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女尸,约35岁.右手拇指畸形,远节呈双拇指状,均有指甲,粗细大致相等,近节正常.右拇指的指间关节较健侧膨大.解剖中发现,末节指骨从指骨颈处起分开,形成大致相等的两干.在畸形拇指的背侧,拇长伸肌健在近节指骨头处终于指背腱膜,再由后者分成两股分别终止于末节指骨.在腹侧,拇长屈肌腱亦在近节指骨头处分成两股附着于末节指骨底的掌面;末节指骨底两侧均有膨大骨突.正中神经分支沿拇指两侧上行至末节指端及其相对缘,并有指掌侧固有动脉分支伴行.在臂中部,发现正中神经除由臂丛内、外侧束的外侧头和内侧头组成外,尚有部分肌皮神经纤维穿喙肱肌后发支加入,至臂下部时,纤维就难以分开.剖开腹部,发现内脏亦有肠管的变异(图1).回肠分两管,一管进入盲肠,另一管进人乙状结肠,而盲肠亦分两管,一管进入升结肠,另一管进入乙状结肠,阑尾缺如,升结肠、横结肠、降结肠相对较小但盲肠却很大,有许多粪便.胆囊异常变
Female corpse, about 35. The right thumb deformity, distal double thumb thumbnail, both nails, roughly equal thickness, near normal section.External thumb finger interphalangeal joint dilated.Anatomical findings, the distal phalanx from the phalanx at the neck From the separation, the formation of roughly equal to the two dry in the back of the deformity thumb, thumb long extensor health in the proximal phalanx at the end of the final refers to the dorsal aponeurosis, and then divided into two shares by the latter were terminated in the distal phalanx.In the ventral, The thumb flexor tendon is also divided into two attached to the palmar of the distal phalanx at the proximal phalanx. The distal phalanx has expanded bullae on both sides. The median nerve branches extend along both sides of the thumb to the distal end and its opposite edge , And the palpable side of the branch of the inherent arteries in the middle of the arm and found that the median nerve in addition to the brachial plexus, the outer lateral and medial head of the lateral head of the composition, there are still some muscle fibers in the brachial muscle after beriberi hair branch Join, to the lower arm, the fiber is difficult to separate .Associate the abdomen and found that internal organs also have intestinal variation (Figure 1) .The ileum in two tubes, one tube into the cecum, the other into the sigmoid colon, while the cecum is also divided into two Tube, one into the ascending colon, the other into the sigmoid colon, appendectomy, ascending colon Transverse colon, descending colon cecum is relatively small but has been enormous, there are a lot of feces. Gallbladder abnormally