1/123. Detection of human papilloma virus type 58 in a case of a perianal bowen's disease coexistent with adult T-cell leukemia.A case of bowen's disease (BD) that appeared in the perianal region of a 65-year-old Japanese woman coexistent with chronic adult T cell leukemia (ATL) is described. Histopathological findings revealed that irregularly arranged tumor cells with atypical nuclei throughout the epidermis, which itself disclosed hyperkeratosis, dyskeratotic cells, and clumping cells. Positive staining for HPV antigens was immunohistochemically seen in several nuclei of the tumor cells. Electron microscopic study of the tumor tissue disclosed virus particles of about 50 nm in diameter form the squamous cells. A positive band at 256 bp was obtained by PCR using HPV-L1 primer. The amplified dna by L1 primer completely corresponded to that of HPV-58.- - - - - - - - - - ranking = 1keywords = squamous cell (Clic here for more details about this article) |
2/123. arsenic-related bowen's disease, palmar keratosis, and skin cancer.Chronic arsenical intoxication can still be found in environmental and industrial settings. Symptoms of chronic arsenic intoxication include general pigmentation or focal "raindrop" pigmentation of the skin and the appearance of hyperkeratosis of the palms of the hands and soles of the feet. In addition to arsenic-related skin diseases including keratosis, bowen's disease, basal-cell-carcinoma, and squamous-cell carcinoma, there is also an increased risk of some internal malignancies. arsenic-related diseases are common in areas of the world where the drinking water has a high arsenic content. In this paper, we describe a 35-year-old male patient who had arsenic-related keratosis, squamous-cell carcinoma in the palmar area of his left hand, and bowen's disease on his left thigh. The patient worked in a borax mine for 15 years, so he was exposed to arsenic in drinking water, airborne arsenic in his workplace, and had direct contact. The patient was treated for 11 months for arsenic-related keratosis until an axillary lymph node metastasis occurred; the lesion was excised and diagnosed to be malignant. bowen's disease was detected when the patient was being treated for cancer. No other malignancy was found. The patient is still receiving regular follow-up care.- - - - - - - - - - ranking = 6.8661420810308keywords = carcinoma (Clic here for more details about this article) |
3/123. Isolated extragenital bowenoid papulosis of the neck.We report a case of extragenital bowenoid papulosis (BP) in a healthy immunocompetent 42-year-old man. The lesions occurred on the anterolateral aspects of the neck and were not associated with genital, oral, or periungual lesions. Lesional skin tested positive with the Digene hybrid capture system cocktail assay that identifies infection with a mixture of high to intermediate oncogenic human papillomavirus (HPV) types, including types 16, 18, 31, 33, 35, 45, 51, 52, and 56. This cocktail assay identifies infection with HPV types typically associated with high-grade squamous intraepithelial lesions and invasive carcinoma. This case represents the sixth case of isolated cutaneous BP occurring a significant distance from the genital region.- - - - - - - - - - ranking = 2.2887140270103keywords = carcinoma (Clic here for more details about this article) |
4/123. Bowen's diseases and basal cell carcinomas in a patient.bowen's disease is a well-known precancerous lesion, in which invasive squamous carcinoma may develop. However, it is rare that bowen's disease, basal cell carcinoma, and internal malignancy develop in a single patient. We report a case of a 54-year-old male patient with bowen's disease, basal cell carcinoma of the skin, and squamous cell carcinoma of the lung. Multiple scaly erythematous patches had developed several years earlier and were diagnosed as bowen's disease by skin biopsy. The number of lesions increased and, five months ago, a right lower lobectomy was done for squamous cell carcinoma which was detected on a chest X-ray. Skin biopsies of two different sites revealed bowen's disease and basal cell carcinoma. The arsenic level was increased in his hair specimen. cryotherapy was applied.- - - - - - - - - - ranking = 24.887140270103keywords = carcinoma, squamous cell (Clic here for more details about this article) |
5/123. Pagetoid bowen disease: a report of 2 cases that express cytokeratin 7.Bowen disease is a variant of squamous cell carcinoma in situ. In some cases a pagetoid growth pattern can be observed with cytologically atypical clear cells arranged singly and in nests. The differential diagnosis of pagetoid Bowen disease includes primarily Paget disease and malignant melanoma in situ, as well as other less common entities. Two cases of pagetoid Bowen disease are described, one in a 65-year-old man with a thigh lesion and the other in a 25-year-old man with a lesion in the penile/scrotal region. Neither patient had clinical evidence of an internal malignant neoplasm. In both cases, the neoplastic cells were positive for cytokeratin (CK) 7 and CK 19 and were negative for CK 18, CK 20, carcinoembryonic antigen, GCDFP-15, c-erbB2, S100, and HMB-45. In aggregate, these findings support the diagnosis of pagetoid Bowen disease. Previously, others have shown that CK 7 is an almost invariable marker of Paget disease. Thus, we report these two cases to illustrate that CK 7 can be expressed by pagetoid Bowen disease and should not be a cause of confusion in the differential diagnosis.- - - - - - - - - - ranking = 3.2887140270103keywords = carcinoma, squamous cell (Clic here for more details about this article) |
6/123. Photodynamic therapy for residual neoplasms of the perianal skin.PURPOSE: The aim of this study was to evaluate the efficacy of photodynamic therapy in the management of residual neoplasms of the perianal skin. methods: This is a retrospective review. Five patients with pathologic confirmation of residual perianal neoplasms were treated with photodynamic therapy. There were three females. The mean age was 52 (range, 33-79) years. pathology consisted of bowen's disease in two patients, squamous-cell carcinoma in two patients, and extramammary Paget's disease in one patient. Four patients received one photodynamic therapy treatment and one patient received two treatments three months apart. RESULTS: Treatment was followed by immediate perianal erythema, subsequent blister formation in 36 to 48 hours, and sloughing of the treated area in 72 hours. With a mean follow-up of 5.2 (range, 1-8) years, there were two recurrences. One recurrence was in a patient four years after treatment for Paget's disease, and the other was in a patient nine months after treatment for bowen's disease. The latter was managed successfully with wide local excision. Treatment-related toxicities included significant perianal pain in four patients, controlled with analgesia management. CONCLUSIONS: Photodynamic therapy can successfully be used after wide local excision for residual neoplasms of the perianal skin. Treatment can be rendered with acceptable morbidity.- - - - - - - - - - ranking = 2.2887140270103keywords = carcinoma (Clic here for more details about this article) |
7/123. bowen's disease of the glans penis (erythroplasia of Queyrat) in plasma cell balanitis.We report a case of a persistent penile plaque on the glans penis of allegedly more than 20 years' duration, which was refractory to circumcision and local treatment. Over the years, the patient repeatedly presented with a circumscribed inflammatory lesion of the glans penis, diagnosed as Zoon's balanitis on the basis of clinical aspects and two biopsies. Because of unresponsiveness of the lesion to circumcision and focal steroid infiltration, repeated biopsies were performed in an attempt to rule out malignancy. Two further biopsies were carried out. One again showed the features of a plasmacellular inflammation, while the other finally revealed the histopathologic features of erythroplasia of Queyrat (carcinoma in situ or bowen's disease of the glans penis). We assume that either the former biopsy specimens were taken from a plasma cell-rich reactive infiltrate around the neoplastic lesion, or that carcinoma in situ may have arisen due to the chronic inflammation of Zoon's balanitis plasmacellularis. radiotherapy was performed with good clinical response and subsequent histopathologic proof of complete remission of the lesion.- - - - - - - - - - ranking = 4.5774280540206keywords = carcinoma (Clic here for more details about this article) |
8/123. Development of squamous cell carcinoma by two high-risk human papillomaviruses (HPVs), a novel HPV-67 and HPV-31 from bowenoid papulosis.We report a patient with bowenoid papulosis (BP) involving two high-risk human papillomaviruses (HPVs) and the development of invasive squamous cell carcinoma (SCC). Our patient showed verrucous lesions on the penis, perianal area and groin that had been noted over the previous 8 years and had recurred after all therapeutic approaches. The perianal and left inguinal lesions revealed invasive SCC on histology. HPV-31 and HPV-67 sequences were detected by polymerase chain reaction from BP lesions of the perianal area and the shaft of the penis. HPV-31 has already been reported in BP as a high-risk HPV for the development of SCC, but HPV-67 is a novel one that has never been reported in BP. As HPV-67 has sequence homology to HPV-52 and HPV-58, it belongs to the family of HPV-16, a high-risk HPV group. Thus our patient showed two high-risk HPVs, i.e. HPV-31 and the novel HPV-67, which may be directly involved in the development of SCC.- - - - - - - - - - ranking = 16.443570135051keywords = carcinoma, squamous cell (Clic here for more details about this article) |
9/123. Hyperthermic treatment of bowen's disease with disposable chemical pocket warmers: a report of 8 cases.bowen's disease is a form of squamous cell carcinoma in situ, in which local hyperthermia may be efficacious. We studied 8 patients with bowen's disease to ascertain whether hyperthermia can be effective against it. As a heat source, disposable chemical pocket warmers were applied daily with pressure directly to the lesion site while the patient was awake, and the clinical course was observed for 4 to 5 months. The lesion was then excised and examined to determine the histopathologic effects. The results showed efficacy in 6 cases, in which the nodular and invasive lesions and the erythematous patches abated; then the lesions disappeared, leaving deposits of pigment (complete remission). In one case, the signs improved by at least 50% (partial remission); in the other case, there was only slight palliation (no response). As for the posttreatment histopathologic effects, tumor cells were eliminated in 3 cases, isolated tumor cells were seen in 3 cases, and there was no change in 2. Although the treatment did not yield perfect results, it represents a major improvement of hyperthermic therapy and is one effective method of treating bowen's disease.- - - - - - - - - - ranking = 3.2887140270103keywords = carcinoma, squamous cell (Clic here for more details about this article) |
10/123. Pigmented bowen's disease (squamous cell carcinoma in situ): a mimic of malignant melanoma.BACKGROUND: Darkly pigmented individuals may manifest unusual or uncharacteristic presentations of various skin conditions, including heavy pigmentation of cutaneous tumors. OBJECTIVE: To increase the awareness of an unusual presentation of bowen's disease in a darkly pigmented individual. methods: We report the case of a 52 year old black woman that presented with a lesion clinically consistent with malignant melanoma. However, histopathologic examination revealed pigmented bowen's disease. RESULTS: A biopsy is almost always indicated to confirm the diagnosis of lesions in darkly pigmented individuals. CONCLUSION: This case is presented to reinforce the idea that pigmented bowen's disease should be considered in the differential diagnosis of malignant melanoma.- - - - - - - - - - ranking = 13.154856108041keywords = carcinoma, squamous cell (Clic here for more details about this article) |
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