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Benign tumors of vascular origin occupy a lowly position of usually casual interest in the field of human neoplasms. Their marked predilection for cutaneous localization renders their diagnosis a matter of great simplicity in most instances. The occurrence of hidden angiomas in multiple parenchymatous organs and the deeper supporting tissues, however, offers a diagnostic challenge requiring consideration of all multiple system diseases. Such a problem, further obscured by a total lack of cutaneous manifestations, serves as the basis for this discussion. Isolated skeletal lesions are the rule (3, 15, 16), and diagnosis can often be established from roentgenograms alone. Hitzrot (6) published the first roentgenogram of a hemangioma of bone in 1917, and Bucy and Capp (3) outlined criteria for the roentgenologic diagnosis of hemangioma in the vertebræ and in the flat and cylindrical bones in 1930. Hemangiomas of bone may present very unusual appearances. Pierson, Farber, and Howard (9) in 1941 reported numerous diffuse, small, osteolytic lesions involving almost every bone of the body more proximal than the elbows and knees. Rahm (11) reported generalized involvement of the skeletal system, simulating von Recklinghausen's osteitis fibrosa generalisata. Involvement of the tibia, fibula, and tarsus of a single extremity was reported by Ackermann and Hart (1). Bezold's (2) patient had lesions in the pelvis, right acetabulum, and one clavicle. Diagnosis in all of these cases was established only after skeletal biopsy or autopsy. Though hemangiomas of the liver, kidney, spleen and brain have frequently been reported, often in association with cutaneous manifestations, widespread visceral and bone involvement particularly in the absence of skin lesions is rare. Pohle and Clark (10) reported a case of multiple cavernous hemangiomas of the skin, brain, and skeleton. Diagnosis was established by surgery. Parsons and Ebbs' (7) case of generalized angiomatosis of the spleen, liver, thymus, mediastinum, sternum, lungs, pleura, kidneys, and most of the bones of the body, until autopsy was diagnosed as Gaucher's disease. Shennan (12) previously had reported a case similar to theirs. Review of an abstract of Grabowski's (5) case suggests that this, too, represents an instance of systemic hemangiomatosis. Zdansky's (18) patient had involvement of the pelvis, vertebræ, left femur, left scapula, and spleen. Hemangiomatosis of the spleen, mesentery, liver, diaphragm, and sternum was reported from the Medical Hospital, Mexico, D. F. (4). The clinical diagnosis was abdominal tumor, most likely Wilms' tumor or neuroblastoma. In our case, multiple bone involvement associated with splenomegaly resulted in confusion and prevented definitive diagnosis until after surgery. Case Report A 27-year-old white soldier, in apparent good health, visited a dispensary because of “eye strain.”