Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病位十八个月大男，病灶位于左踝骨，见，手术前诊断也困难，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，脚部的附属骨之，出现于百分之七的正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男，病灶位于左踝骨，比较罕见，手术前诊断也比较困难，故加以分析讨。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

附三角骨位于距骨之后外侧节，是脚部的附属骨之一，出现于百分之七的正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男，病灶位于左骨，比较罕见，手术前诊断也比较困难，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，是脚部附属骨之一，出现于百分之七人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病是一位十八个月大男，病灶位于左踝骨，比较罕见，手断也比较困难，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，是脚部的附属骨之一，出现于百分之七的正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月男，病灶位于左踝骨，比较罕见，手术前诊断也比较困难，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，是附属骨之一，出现于百分之七正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男，病灶位于左踝骨，比较罕见，手术前诊断也比较困难，故加以论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，是脚部的附属骨之一，出现于百之七的正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男，病灶位于左踝骨，较罕见，手术前诊较困难，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，是脚部的附属骨之一，出现于百分之七的正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男，病灶位于左踝，比较罕见，手术前诊断也比较困难，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附位于距之后外侧节，是脚部的附属之一，出现于百分之七的正常人中。

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男，病灶位于左踝骨，比罕见，手术前诊断也比，故加以分析讨论。

The os trigonum is an accessory bone of the foot, locates at the posterolateral tubercle of the talus, and occures in about 7% of population.

摘要附三角骨位于距骨之后外侧节，是脚部的附属骨之一，出现于百分之七的正常人中。