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  • Title: Small cell lung cancer presenting as ectopic ACTH syndrome with hypothyroidism and hypogonadism.
    Author: Lin CJ, Perng WC, Chen CW, Lin CK, Su WL, Chian CF.
    Journal: Onkologie; 2009 Jul; 32(7):427-30. PubMed ID: 19556823.
    Abstract:
    BACKGROUND: Small-cell lung cancer accounts for 15-20% of all lung cancers, and it is the cell type most commonly associated with paraneoplastic syndrome. Small-cell lung cancer presenting as ectopic adrenocorticotropic hormone (ACTH) syndrome associated with hypothyroidism and hypogonadotropic hypogonadism is clinically very rare. CASE REPORT: A 43-year-old man who presented with bilateral lower-extremity edema and hypokalemia had a mass lesion in his left hilum base visible on chest radiograph. Biopsy identified the mass as small-cell lung cancer with focal ACTH staining. The endocrine tests disclosed hypercortisolism, hypogonadism and hypothyroidism. RESULTS: Partial remission as evidenced by regression of the tumor mass and return to normal serum cortisol and ACTH levels occurred after the first course of combination chemotherapy using cisplatin and etoposide. An unexpected left-sided spontaneous pneumothorax developed after the first course of chemotherapy and was treated with thoracostomy and a chest tube. The patient developed persistent air leakage and chronic empyema. The patient received surgery of the Eloesser flap and reconstruction with the latissimus dorsalis flap. The treatment of the complicated problems was successful. CONCLUSION: Combination chemotherapy may prove effective in the treatment of small-cell lung cancer with ectopic ACTH syndrome, hypothyroidism and hypogonadism.
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