Highlights ■ Colorectal carcinoma originates from within cancer stem cells of the large intestine. ■ Tissue levels of ALDH1-2 and LGR5 proteins were  associated with greater tumor aggressiveness. ■ Discovery of signaling pathways can improve cancer treatments that control cancer stem cells. ABSTRACT Objective: To investigate the association of CD44, CD133, ALDH1-2, and LGR5 expression with clinicopathological tumor variables. Methods: Twenty-eight adult patients with colorectal carcinoma who underwent curative surgery were included in the study. Paraffin-embedded samples were subjected to […]

ABSTRACT Laryngeal cartilage is an exceptionally rare site of metastasis, with fewer than 63 cases reported in the literature; prostate, kidney, breast, and lung cancers are the most common primary tumors. In addition to this extreme rarity, most published reports are limited to descriptions of the lesion and radiologic findings, without detailing management strategies or follow-up outcomes. The limited number of studies exploring surgical intervention have primarily described superficial resections or conventional laryngectomies. In this context, this case report describes […]

Highlights ■ Typical perifissural nodules remain radiologically stable with no metastatic potential. ■ Only two nodules progressed to metastasis (one atypical perifissural nodule and one non-perifissural nodule). ■ Atypical and non-perifissural nodules require closer follow-up. ■ Annual growth rate was a strong marker of malignancy. ABSTRACT Objective: To evaluate whether pulmonary nodules adjacent to fissures, particularly perifissural nodules detected on chest computed tomography in patients with hepatocellular carcinoma, can be reliably classified as benign based on their radiological characteristics. Methods: […]

ABSTRACT This report presents a case of a 59-year-old male diagnosed with metastatic esophagogastric junction adenocarcinoma, who presented with mild dysphagia and vertigo. Brain magnetic resonance imaging initially showed no abnormalities. Upper gastrointestinal endoscopy revealed a vegetative lesion in the distal esophagus, and concurrent colonoscopy identified a laterally-spreading tumor in the transverse colon. Immunohistochemistry confirmed a poorly differentiated adenocarcinoma, suggesting an upper gastrointestinal origin. Further investigation of the worsening neurological symptoms led to the identification of leptomeningeal carcinomatosis via cerebrospinal […]

Highlights ■ Men with metastatic prostate cancer in the public system have access to fewer treatment lines. ■ Survival in the public system was 3 years shorter than that in the private setting (78 versus 115 months). ABSTRACT Objective: To evaluate the impact of assistance from public and private health systems on the overall survival of patients with metastatic prostate cancer. Methods: A total of 213 patients with metastatic prostate cancer treated at the A.C. Camargo Cancer Center, either in […]

ABSTRACT Objective The optimal approach to the treatment of colorectal carcinoma and synchronous liver metastases remains controversial. The objective of this review was to analyze the outcomes of adopting the liver-first approach for the treatment of patients with colorectal cancer with synchronous hepatic metastases who initially underwent systemic chemotherapy and/or resection of the metastatic lesions and primary colorectal carcinoma. Methods This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The MEDLINE, EMBASE, […]

ABSTRACT In this article, we present a case of diffuse follicular variant papillary thyroid carcinoma with pituitary metastasis, which is a rare cause of pituitary metastasis. The follicular variant of papillary thyroid carcinoma is an uncommon variant of papillary carcinoma. A 74-year-old male was presented with weakness, fatigue, and a decreased appetite. The patient was diagnosed with secondary adrenal and thyroid insufficiencies. Imaging revealed a pituitary mass with suprasellar extension, right cavernous sinus invasion, and optic chiasm compression. Thyroid ultrasonography […]

ABSTRACT Percutaneous endoscopic gastrostomy is used to provide enteral nutritional support for patients with obstructive oropharyngeal or esophageal neoplasms. The placement of the catheter is considered safe, with few complications. Despite this, a specific complication that is considered rare, has been increasingly described in the literature, i.e., metastasis of head and neck cancer in the gastrostomy stoma. In this report, we described a case of metastasis of squamous cell carcinoma of the larynx in the gastrostomy site, and discussed the […]

ABSTRACT A 69-year-old male patient, smoker, was diagnosed with small cell lung cancer metastatic to lung, liver and central nervous system. He received chemotherapy with carboplatin AUC 5 on day 1 and etoposide 100mg/m2 on days 1, 2 and 3. During the first cycle, the patient presented with febrile neutropenia and abdominal distension. Chest, abdomen and pelvis computed tomography scan was performed and detected gas dissecting the wall of sigmoid colon extending to the mesosigmoid. Patient had no abdominal pain, […]

OBJECTIVE: The spine is the most common location for bone metastases. Since cure is not possible, local control and relief of symptoms is the basis for treatment, which is grounded on the use of conventional radiotherapy. Recently, spinal radiosurgery has been proposed for the local control of spinal metastases, whether as primary or salvage treatment. Consequently, we carried out a literature review in order to analyze the indications, efficacy, and safety of radiosurgery in the treatment of spinal metastases. METHODS: […]