|
This is a report of a rare case of congenital midline cervical cleftwith comments. Patient, a man of 25 years old, was born with a skindefect in the front of his neck, lying along the midline, 5 cm long and1 to 2 cm wide. At the upper end of the lesion there was a nipple-likestructure and at the lower end the orifice of a fistula. The covering ofthe cleft looked like mucous membrane, red and moist, and repeatedlycrusted. The lesion was excised completely and the wound was closedby Z-plasty. Microscopically,... This is a report of a rare case of congenital midline cervical cleftwith comments. Patient, a man of 25 years old, was born with a skindefect in the front of his neck, lying along the midline, 5 cm long and1 to 2 cm wide. At the upper end of the lesion there was a nipple-likestructure and at the lower end the orifice of a fistula. The covering ofthe cleft looked like mucous membrane, red and moist, and repeatedlycrusted. The lesion was excised completely and the wound was closedby Z-plasty. Microscopically, the skin of the cleft showed stratified squamousepithelium without skin appendages except in the area of the nipple-likestructure. The dermis in the cleft contained fibrovascular tissue. Thesubcutis of the middle part of the lesion and the fistular had mixed(serous and mucous) glands. Congenital midline cervical cleft, the authors speculate, is probablyresulted from transposition of the endodermic epithelium towards thebody surface when the branchial arches unite on the midline. 本文报告一颈正中裂典型病例,结合文献复习叙述了本病的临床和病理特点,并指出其发生与人胚鳃弓部腹侧中线区的内胚层上皮外移有关。 From May 1979 to Oct 1982, 48 infrahyoid myocutaneous flaps (IHMCF) were used for reconstruction after resection of lingual carcinoma in 44 cases, 4 for carcinoma of retromolar buccal mucosa, 3 each for carcinoma of floor of mouth and parotid gland and 1 each for osteosarcoma of mandible and soft tissue sarcoma of face. The operative technique was reported in 1980. Two flaps were used simultaneously in 4 cases of lingual carcinoma. When the width of flap was less than 4.5 cm, primary suture of the donor... From May 1979 to Oct 1982, 48 infrahyoid myocutaneous flaps (IHMCF) were used for reconstruction after resection of lingual carcinoma in 44 cases, 4 for carcinoma of retromolar buccal mucosa, 3 each for carcinoma of floor of mouth and parotid gland and 1 each for osteosarcoma of mandible and soft tissue sarcoma of face. The operative technique was reported in 1980. Two flaps were used simultaneously in 4 cases of lingual carcinoma. When the width of flap was less than 4.5 cm, primary suture of the donor wound could be accomplished. The cutaneous cervical nerve was severed to increase the mobility of the flap. If there was no contraindication, the external and internal jugular vein or part of it including the superior thyroid vein were preserved for better venous return of the flap. 本文报道用60个舌骨下肌群肌皮瓣,在原修复舌癌根治术后舌缺损获得成功的基础上,进一步改进修复方法,对44例(48个瓣)舌癌和12例其它头颈部恶性肿瘤根治术后缺损进行立即修复。术后肌皮瓣成活率为87%(52/60)。未发生口皮肤瘘。42例舌癌患者于术后1.5月内口进半流质。80%患者术后说话清楚可辨。文中对此肌皮瓣的优点和手术改进要点作了讨论。 Five specimens of calculi of the submandibular salivary glands were analysedby infrared spectrometry.Other three calculi in the central and peripheral portionwere identified by X-ray powder diffraction.Experimental results show that thecalculi are mixture of whitlockite〔Ca_3(PO_4)_2〕or brushite〔CaHPO_4·2H_2o〕and hydroxyapatite〔Ca_5(PO_4)_3(OH)〕,indicating that whitlockite or bru-shire be located in the central part of the calculi and hydroxyapatite in theperipheral part.Based on experimental data,the cause... Five specimens of calculi of the submandibular salivary glands were analysedby infrared spectrometry.Other three calculi in the central and peripheral portionwere identified by X-ray powder diffraction.Experimental results show that thecalculi are mixture of whitlockite〔Ca_3(PO_4)_2〕or brushite〔CaHPO_4·2H_2o〕and hydroxyapatite〔Ca_5(PO_4)_3(OH)〕,indicating that whitlockite or bru-shire be located in the central part of the calculi and hydroxyapatite in theperipheral part.Based on experimental data,the cause of formation of thecalculi is discussed. 本研究用红外吸收光谱法对5枚颌下腺导管结石进行了分析,并用X射线粉晶衍射对另外3枚结石中央和周边部进行了测定。实验结果表明结石为混合性结石,中央部为正磷酸钙〔Ca_3(PO_4)_2〕或透磷钙石〔CaHPO_4·2H_2O〕,周边部为羟磷灰石〔Ca_5(PO_4)_3(OH)〕。根据实验数据,对涎石成因进行了讨论。
|