1/228. Verruciform xanthoma associated with squamous cell carcinoma.Verruciform xanthoma (VX) is a rare lesion of unknown etiology that is typically solitary and predominantly located within the oral cavity. Less commonly, they arise on the skin, with the majority of cases occurring in anogenital sites. They can be confused clinically with verruca vulgaris, condyloma, leukoplakia, verrucous carcinoma, and squamous cell carcinoma. Histologic features include acanthosis with uniform elongation of the rete ridges and xanthomatous cells that lie in and are typically confined to the papillary dermis. Although epidermal atypia is not a characteristic finding, we describe an unusual case of VX that has features of both VX and squamous cell carcinoma. In addition, there was a VX with typical histologic characteristics located at a separate site in the same patient. This case is also the first to our knowledge to be reported on the neck and axilla and is the third case associated with cutaneous graft versus host disease secondary to bone marrow transplant for acute lymphoblastic leukemia.- - - - - - - - - - ranking = 1keywords = ridge (Clic here for more details about this article) |
2/228. Laryngeal pathology in the acquired immunodeficiency syndrome: diagnostic and therapeutic dilemmas.The acquired immunodeficiency syndrome has produced a growing population of patients who, because of their associated immune system compromise, are prone to opportunistic infections and neoplastic diseases. The larynx, with its relatively inaccessible yet critical anatomic location, is a site in which these processes can produce clinical dilemmas, with respect to diagnosis as well as to therapy. By presenting 4 cases involving unusual laryngeal problems in patients infected with the human immunodeficiency virus (hiv), we emphasize these inherent diagnostic and therapeutic problems. Otolaryngologists must be familiar with the many diagnostic possibilities and therapeutic alternatives when hiv-infected patients present with laryngeal complaints.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
3/228. Mohs' surgery as an approach to treatment of multiple skin cancer in rhinophyma.BACKGROUND: skin cancer arising within a rhinophyma is rare, less than would be expected from the coexisting chronic active inflammatory process. In rhinophyma, multiple coexisting tumours of different histologic types present an unusual challenge and have never been described in the literature. OBJECTIVE: The treatment approach to multiple tumours occurring in rhinophyma, utilizing Mohs' surgery, is reported and discussed. PATIENT: The case of a 64-year-old farmer with basal cell carcinoma, squamous cell carcinoma, and basosquamous carcinoma occurring in the setting of longstanding rhinophyma is described. CONCLUSION: skin cancer, especially basal and squamous cell carcinoma, diagnosed simultaneously in a rhinophyma creates a challenge; the enlarged, inflamed, and hypertrophied tissue masks their margins. In our opinion, Mohs' micrographic surgery is the treatment of choice and should be primarily considered in view of the malignant potential of these tumours, as is shown by the substantial tumour extension in the case described.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
4/228. Squamous cell carcinoma of the breast following silicone injection of the breasts.During the 1960s, injecting liquid silicone into the breasts for augmentation purposes was a common practice. Many women suffered complications, usually developing silicone mastopathy, but there have been reports of carcinoma as well. A case of squamous cell carcinoma of the breast is reported in a patient who had previously undergone injection of silicone into the breasts. Upon review of the literature, this is only the second reported case of squamous cell carcinoma of the breast following silicone injection. Squamous cell carcinoma of the breast is a very rare tumor comprising 0.04 to 0.075 percent of all breast malignancies. The tumor appears to develop from metaplasia of benign epithelial cells within the breast. Many theories are presented for the development of this metaplastic process. The clinical presentation, evaluation, and treatment of squamous cell carcinoma of the breast is quite similar to that of infiltrating ductal carcinoma of the breast of comparable stage and size.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
5/228. radiation-induced esophageal carcinoma 30 years after mediastinal irradiation: case report and review of the literature.A 54-year-old man who had been irradiated in 1964 for cervical involvement by Hodgkin's disease was admitted in December 1994 to our clinic with strong complaints of dysphagia. The reason was a moderately differentiated squamous cell carcinoma of the proximal esophagus in the previously irradiated region. The patient had no risk factors (abuse of nicotine or alcohol) for the developement of esophageal carcinoma. A reirradiation was performed, but the disease progressed locally and two weeks after the beginning of the therapy the patient developed two tracheoesophagocutaneous fistulae. The radiation therapy was discontinued and the tumor stenosis was bridged by a tube closing the fistulae. A retrospective dose analysis to evaluate the applied doses will be performed. Furthermore, an overview of 66 cases of the literature with radiation-induced esophageal carcinoma analysed concerning applied dose and latent interval will be given. In conclusion the reported case fits the criteria for radiation-induced malignancies (Chudecki Br J Radiol 1972;45:303-4) known from literature: (1) a history of previous irradiation, (2) a cancer occurring within the irradiated area, (3) gross tissue damage due to an excessive dose of radiation, and (4) a long latent interval between irradiation and development of cancer. Esophageal carcinomas belong to the rare secondary malignancies after the therapeutic use of ionizing radiation. Nevertheless in patients with dysphagia they should be suspected as a differential diagnosis even many years after mediastinal irradiation. The treatment of these tumors is very difficult and is associated with a poor prognosis.- - - - - - - - - - ranking = 1keywords = ridge (Clic here for more details about this article) |
6/228. Heterotopic sebaceous glands in the esophagus: histopathological and immunohistochemical study of a resected esophagus.A resected esophagus with numerous heterotopic sebaceous glands was examined in an attempt to determine whether esophageal heterotopic sebaceous glands are the result of a metaplastic process or a congenital anomaly. The present case concerns a 79-year-old Japanese man with numerous esophageal heterotopic sebaceous glands accompanied by superficial esophageal cancer. The resected esophagus possessed numerous heterotopic sebaceous glands, which could be seen clearly as slightly elevated, yellowish lesions. Histological examination of these glands, all of which were located in the lamina propria, revealed lobules of cells that showed characteristic sebaceous differentiation. Bulbous nests of proliferating basal cells showing sebaceous differentiation were occasionally observed in the esophageal epithelium. Of the antibodies against six different keratins used, only anti-keratin 14 labeled both the heterotopic sebaceous glands and the bulbous nests. Acquired metaplastic change of the esophageal epithelium is probably the pathogenetic mechanism involved in these unusual lesions.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
7/228. Pigmented squamous cell carcinoma of the scrotum associated with a lentigo.Only 13 cases of pigmented squamous cell carcinoma (SCC) have been reported in the English language literature, with most frequent development in the oral cavity and conjunctiva. However, no case of pigmented SCC of the scrotum has been reported. We report here a case of pigmented SCC that arose primarily in the scrotum of a 70-year-old man. light microscopically, this tumour exhibited the typical features of a pigmented SCC, including not only keratinization and intercellular bridges but also colonization by plump dendritic melanocytes with marked pigmentation. These features were clearly confirmed by immunohistochemistry, including strong positivity of tumour cells for high-molecular-weight cytokeratin and of colonizing melanocytes for HMB-45. The tumour was associated with a lentiginous lesion and partly involved it. melanocytes entrapped from the lentigo might therefore have been activated during enlargement of this tumour, resulting in melanocyte colonization. Fourteen cases of pigmented SCC, including ours, are clinicopathologically reviewed.- - - - - - - - - - ranking = 1keywords = ridge (Clic here for more details about this article) |
8/228. Surgical management of acquired laryngopharyngeal fistulae.Pathological communication between the food and air passages in the neck region due to malignant disease is known. However, such a pathology arising as a result of a non malignant process is relatively uncommon, and only a handful of reports exists in the literature. The authors describe and discuss the management of two patients with laryngopharyngeal fistula of nonmalignant etiology.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
9/228. Human papillomavirus-associated penile squamous cell carcinoma in hiv-positive patients.Two cases of penile squamous cell carcinoma with distinctive clinicopathologic characteristics are presented. The tumors appeared in patients infected with hiv and were located in the glans of the penis. Histologically, the neoplasms were well-differentiated, infiltrating, squamous cell carcinomas. The entire spectrum from benign condyloma to infiltrative squamous cell carcinoma was present in the two patients. In both cases, human papillomavirus (HPV) could be demonstrated using polymerase chain reaction analysis. The reported cases suggest a synergic interaction of HPV and hiv in the carcinogenic process of some penile carcinomas.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
10/228. Proliferative verrucous leukoplakia: report of two cases and a discussion of clinicopathology.Proliferative verrucous leukoplakia (PVL) is a recently delineated but poorly recognized form of multifocal leukoplakia that is premalignant and of unproven origin. PVL generally presents as a simple benign form of hyperkeratosis that tends to spread and become diffuse. Although slow-growing, the disease is persistent and irreversible. Clinically, PVL often presents as an exophytic wart-like form of leukoplakia that appears to be resistant to nearly all forms of therapy. PVL of the oral cavity is best-defined as a continuum of oral epithelial disease with hyperkeratosis at one end of a clinical and microscopic spectrum and verrucous carcinoma or squamous cell carcinoma at the other. The microscopic findings associated with PVL are dependent on the stage of the disease and the adequacy of the biopsy. Microscopic findings can be markedly variable. PVL is a clinicopathologic disorder that includes the microscopic entity known as verrucous hyperplasia as a component of its histopathologic progression. This article reports on two cases of PVL, describes the clinicopathology of the disease process, and presents therapeutic and etiologic considerations.- - - - - - - - - - ranking = 0.10442728459057keywords = process (Clic here for more details about this article) |
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