There is an unusual but apparently infrequent type of intrathoracic growth occurring in the apical region, yet found with sufficient frequency in my experience to warrant a collective report of the cases encountered. The neoplastic condition is unusual for the reason that it produces referred nerve phenomena in the upper extremity which may be very misleading to the clinician and roentgenologist in their search for the cause; and when to these manifestations are added certain cervical sympathetic phenomena, the symptomatology of spinal cord tumor is closely simulated, especially in the absence of any apparent extraspinal etiologic factor. I have been fortunate enough to learn the exact nature of these growths from careful pathologic studies in two cases, and in all four cases there has been a most satisfactory correlation of clinical and roentgenologic data.
In three of the four cases, an early diagnosis of the condition present was missed because
PANCOAST HK. IMPORTANCE OF CAREFUL ROENTGEN-RAY INVESTIGATIONS OF APICAL CHEST TUMORS. JAMA. 1924;83(18):1407–1411. doi:10.1001/jama.1924.02660180025007
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