An unusual human papillomavirus type 82 detection in laryngeal squamous cell carcinoma: case report and review of literature

Squamous cell carcinoma (SCC) of the larynx is extremely rare in adolescent or younger adult and typically has an aggressive nature. The mechanism of laryngeal oncogenesis is complex and little is known about the role of human papillomaviruses (HPVs) in SCC in young age. HPV infection may occur during birth or latter by oro-genital contact. Most HPV genotypes detected were HPV 6, 11, 16, 18, 33 and 51. Herein, we report a case of invasive laryngeal SCC expressing an HPV 82 in an 18 year-old man with a history of unexplored severe acute dysphonia that started in early childhood.     

原发性乳腺鳞状细胞癌二例

例1女,50岁.发现左侧乳腺肿块5 d于2008年9月15日入院.体检:左乳外上象限可触及-2.0 cm × 1.5 cm肿块,质硬,无压痛,边界不清,活动尚可,乳头无溢液、无内陷,皮肤无橘皮样改变.术中冷冻切片诊断为浸润性乳腺癌,倾向于鳞状细胞癌.行左侧乳腺癌改良根治术及左腋窝淋巴结清扫.     

Primary squamous cell carcinoma of the endometrium: a case report

Squamous cell carcinoma of the endometrium is extremely rare female genital malignancy. Only 64 cases have been reported in the literature. A case of primary squamous cell carcinoma of endometrium in a 55-year old-woman is reported. Examination revealed pyometra and cervical stenosis. A total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed. Histopathology confirmed the diagnosis.     

Primary squamous cell carcinoma of the breast: a case report

INTRODUCTION: Primary squamous cell carcinoma (SCC) of the breast is an extremely rare entity and it has a low incidence in comparison with all other mammary cancers. MATERIAL AND METHODS: We describe a case of SCC of the breast in a 55 year old woman who presented with a painless mass located in the external quadrant of the left breast. The neoformation, once removed, was tamponate formalin fixed and routinely processed for inclusion in paraffin. Sections were stained with haematoxilin-eosin and immunohistochemical and electron microscopy investigations were performed. RESULTS: Histologically, the neoplasia was characterized by cystic cavities covered by nests and sheaths of poorly differentiated squamous cells with keratinized areas. Mitotic activity was high, as well as cellular proliferative index, evaluated by Mib-1 (ki 67) antibody. At immunohistochemistry, the tumor cells were diffusely positive for high molecular weight cytokeratins and c-erbB-2, negative for vimentin, estrogen and progesterone. CD68 and LCA were positive only in the inflammatory cells. Electron microscopy confirmed the epithelial nature of the neoplastic cells. A diagnosis of SCC of the breast was made, and a radical mastectomy was performed. CONCLUSIONS: We make a brief review of the literature and discuss the main histologic criteria for the differential diagnosis with adenocarcinoma of the breast with squamous metaplasia.     

Primary squamous cell carcinoma of the liver: a case report

Primary squamous cell carcinoma (SCC) of the liver is very rare, and few cases have been reported in Korea. Primary SCC of the liver is known to be associated with hepatic cysts and intrahepatic stones. A 71-year-old male was admitted to our hospital, and a abdominal computed tomography scan revealed a 10 × 6 cm mass in the liver. Analysis of a biopsy sample suggested SCC, and so our team performed a thorough workup to find the primary lesion, which was revealed hepatoma as a pure primary SCC of the liver with multiple distant metastases. The patient was treated with one cycle of radiotherapy, transferred to another hospital for hospice care, and then died 1 month after discharge.     

甲状腺滤泡癌合并鳞状细胞癌1例

甲状腺滤泡癌合并鳞状细胞癌非常罕见,本例肿瘤具有滤泡癌和鳞状细胞癌的组织学特点,两种成分存在移行和过渡,诊断依靠形态学结合免疫组织化学染色和详尽的全身检查。该病进展较快,预后不一,规范治疗后需长期随访。     

甲状腺滤泡癌合并鳞状细胞癌1例

甲状腺滤泡癌合并鳞状细胞癌非常罕见,本例肿瘤具有滤泡癌和鳞状细胞癌的组织学特点,两种成分存在移行和过渡,诊断依靠形态学结合免疫组织化学染色和详尽的全身检查。该病进展较快,预后不一,规范治疗后需长期随访。     

Nasal NK/T cell lymphoma mimicking a squamous cell carcinoma: a case report

A 48 year old female presented with extensive ulceration of the nasal septum of 8 months duration. Investigations confirmed the local nature of the disease. A biopsy revealed large zones of ischemic necrosis and abnormal lymphoid cells invading vessel walls and glandular structures. Florid squamous metaplasia, and pseudoepitheliomatous hyperplasia of mucosal epithelium mimicked squamous cell carcinoma and necrotising sialometaplasia. Immunohistochemistry and insitu hybridization confirmed the diagnosis of an EBV positive, Nasal NK/T cell lymphoma. A Pubmed/Medline search suggests that this is the first documented case from India.     

Hybrid verrucous squamous cell carcinoma of sinonasal tract: a case report.

Verrucous carcinoma is a variant of squamous cell carcinoma and should be distinguished from benign papilloma and well-differentiated nonverrucous squamous cell carcinoma. It is rare tumor of the sinonasal tract. Occasionally, conventional squamous cell carcinomatous components may be seen in verrucous carcinoma. This entity is called a hybrid verrucous squamous cell carcinoma. We report a case of hybrid verrucous squamous cell carcinoma occurring in the nasal cavity and paranasal sinus of a 67-year-old male. The removed mass shows the typical feature of verrucous carcinoma, but focally conventional squamous cell carcinomatous area is also noted. The treatment of this case follows verrucous carcinoma, but close follow up is mandatory because it may potentially spread to regional lymph nodes in contrast to pure form of verrucous carcinoma.     

An unusual double patella: a case report

Double patella following a 'sleeve fracture' in the lower pole of the patellar is rare and even more so after surgical treatment to the original injury. We report such a case in a boy injured at the age of 10, and presenting 3 years later with weakness and effusion. The management is described, including the technique of excision of the accessory patella and the lowering of the larger patella to a normal level. We believe that this is the first such case to be reported after surgical treatment of the primary fracture.     

Primary squamous cell carcinoma of the thyroid--a case report

A rare case of primary squamous cell carcinoma of the thyroid is reported herein. A 64-year-old Malay lady presented with a gradually enlarging thyroid nodule for the past 6 months and underwent total thyroidectomy. Histopathology revealed a squamous cell carcinoma of the thyroid with complete resection. Possible primary tumour elsewhere was excluded. Postoperative irradiation was given and patient is still alive after 2 years of follow-up.     

阴茎假血管肉瘤样鳞状细胞癌1例及文献复习

目的探讨阴茎假血管肉瘤样鳞状细胞癌(SCC)的诊断、组织学和免疫组化特征以及鉴别诊断。方法通过HE、免疫组化及特殊染色观察1例阴茎原发假血管肉瘤样鳞状细胞癌，并复习文献。结果镜下可见显著的棘细胞松解，肿瘤由排列呈腔隙状、网状结构的长梭形细胞组成，细胞异型性明显，核分裂象易见，胞质大多红染，局部区域弥漫出血坏死。免疫表型：CK、Vim阳性，CD34、CD31、SMA、FⅧRAg阴性。网状纤维染色不显示血管外形。结论假血管肉瘤样SCC是一种罕见的易与敌国管肉瘤混淆的特殊形态的SCC．需与血管肉瘤、癌肉瘤等鉴别。     

Primary squamous cell carcinoma of the stomach: a case report and literature review

Primary squamous cell carcinoma (SCC) of the stomach is rare. Its pathogenesis is also unclear and there are conflicting reports about it in the past. Only about 100 cases have been reported so far in the literature. The current study discusses a new case of gastric squamous cell carcinoma, from a 50-year-old Chinese male patient diagnosed via subtotal gastrectomy with Roux-en-Y reconstruction and D2 lymphadenectomy. In the stomach, an ulcerated mass in the antrum, measuring 12×8×6 cm, was observed. Further, pathological examination of the resected specimen revealed a well-differentiated SCC. Observations indicated tumor cell invasion into the serosa, and encroachment into perigastric regional lymph node. A follow-up abdominal CT scan three months later revealed tumor invasion into the ascending colon. We assume that this invaded mass was transferred from the gastric squamous cell carcinoma. Interestingly, the patient is still alive.     

原发性子宫内膜鳞状细胞癌伴子宫内膜不典型增生1例

原发性子宫内膜鳞状细胞癌(primary endometrial squamous cell carcinomas, PESCC)是一种罕见的子宫内膜癌。本文报道1例55岁患者, 刮宫标本及经腹腔镜筋膜外全子宫切除标本组织学形态均显示不同分化程度的鳞状上皮呈浸润性生长, 并见短梭形细胞, 胞质丰富、透亮。刮宫标本中未见正常子宫内膜腺体及异常腺性结构;全子宫切除标本中短梭形与鳞状上皮穿插生长, 侵犯浅肌层, 周围子宫内膜可见慢性子宫内膜炎, 局灶符合子宫内膜不典型增生;免疫表型:明确的鳞状上皮成分及短梭形细胞广谱细胞角蛋白、细胞角蛋白(CK)5/6、p63、β-catenin、CD10均阳性, CK7、CDX2阴性。患者随访8个月, 身体状况良好。PESCC需要严格掌握诊断标准, 除外子宫颈来源的鳞状细胞癌及子宫内膜样癌伴广泛鳞化。该文描述PESCC组织学特点、刮宫及全子宫标本诊断难点、阐述其诊断要点, 并复习和总结相关文献。     

原发性子宫内膜鳞癌1例报道及文献复习

目的探讨子宫内膜鳞癌的临床病理特点。方法对1例原发性子宫内膜鳞癌进行免疫组化观察并结合文献复习其临床病理特点。结果原发性子宫内膜鳞癌镜下为伴角化珠及间桥的高分化鳞癌，浸润子宫壁肌层内2／3，淋巴管见多发性瘤栓。子宫颈和颈管正常。免疫表型：高分子CK( )、低分子CK( )、ER( )、PR( )、HPV胞质阳性、p53( )及P-gp( )。结论原发性子宫内膜鳞癌非常罕见，恶性度高。腺上皮鳞化癌变，可能是其病变过程；HPV的作用还不清楚。该肿瘤术前诊断困难，确诊主要靠术后病理检查。