A 31-year-old female complained of upper abdominal and back pain. Laboratory tests showed elevated levels of aspartate aminotransferase, alanine aminotransferase and α-fetoprotein. Computed tomography revealed that t...A 31-year-old female complained of upper abdominal and back pain. Laboratory tests showed elevated levels of aspartate aminotransferase, alanine aminotransferase and α-fetoprotein. Computed tomography revealed that the tumor, measuring 14.5 cm × 10.4 cm, occupied the anterior and medial segments of the liver and consisted of multicystic and solid lesions. The preoperative diagnosis was a hepatic cystadenocarcinoma. The operation was performed urgently because of tumor rupture. Histo- pathologically, spindle and asteroid cells were found to have proliferated diffusely. There were no neoplastic epithelial tumor cells. Tumor cells had periodic acid- Schiff-positive hyalin globules. At the periphery, trapped normal bile duct cells were observed. The final diagnosis was embryonal sarcoma of the liver (ESL). Interestingly, irregular islands of chondrosarcoma-like lesions were found in the tumor and the tumor-associated vascular endothelium showed immunoreactivity for KIT. Two months after the operation, the tumor recurred. At 6 mo follow-up, the patient is alive with the disease and undergoing chemotherapy. This is the first report of ESL with chondroid differentiation.展开更多
BACKGROUND Chondroid syringoma(CS)is a rare tumor of the apocrine or eccrine glands.CS of the lower back is rare,and its clinical manifestations are similar to those of lipoma,which is a common misdiagnosis for this d...BACKGROUND Chondroid syringoma(CS)is a rare tumor of the apocrine or eccrine glands.CS of the lower back is rare,and its clinical manifestations are similar to those of lipoma,which is a common misdiagnosis for this disease.CASE SUMMARY A 39-year-old woman presented with a 2-year history of an asymptomatic subcutaneous mass on the lower back.The lesions increased progressively over time.The patient denied any history.Dermatological examination showed that there was a subcutaneous mass,ranging from 3-4 cm in diameter,with a clear boundary on the lower back.The surface of the skin was smooth without ulceration or scaling.Histopathologic examination was consistent with the diagnosis of CS.CONCLUSION CS is a rare tumor of the apocrine or eccrine glands.It usually presents as a wellcircumscribed and single subcutaneous masses.Histopathology showed the tumor was located in the dermis,with nests,sheets,and cords of basal-like cells,mucin deposition,and chondroid structures.We herein report a case of CS located in the lower back.CS of the lower back is rare,and its clinical manifestations are similar to those of lipoma,for which it is commonly misdiagnosed.展开更多
目的研究皮肤混合瘤(mixed tumor of the skin,MTS)的临床及组织病理特点。方法回顾性归纳分析本院1980-2007年26例MTS的临床病理资料。结果26例患者中23例为大汗腺性MTS,其中8例出现毛囊和/或皮脂腺分化,5例呈软骨样变,8例出现多少不...目的研究皮肤混合瘤(mixed tumor of the skin,MTS)的临床及组织病理特点。方法回顾性归纳分析本院1980-2007年26例MTS的临床病理资料。结果26例患者中23例为大汗腺性MTS,其中8例出现毛囊和/或皮脂腺分化,5例呈软骨样变,8例出现多少不等的脂肪组织,8例出现浆细胞样细胞,并有1例出现明显软骨及骨样化生;另外4例小汗腺性MTS出现透明细胞,26例MTS肿瘤间质成分均有不同程度的黏液样物质沉积。结论MTS可向毛囊和/或皮脂腺分化,间质表现多样化。展开更多
文摘A 31-year-old female complained of upper abdominal and back pain. Laboratory tests showed elevated levels of aspartate aminotransferase, alanine aminotransferase and α-fetoprotein. Computed tomography revealed that the tumor, measuring 14.5 cm × 10.4 cm, occupied the anterior and medial segments of the liver and consisted of multicystic and solid lesions. The preoperative diagnosis was a hepatic cystadenocarcinoma. The operation was performed urgently because of tumor rupture. Histo- pathologically, spindle and asteroid cells were found to have proliferated diffusely. There were no neoplastic epithelial tumor cells. Tumor cells had periodic acid- Schiff-positive hyalin globules. At the periphery, trapped normal bile duct cells were observed. The final diagnosis was embryonal sarcoma of the liver (ESL). Interestingly, irregular islands of chondrosarcoma-like lesions were found in the tumor and the tumor-associated vascular endothelium showed immunoreactivity for KIT. Two months after the operation, the tumor recurred. At 6 mo follow-up, the patient is alive with the disease and undergoing chemotherapy. This is the first report of ESL with chondroid differentiation.
基金Supported by Shenzhen Sanming Project,No.SZSM201812059Shenzhen Key Medical Discipline Construction Fund,No.SZXK040。
文摘BACKGROUND Chondroid syringoma(CS)is a rare tumor of the apocrine or eccrine glands.CS of the lower back is rare,and its clinical manifestations are similar to those of lipoma,which is a common misdiagnosis for this disease.CASE SUMMARY A 39-year-old woman presented with a 2-year history of an asymptomatic subcutaneous mass on the lower back.The lesions increased progressively over time.The patient denied any history.Dermatological examination showed that there was a subcutaneous mass,ranging from 3-4 cm in diameter,with a clear boundary on the lower back.The surface of the skin was smooth without ulceration or scaling.Histopathologic examination was consistent with the diagnosis of CS.CONCLUSION CS is a rare tumor of the apocrine or eccrine glands.It usually presents as a wellcircumscribed and single subcutaneous masses.Histopathology showed the tumor was located in the dermis,with nests,sheets,and cords of basal-like cells,mucin deposition,and chondroid structures.We herein report a case of CS located in the lower back.CS of the lower back is rare,and its clinical manifestations are similar to those of lipoma,for which it is commonly misdiagnosed.
文摘目的研究皮肤混合瘤(mixed tumor of the skin,MTS)的临床及组织病理特点。方法回顾性归纳分析本院1980-2007年26例MTS的临床病理资料。结果26例患者中23例为大汗腺性MTS,其中8例出现毛囊和/或皮脂腺分化,5例呈软骨样变,8例出现多少不等的脂肪组织,8例出现浆细胞样细胞,并有1例出现明显软骨及骨样化生;另外4例小汗腺性MTS出现透明细胞,26例MTS肿瘤间质成分均有不同程度的黏液样物质沉积。结论MTS可向毛囊和/或皮脂腺分化,间质表现多样化。
