Colonic lesions are more common in patients of AIDS,manifested as chronic colitis and colon ulcers,occasionally tumors.
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Conclusions Extensive segmental resection of the trachea is the treatment of choice for primary malignancy and occasionally for benign tracheal tumors.
结论原发性恶性肿瘤和某些良性肿瘤需要大范围的气管节段切除。
Occasionally, these tumors may secrete catecholamines, testosterone, or vasoactive intestinal polypeptide.
偶尔，肿瘤可以分泌儿茶酚胺、睾酮、或血管活性肠肽。
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