The Experts below are selected from a list of 2649 Experts worldwide ranked by ideXlab platform
Horst Kierdorf - One of the best experts on this subject based on the ideXlab platform.
-
multiple osteochondromas of the antlers and cranium in a free ranging white tailed deer odocoileus virginianus
PLOS ONE, 2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:This paper reports a case of multiple osteochondromas affecting the antlers and the left Zygomatic Bone of a free-ranging adult white-tailed buck (Odocoileus virginianus) from Georgia, USA. Along with a few postcranial Bones, the antlered cranium of the individual was found in a severely weathered condition and devoid of any soft tissue. The antlers exhibited five pedunculated exostoses that were composed of cancellous Bone and, in their peripheral portions, also mineralized cartilage. The largest of the exostoses, located on the right antler, had a maximum circumference of 55 cm. The exostosis arising from the Zygomatic Bone was broad-based and much smaller than the exophytic outgrowths on the antlers. Diagnosis of the exostoses as osteochondromas was based on their overall morphology, the normal Bone structure in their stalk regions, and the continuity of their spongiosa and cortex with the respective components of the parent Bones. Antleromas, i.e., pathological outgrowths developing on antlers as a result of insufficient androgen production, were excluded in the differential diagnosis, based on (1) the apparent maturity and, except for the tumors, normal shape of the antlers and (2) the fact that exostosis formation had also affected the Zygomatic Bone. Previously only a single case of solitary osteochondroma of an antler has been described in the scientific literature. The case presented here is the first report of multiple osteochondromas in a deer. As antlers are regularly collected as trophies, and huge numbers of them are critically inspected each year, the fact that thus far only two cases of antler osteochondromas have been reported suggests that these tumors are very rare.
-
Multiple osteochondromas of the antlers and cranium in a free-ranging white-tailed deer (Odocoileus virginianus) - Fig 2
2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:Close-up views of exostoses arising from the right antler (a) and the left Zygomatic Bone (b) of the white-tailed buck (Odocoileus virginianus). (a) Rostral view of the right antler showing the smaller bilobular exostosis and portions of the more distally located larger one. Note the smooth surface of the stalk (asterisk) and the rugose/nodular surface of the peripheral portion of the mass. B: burr at antler base; P: small protuberances (‘pearls’) of the antler surface. (b) Lateral view of the left Zygomatic Bone with broad-based exostosis. The insert shows a CT image demonstrating continuity of spongiosa and cortex of the exostosis with those of the parent Bone.
Uwe Kierdorf - One of the best experts on this subject based on the ideXlab platform.
-
multiple osteochondromas of the antlers and cranium in a free ranging white tailed deer odocoileus virginianus
PLOS ONE, 2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:This paper reports a case of multiple osteochondromas affecting the antlers and the left Zygomatic Bone of a free-ranging adult white-tailed buck (Odocoileus virginianus) from Georgia, USA. Along with a few postcranial Bones, the antlered cranium of the individual was found in a severely weathered condition and devoid of any soft tissue. The antlers exhibited five pedunculated exostoses that were composed of cancellous Bone and, in their peripheral portions, also mineralized cartilage. The largest of the exostoses, located on the right antler, had a maximum circumference of 55 cm. The exostosis arising from the Zygomatic Bone was broad-based and much smaller than the exophytic outgrowths on the antlers. Diagnosis of the exostoses as osteochondromas was based on their overall morphology, the normal Bone structure in their stalk regions, and the continuity of their spongiosa and cortex with the respective components of the parent Bones. Antleromas, i.e., pathological outgrowths developing on antlers as a result of insufficient androgen production, were excluded in the differential diagnosis, based on (1) the apparent maturity and, except for the tumors, normal shape of the antlers and (2) the fact that exostosis formation had also affected the Zygomatic Bone. Previously only a single case of solitary osteochondroma of an antler has been described in the scientific literature. The case presented here is the first report of multiple osteochondromas in a deer. As antlers are regularly collected as trophies, and huge numbers of them are critically inspected each year, the fact that thus far only two cases of antler osteochondromas have been reported suggests that these tumors are very rare.
-
Multiple osteochondromas of the antlers and cranium in a free-ranging white-tailed deer (Odocoileus virginianus) - Fig 2
2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:Close-up views of exostoses arising from the right antler (a) and the left Zygomatic Bone (b) of the white-tailed buck (Odocoileus virginianus). (a) Rostral view of the right antler showing the smaller bilobular exostosis and portions of the more distally located larger one. Note the smooth surface of the stalk (asterisk) and the rugose/nodular surface of the peripheral portion of the mass. B: burr at antler base; P: small protuberances (‘pearls’) of the antler surface. (b) Lateral view of the left Zygomatic Bone with broad-based exostosis. The insert shows a CT image demonstrating continuity of spongiosa and cortex of the exostosis with those of the parent Bone.
Santiago Gomez - One of the best experts on this subject based on the ideXlab platform.
-
multiple osteochondromas of the antlers and cranium in a free ranging white tailed deer odocoileus virginianus
PLOS ONE, 2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:This paper reports a case of multiple osteochondromas affecting the antlers and the left Zygomatic Bone of a free-ranging adult white-tailed buck (Odocoileus virginianus) from Georgia, USA. Along with a few postcranial Bones, the antlered cranium of the individual was found in a severely weathered condition and devoid of any soft tissue. The antlers exhibited five pedunculated exostoses that were composed of cancellous Bone and, in their peripheral portions, also mineralized cartilage. The largest of the exostoses, located on the right antler, had a maximum circumference of 55 cm. The exostosis arising from the Zygomatic Bone was broad-based and much smaller than the exophytic outgrowths on the antlers. Diagnosis of the exostoses as osteochondromas was based on their overall morphology, the normal Bone structure in their stalk regions, and the continuity of their spongiosa and cortex with the respective components of the parent Bones. Antleromas, i.e., pathological outgrowths developing on antlers as a result of insufficient androgen production, were excluded in the differential diagnosis, based on (1) the apparent maturity and, except for the tumors, normal shape of the antlers and (2) the fact that exostosis formation had also affected the Zygomatic Bone. Previously only a single case of solitary osteochondroma of an antler has been described in the scientific literature. The case presented here is the first report of multiple osteochondromas in a deer. As antlers are regularly collected as trophies, and huge numbers of them are critically inspected each year, the fact that thus far only two cases of antler osteochondromas have been reported suggests that these tumors are very rare.
-
Multiple osteochondromas of the antlers and cranium in a free-ranging white-tailed deer (Odocoileus virginianus) - Fig 2
2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:Close-up views of exostoses arising from the right antler (a) and the left Zygomatic Bone (b) of the white-tailed buck (Odocoileus virginianus). (a) Rostral view of the right antler showing the smaller bilobular exostosis and portions of the more distally located larger one. Note the smooth surface of the stalk (asterisk) and the rugose/nodular surface of the peripheral portion of the mass. B: burr at antler base; P: small protuberances (‘pearls’) of the antler surface. (b) Lateral view of the left Zygomatic Bone with broad-based exostosis. The insert shows a CT image demonstrating continuity of spongiosa and cortex of the exostosis with those of the parent Bone.
Karl V Miller - One of the best experts on this subject based on the ideXlab platform.
-
multiple osteochondromas of the antlers and cranium in a free ranging white tailed deer odocoileus virginianus
PLOS ONE, 2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:This paper reports a case of multiple osteochondromas affecting the antlers and the left Zygomatic Bone of a free-ranging adult white-tailed buck (Odocoileus virginianus) from Georgia, USA. Along with a few postcranial Bones, the antlered cranium of the individual was found in a severely weathered condition and devoid of any soft tissue. The antlers exhibited five pedunculated exostoses that were composed of cancellous Bone and, in their peripheral portions, also mineralized cartilage. The largest of the exostoses, located on the right antler, had a maximum circumference of 55 cm. The exostosis arising from the Zygomatic Bone was broad-based and much smaller than the exophytic outgrowths on the antlers. Diagnosis of the exostoses as osteochondromas was based on their overall morphology, the normal Bone structure in their stalk regions, and the continuity of their spongiosa and cortex with the respective components of the parent Bones. Antleromas, i.e., pathological outgrowths developing on antlers as a result of insufficient androgen production, were excluded in the differential diagnosis, based on (1) the apparent maturity and, except for the tumors, normal shape of the antlers and (2) the fact that exostosis formation had also affected the Zygomatic Bone. Previously only a single case of solitary osteochondroma of an antler has been described in the scientific literature. The case presented here is the first report of multiple osteochondromas in a deer. As antlers are regularly collected as trophies, and huge numbers of them are critically inspected each year, the fact that thus far only two cases of antler osteochondromas have been reported suggests that these tumors are very rare.
-
Multiple osteochondromas of the antlers and cranium in a free-ranging white-tailed deer (Odocoileus virginianus) - Fig 2
2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:Close-up views of exostoses arising from the right antler (a) and the left Zygomatic Bone (b) of the white-tailed buck (Odocoileus virginianus). (a) Rostral view of the right antler showing the smaller bilobular exostosis and portions of the more distally located larger one. Note the smooth surface of the stalk (asterisk) and the rugose/nodular surface of the peripheral portion of the mass. B: burr at antler base; P: small protuberances (‘pearls’) of the antler surface. (b) Lateral view of the left Zygomatic Bone with broad-based exostosis. The insert shows a CT image demonstrating continuity of spongiosa and cortex of the exostosis with those of the parent Bone.
Stefan Flohr - One of the best experts on this subject based on the ideXlab platform.
-
multiple osteochondromas of the antlers and cranium in a free ranging white tailed deer odocoileus virginianus
PLOS ONE, 2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:This paper reports a case of multiple osteochondromas affecting the antlers and the left Zygomatic Bone of a free-ranging adult white-tailed buck (Odocoileus virginianus) from Georgia, USA. Along with a few postcranial Bones, the antlered cranium of the individual was found in a severely weathered condition and devoid of any soft tissue. The antlers exhibited five pedunculated exostoses that were composed of cancellous Bone and, in their peripheral portions, also mineralized cartilage. The largest of the exostoses, located on the right antler, had a maximum circumference of 55 cm. The exostosis arising from the Zygomatic Bone was broad-based and much smaller than the exophytic outgrowths on the antlers. Diagnosis of the exostoses as osteochondromas was based on their overall morphology, the normal Bone structure in their stalk regions, and the continuity of their spongiosa and cortex with the respective components of the parent Bones. Antleromas, i.e., pathological outgrowths developing on antlers as a result of insufficient androgen production, were excluded in the differential diagnosis, based on (1) the apparent maturity and, except for the tumors, normal shape of the antlers and (2) the fact that exostosis formation had also affected the Zygomatic Bone. Previously only a single case of solitary osteochondroma of an antler has been described in the scientific literature. The case presented here is the first report of multiple osteochondromas in a deer. As antlers are regularly collected as trophies, and huge numbers of them are critically inspected each year, the fact that thus far only two cases of antler osteochondromas have been reported suggests that these tumors are very rare.
-
Multiple osteochondromas of the antlers and cranium in a free-ranging white-tailed deer (Odocoileus virginianus) - Fig 2
2017Co-Authors: Uwe Kierdorf, Santiago Gomez, Karl V Miller, Stefan Flohr, Horst KierdorfAbstract:Close-up views of exostoses arising from the right antler (a) and the left Zygomatic Bone (b) of the white-tailed buck (Odocoileus virginianus). (a) Rostral view of the right antler showing the smaller bilobular exostosis and portions of the more distally located larger one. Note the smooth surface of the stalk (asterisk) and the rugose/nodular surface of the peripheral portion of the mass. B: burr at antler base; P: small protuberances (‘pearls’) of the antler surface. (b) Lateral view of the left Zygomatic Bone with broad-based exostosis. The insert shows a CT image demonstrating continuity of spongiosa and cortex of the exostosis with those of the parent Bone.
