size of a walnut, rather soft, though not fluctuating, and not discolored nor adherent.
The patient was a healthy boy, sixteen years of age, and the disease was of about a year's duration, though it had been stationary the last six months. Never tender until the last month, when the skin ulcerated, and a gush of blood followed.
After removal, the mass appeared light-colored, dryish, friable, and curiously granular ; particles rolling off be- neath the finger, and feeling calcareous. No calcareous mat- ter, however, was found microscopically, but partially de- veloped epithelial cells distributed uniformly throughout the mass. This last was perfectly homogeneous on section, though in certain directions it could be torn in non-con- centric laminae. There was no marked cyst about it, and the surrounding tissues were healthy. (Hospital, 138, 203.) 1869. Dr. U. J. Bigelow.
Encysted disease of bone. (No. 1483.)
Dentigerous cyst. (No. 2091.)
Horny growths, from cutis. (Page 397.)
2969. A fatty tumor, from the deltoid region. Weight, 5 Ibs.
12 oz., and deeply lobulated. The skin was thin over it; and the veins much dilated.
From a woman, about fifty-five years of age. Duration about fifteen years. 1847. Dr. S. D. Townsend.
The next four specimens were given, in 1847, by
Dr. J. C. Warren.
2970. A second specimen, about 4 in. in diameter, and with a
peduncle of about 1^ in. Skin at one part abraded or superficially ulcerated.
2971. A third; two-thirds as large as the head, and mostly
covered by integument. This last is destroyed at one part, and very definitely, to the extent of about an inch ; and a slough hangs off from within.
2972. A fourth ; of the size of two fists, with a portion of skin attached, and deeply lobulated.
2973. A fifth ; 2| in. in diameter, and not at all lobulated.
Form plano-convex.
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