The pathology and surgical treatment of tumors . Fig. 303.—Osteoma of the left frontal sinus, anterior view (after Sutton). In all of them the tumors were removed with a fine saw, as they weretoo hard to chisel. The internal surface of the skull is occasionally the seat of anosteoma. The small conical exostoses which Virchow describes as occa-sionally growing from the upper surface of the basilar process into the. Fig. 304.—Osteoma of the left frontal sinus, seen from below (after Sutton). cranial cavity are of outgrowths of cartilage connected withthe basicranial synchondrosis,
The pathology and surgical treatment of tumors . Fig. 303.—Osteoma of the left frontal sinus, anterior view (after Sutton). In all of them the tumors were removed with a fine saw, as they weretoo hard to chisel. The internal surface of the skull is occasionally the seat of anosteoma. The small conical exostoses which Virchow describes as occa-sionally growing from the upper surface of the basilar process into the. Fig. 304.—Osteoma of the left frontal sinus, seen from below (after Sutton). cranial cavity are of outgrowths of cartilage connected withthe basicranial synchondrosis, and a thin layer of cartilage often remainson the surface of the tumor, Osteomata have been found upon theinner surface of nearly all the cranial bones, but more especially uponthe frontal. Endocranial osseous tumors, when they reach consider- OSTEOMA. 433 able size, disturb the function of the brain by causing irritation andpressure-atrophy, which are frequently manifested by well-defined focalsymptoms. Frontal Sinus.—Osteomata of the frontal sinus belong to thetuberous variety. Their origin from islands of persistent cartilage hasbeen described fully by J. Arnold. An interesting specimen represent-ing an osteoma in this locality (Figs. 303, 304) is preserved in themuseum of the Royal College of Surgeons, London. Many of thesetumors extend into the orbit, and others sometimes enter the cranialcavity
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectneoplas, bookyear1895
