Primary intraosseous verrucous carcinoma developing from a maxillary odontogenic cyst: case report

Primary intraosseous carcinoma (PIOC) is an extremely rare lesion, almost always occurring in cranial bones. The origin of this tumor, specific to the maxillae, is associated with the cells of the epithelial rests of Malassez. Among the histotypes which can be included in these neoplasms, verrucous carcinoma is of particular interest due to its rarity: only a single case has been reported to date. After a short survey of the literature, the authors describe a directly observed case of verrucous carcinoma arising from a maxillary odontogenic cyst.     

Chemosurgery for verrucous carcinoma

The first cases of verrucous carcinoma treated by chemosurgery are herewith reported. We classify verrucous carcinoma in variants according to site as pan-oral, genito-gluteal, and plantar. Chemosurgery is advocated as the treatment of choice for verrucous carcinoma because ablation, being microscopically monitored, is most likely to be complete, and because by this means maximal conservation of tissue is assured.     

Supervention of a pigmented basal-cell carcinoma upon a nevus sebaceus.

A case is reported of a deeply pigmented, pedunculated mass that developed upon a verrucous nevus. Biopsy proved the combined lesion to be a pigmented basal-cell carcinoma upon a nevus sebaceus. The carcinoma was completely contained in the biopsy and the nevus sebaceus it sprang from was ablated by surgical excision. Modern experience and management of such cases are reviewed briefly.     

Verruciform xanthoma of the penis in a young male masquerading as squamous cell carcinoma: Case Report

Verruciform xanthoma (VX) is a relatively rare benign lesion of unknown etiology with a predilection for oral mucosa. Penis is an uncommon location and to date only 17 cases of VX of penis have been reported. The lesion assumes importance as it can be easily mistaken for verrucous carcinoma or squamous cell carcinoma. We present herein a case of penile VX in a 25-year-old man who was referred to our institute with a histopathologic diagnosis of squamous cell carcinoma reported elsewhere. On microscopy the lesion demonstrated florid verruciform hyperplasia of the epidermis with hyperkeratosis, parakeratosis and acanthosis. There was a dense infiltrate of foam cells in the papillary dermis (a hallmark of VX), which were positive for CD68 and negative for S-100 protein. We present this case to highlight the significance of recognizing VX in extra oral location. An awareness of this entity is crucial to prevent misdiagnosis and halt inappropriate therapeutic intervention. Keywords: penis, squamous cell carcinoma, verruciform xanthoma, verrucous carcinoma.     

阴茎疣状癌的诊断及治疗

目的：探讨阴茎疣状癌的临床诊断及治疗方法。方法回顾性分析1例阴茎疣状癌的临床诊治过程,并结合相关文献进行复习。结果阴茎疣状癌的临床表现及其诊断治疗方法不同于普通阴茎鳞癌,常被误诊为局部感染病灶或低度鳞状细胞癌,明确诊断主要依据病理检查。结论阴茎疣状癌为临床罕见病例,易误诊,手术治疗是其有效治疗手段。     

Cytologically malignant squamous-cell carcinoma arising in a verrucous carcinoma of the penis

A case of verrucous carcinoma with a focus of cytologically malignant squamous-cell carcinoma is presented. This usually occurs following radiation therapy of the verrucous carcinoma, but may rarely occur de novo, as in this case. The potential usefulness of fine-needle aspiration in detecting focal anaplasia in verrucous carcinoma is discussed. This technique may be especially useful if the lesion is to be destroyed cryosurgically.     

Verrucous carcinoma arising in ulcerative lichen planus of the soles

Verrucous carcinoma is a low-grade squamous cell carcinoma. Chronic inflammation is an important factor in its pathogenesis. This is the first case of plantar verrucous carcinoma arising in a lesion of ulcerative lichen planus. This paper also lends further support to the successful use of Mohs micrographic surgical technique as the treatment of choice for verrucous carcinoma.     

Verrucous carcinoma in penile lichen sclerosus et atrophicus

A patient presented with a verrucous carcinoma within a lesion of penile lichen sclerosus et atrophicus. We report a case of lichen sclerosus and the specific squamous cell carcinoma variant, verrucous carcinoma, treated by Mohs surgery.     

Pathological and clinical analysis of 102 cases of lip carcinoma

102 cases (103 tumors) of lip carcinoma treated by surgery are analyzed. There were 37 (35.9%) verrucous carcinoma and 66 (64.1%) squamous cell carcinoma which included grade I 29 cases, grade II 21, grade III 14 and grade IV 2. Of the 66 squamous cell carcinomas, six lesions co-existing with verrucous carcinoma were derived from the latter. This fact demonstrated that anaplastic transformation of verrucous carcinoma could occur in patients without radiotherapy. This study suggests that the enlarged neck lymph nodes need not be dissected prophylactically for patients with squamous cell carcinoma grade I and grade II, and with verrucous carcinoma. The management of the cervical nodes still suffices if they enlarge after the primary lesion has been removed. But radical dissection of neck lymph nodes should be performed promptly for patients with squamous cell carcinoma grade III and grade IV.     

CLINICOPATHOLOGICAL AND SURGICAL STUDY OF VERRUCOUS CARCINOMA OF PENIS

ＣＬＩＮＩＣＯＰＡＴＨＯＬＯＧＩＣＡＬＡＮＤＳＵＲＧＩＣＡＬＳＴＵＤＹＯＦＶＥＲＲＵＣＯＵＳＣＡＲＣＩＮＯＭＡＯＦＰＥＮＩＳＷａｎｇＸｕｚｈｏｕ；ＺｈａｎｇＺｉｘｕａｎ；ＧａｏＺｈｏｎｇｙｕ；ＬｉａｎｓＳｉｔａｉ；ＴｉａｎＪｉｘｉ王绪洲，张紫萱，高促...     

The association of lichen planus of the penis with squamous cell carcinoma in situ and with verrucous squamous carcinoma

Two cases of squamous cell carcinoma (SCC) of the penis, one verrucous type and one in situ, arising in association with an inflammatory dermatosis most consistent with lichen planus, are described. Although SCC has previously been reported to have arisen from lichen planus of the oral mucosa, these are the first reported cases of the coexistence of these processes on the penis.     

Squamous papilloma of the urinary tract is unrelated to condyloma acuminata

BACKGROUND: To the authors' knowledge, there is no previous report of squamous papilloma of the urinary tract. It is uncertain whether there is a correlation between squamous papilloma, condyloma acuminatum, and verrucous carcinoma. METHODS: The authors evaluated the clinical and pathologic features of squamous papilloma (5 of the bladder, 2 of the urethra), condyloma acuminatum (3 cases), and verrucous carcinoma (3 cases) of the urinary bladder and performed human papillomavirus (HPV) DNA in situ hybridization studies to determine whether HPV was a common feature shared by these lesions. In addition, DNA ploidy evaluation by image cytometry and p53 immunohistochemical staining were performed. RESULTS: Squamous papilloma of the urinary tract occurred in elderly women and followed a benign clinical course with infrequent recurrence. All squamous papillomas were HPV DNA negative and DNA diploid with no or minimal p53 nuclear accumulation. Condyloma acuminata of the bladder contained HPV DNA, increased p53 protein expression, and aneuploid DNA content. All three cases of condyloma acuminata were associated with coexistent condylomata of the external genitalia, and two required pelvic exenteration for uncontrolled expansile growth. Verrucous carcinoma of the bladder occurred in elderly patients. All three cases of verrucous carcinoma were negative for HPV DNA and DNA aneuploid, and they exhibited consistent p53 expression. CONCLUSIONS: These data indicate that squamous papilloma is a distinct entity not related to condyloma or verrucous carcinoma. These lesions are benign, HPV DNA negative, DNA diploid, and they lack p53 overaccumulation.     

Sarcomatoid carcinoma of the maxillary sinus: a rare head and neck tumor

Sarcomatoid carcinomas are rare tumors. These tumors have been reported at other sites, but head and neck origin is extremely uncommon. We report here a rare case of sarcomatoid carcinoma involving the maxilla. Only four such cases with maxillary origin have been discussed in English literature earlier. As compared to squamous cell carcinoma of maxilla, this variant is associated with poor prognosis and advanced disease at presentation, as was also seen in our case. There are no standard recommendations for management owing to the rarity of this histology. Surgery and radiotherapy form the mainstays of treatment. Exploration of the role of chemotherapy and novel targeted therapy agents is warranted in order to improve treatment results.     

Verrucous carcinoma of the cervix

An extremely rare case of verrucous carcinoma of the uterine cervix is reported. The most outstanding pathologic feature of this malignant tumor is the benign picture of the proliferative squamous epithelium, with remarkable hyperkeratosis and dyskeratosis. Therefore it is difficult for the pathologist to make an accurate diagnosis on the basis of the biopsy material. Surgery may be best treatment of this special tumor for its behavior of slow invasiveness and rare metastasis.     

人上颌窦癌体外细胞培养初步报告

我们将11例人上颌窦低分化鳞状细胞癌进行体外细胞培养,除1例未生长外,其余10例均见生长。培养人癌细胞存活时间。最长者达18天零3小时,最短苦为8天。其中1例在作直接培养的同时,取部分组织先经裸小鼠体内移植生长后,再作体外细胞培养,培养细胞最长存活时间达27天,最短存活时间为10天。实验表明,体外培养人上颌窦癌细胞在一定时间内生长良好,可望建立单纯稳定的细胞系,并为进一步探讨上颌窦癌的生物学特性及进行药物筛选研究提供有利条件。     

Squamous carcinoma of the foot arising in association with long-standing verrucous hyperplasia in a patient with congenital lymphedema

A patient is reported with congenital lymphedema who developed a squamous cell carcinoma on his affected foot. Parallels are drawn between the development of a squamous cell carcinoma with condylomatous and spindle cell features arising in a setting of long-standing verrucous hyperplasia, as seen in this patient, and the well-recognized phenomenon of angiosarcoma occurring in areas of lymphangiomatous proliferation in patients with chronic lymphedema. The importance of a random genetic mutation occurring in hyperplastic tissue in an immunologically privileged site is discussed. Additional consideration is given, in the current case, to the possibility of viral oncogenesis and the role of ulceration as a promoter factor.     

DNA ploidy in proliferative verrucous leukoplakia

Proliferative verrucous leukoplakia (PVL) is a clinicopathologically distinctive form of oral leukoplakia presenting with multifocal flat, nodular and verrucous lesions that progress inexorably to squamous carcinoma. The aims of this investigation were to describe the clinical and histopathological features of six cases of PVL and to determine whether lesional epithelium demonstrates DNA ploidy anomalies prior to malignant transformation. The clinical and pathological features of six patients were reviewed and all biopsy specimens were subjected to image-based DNA ploidy analysis. The female:male ratio was 5:1 and the average age on first biopsy was 66 years. Only one patient reported both tobacco smoking and alcohol intake. The most frequently affected sites were alveolar ridge and/or gingiva (6/6), buccal mucosa (3/6), palate (3/6), tongue (2/6), buccal sulcus (2/6), and lip (1/6). Three patients developed multiple primary carcinomas, either invasive or verrucous. A ploidy anomaly at any oral site would have predicted malignant transformation in four cases and probably in a fifth for whom DNA ploidy failed to meet diagnostic criteria but was suspicious of aneuploidy. The site of transformation was predicted by ploidy and histopathology for three carcinomas and a further carcinoma showed severe dysplasia and a suspicious ploidy result in adjacent tissue. Both conventional histopathology and DNA ploidy proved effective in predicting the site of transformation in this limited series.     

外阴疣状癌3例并文献复习

目的：探讨外阴疣状癌的发病因素、临床表现、诊断及治疗。方法：回顾分析我院自1989年至今共收治3例外阴疣状癌的临床资料,并结合文献进行探讨。结果：3例疣状外阴癌均为老年,均来自经济落后、卫生条件较差的地区,且早婚、早育、多产,3例都通过2次以上活检确诊。其中2例手术治疗效果较好,术后才确诊为外阴疣状癌,1例第二次活检确诊为外阴疣状癌,放弃治疗死亡。结论：外阴疣状癌临床过程长,远处转移较少,预后较好,临床可疑病例应尽早活检,临床检查与病理结果不相符时建议活检组织要够深,防止误诊。必要时可多次活检以免漏诊。     

上颌窦鳞状细胞癌不同治疗方式的临床疗效及预后分析

目的:探讨49例上颌窦鳞状细胞癌患者的临床疗效并分析生存率.方法:回顾性分析2000年1月至2012年1月收治的49例上颌窦鳞状细胞癌患者临床资料,分别比较单纯手术+术后放疗组患者和诱导化疗+手术+术后放疗组的5年生存率.这些病例(5年内死亡病例随访至死亡日)均随访5年以上,无1例失访.结果:49例病例资料中,随访率为100.0％.5年中29例患者死亡,总生存率为40.8％(20/49),单纯手术+术后放疗者23例,死亡患者15例,生存率为34.8％(8/23);诱导化疗+手术+术后放疗者26例,死亡患者14例,生存率为46.2％ (12/26),两组生存率比较,差异有统计学意义(P＜0.05).结论:上颌窦鳞状细胞癌主要的死亡原因与临床分期及术后复发转移密切相关,以手术为主的综合治疗有益于上颌窦鳞状细胞癌疗效的提高,控制局部瘤体病变及预防术后复发是影响上颌窦鳞状细胞癌疗效的关键.