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

本病例是位十八个月大男，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.

摘要附三角位于距后外侧节，是脚部的附属，出现于百分七的正常人中。

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

本一位十八个月大男，灶位于左踝骨，比，手术前诊断也比困难，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，比较罕见，手术前诊断也比较困难，故加以析讨论。

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后外侧节，是脚部的附属骨一，出现于百的正常人中。

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

本病例是一位月大男，病灶位骨，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.

摘要附三角骨位距骨之后外侧节，是脚部的附属骨之一，出现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.

病例是一位十八个月大男，病灶位于左踝骨，比较罕见，手诊断也比较困难，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.

摘要附三角位于距外侧节，是脚部的附属一，出现于百分七的正常人中。

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

本病例是八个月大男，病灶于左，较罕见，手术前诊断也较困难，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.

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