RT Journal
A1 HARE CC, SCHWARZ GA
T1 INtracerebral carcinomatous metastases
JF Archives of Internal Medicine
JO Archives of Internal Medicine
YR 1939
FD September 1
VO 64
IS 3
SP 542
OP 565
DO 10.1001/archinte.1939.00190030135010
UL http://dx.doi.org/10.1001/archinte.1939.00190030135010
AB There are apparently several ways by which carcinoma may metastasize to the central nervous system. Briefly, these are: (1) by direct extension (along nerve sheaths, by bony invasion or from the meninges); (2) through the lymphatic vessels, usually in retrograde growth, and (3) via the blood stream, as carcinomatous emboli. The different routes of invasion result in different pathologic1 and clinical pictures. Direct extension may be from a nearby primary focus, as in the case of carcinoma of the nasopharynx, or from a distant focus preceded by metastasis to a nearby structure, as in the case of carcinoma metastatic to the skull from the thyroid or the prostate. The resultant clinical picture is a combination of the symptoms produced by the structures primarily involved and those produced by the later growth into the central nervous system. Metastasis by the lymphatic route results usually in so-called meningitis carcinomatosa, with the