Transbronchial lung biopsy in the diagnosis of lymphangitic carcinomatosis

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Abstract
The clinical diagnosis of lymphangitic carcinomatosis of the lung has generally been confirmed by open lung or transthoracic needle biopsy, precedures with significant morbidity and mortality, particularly in patients with respiratory insufficiency. We present six cases of lymphangitic carcinomatosis diagnosed by transbronchial biopsy. Autopsy confirmation was obtained in 4 patients and ultrastructural confirmation of intralymphatic location of tumor in one. The diffuse bronchial and peribronchial lymphatic involvement demonstrated here suggests that this relatively noninvasive technique should be the procedure of choice in the diagnosis of lymphangitic carcinomatosis of the lung. Cancer 42:1995-1998, 1978.