RESUMO
Soft-tissue sarcomas are uncommon and heterogeneous tumors of mesenchymal origin. A soft-tissue mass that is increasing in size, greater than 5 cm, or located under deep fascia are criteria for suspicion of sarcoma. Diagnosis, treatment, and management should preferably be performed by a multidisciplinary team in reference centers. MRI and lung CT scan are mandatory for local and distant assessment. A biopsy indicating histological type and grade is needed previous to the treatment. Wide surgical resection with tumor-free tissue margin is the primary treatment for localized disease. Radiotherapy is indicated in large, deep, high-grade tumors, or after marginal resection not likely of being improved with reexcision. Neoadjuvant and adjuvant chemotherapy improve survival in selected cases, usually in high-grade sarcomas of the extremities. In the case of metastatic disease, patients with exclusive lung metastasis could be considered for surgery. First-line treatment with anthracyclines (or in combination with ifosfamide) is the treatment of choice. New drugs have shown activity in second-line therapy and in specific histological subtypes (AU)
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Assuntos
Humanos , Masculino , Feminino , Sarcoma/diagnóstico , Sarcoma/terapia , Tomada de Decisões/fisiologia , Biópsia Guiada por Imagem/instrumentação , Biópsia Guiada por Imagem/métodos , Cisto Dermoide/complicações , Cisto Dermoide/terapia , Sociedades Médicas/normas , Biologia Molecular/métodos , Estadiamento de Neoplasias/classificação , Estadiamento de Neoplasias , Terapia Neoadjuvante/métodos , Radioterapia Adjuvante , Neoplasias Retroperitoneais/classificação , Neoplasias Retroperitoneais/complicações , Neoplasias Retroperitoneais/terapiaRESUMO
Megestrol acetate is a synthetic progestin that has been used since the 1970s for the treatment of advanced cancer and subsequently to treat anorexia, cachexia and weight loss in AIDS patients. It has been shown that high doses or prolonged treatment with this drug may cause Cushing's syndrome, new-onset diabetes and suppression of plasma ACTH and cortisol levels. Megestrol acetate may cause suppression of the pituitary-adrenal axis due to the affinity of this compound for the glucocorticoid receptor. Recognising the glucocorticoid-like activity of megestrol and its effects at the axis level is important for the diagnosis of sub-clinical adrenal insufficiency. We present the case of a 74-year-old woman with infiltrating ductal breast carcinoma refractory to prolonged hormonal treatment with megestrol acetate, presenting with adrenal insufficiency (AU)
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