RT Journal A1 Hood J, Wilson ER, Jr, Alexander C, Flint A, Ho K T1 LYmphomatoid granulomatosis manifested as a mass in the cerebellopontine angle JF Archives of Neurology JO Archives of Neurology YR 1982 FD May 1 VO 39 IS 5 SP 319 OP 320 DO 10.1001/archneur.1982.00510170061022 UL http://dx.doi.org/10.1001/archneur.1982.00510170061022 AB Lymphomatoid granulomatosis, first described by Liebow et al1 in 1972, is a rare clinical entity characterized by angiocentric, angiodestructive lymphoreticular proliferation and granulomatous reaction. It initially involves primarily the lung, and in a subsequent sarcomatous stage extrapulmonary tissues are involved. We have recently encountered a case of lymphomatoid granulomatosis with nodular pulmonary infiltrates and symptoms of a rapidly growing mass in the cerebellopontine angle. Central nervous system involvement is by no means uncommon, as it occurs in at least 20% of all patients with lymphomatoid granulomatosis.1-3 In patients with rapidly developing CNS symptoms associated with nodular lung lesions, lymphomatoid granulomatosis should be considered a strong candidate in the differential diagnosis.REPORT OF A CASEĀ  In a 54-year-old man, malaise, restlessness, intermittent fever, and a 15-kg weight loss occurred during the year before admission. Initially, he was treated for a bacterial pneumonia because of bilateral nodular infiltrates shown on