify and characterise the breast cancer stem cell (CSC) phenotype. However, most studies performed until now analysed samples of invasive ductal carcinomas of no special type (IDC-NST). Therefore, prevalence and clinical significance of these CSC markers in breast carcinomas of special histological types (SHT) is largely unknown.

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Histological special types (HST) account for about 25% of breast cancers, and correspond to at least 17 pathological entities. However, their molecular characteristics remain to be determined. The purpose of the present study is to apply the recently used immunohistochemical profiling of HST breast carcinomas (BC), as a surrogate for the molecular subtyping, what could be relevant for therapeutic purposes.

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Context: Extra-adrenal paragangliomas are rare tumors that have been reported in many locations, including the kidney, urethra, urinary bladder, prostate, spermatic cord, gallbladder, uterus and vagina.

Case Report: This report describes, for the first time to the best of our knowledge, a primary paraganglioma of the seminal vesicle occurring in a 61-year-old male. The patient presented persistent arterial hypertension and a previous diagnosis of chromophobe renal cell carcinoma.

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Carcinoma of the breast is very rare in childhood, accounting for less than 1% of all childhood malignancies and is especially rare in boys. Delay in diagnosis and treatment in children with breast cancer may occur because surgeons are very reluctant to perform biopsies on the developing breast, since these can cause future deformity. We report a case of male secretory breast carcinoma in a 13-year-old boy.

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