نتایج جستجو برای: melanoma diagnosis
تعداد نتایج: 516336 فیلتر نتایج به سال:
BACKGROUND The negative pigment network (NPN) is seen as a negative of the pigmented network and it is purported to be a melanoma-specific structure. OBJECTIVES We sought to assess the frequency, sensitivity, specificity, and odds ratios (ORs) of NPN between melanoma cases and a group of control lesions. METHODS Digitalized images of skin lesions from 679 patients with histopathological dia...
This review deals with difficulties of diagnosis in cutaneous malignant melanoma encountered by histopathologists of variable seniority and is based on referred material at The Royal Marsden Hospital over a 20-year period and on the experience of more than two-and-a-half thousand cases referred to The World Health Organisation Melanoma Unit which I reviewed when chairman of the Pathologists' Co...
Expect to encounter 6 to 7 cases of basal cell cancer, 1 to 2 cases of squamous cell cancer, and approximately 1 case of melanoma every year. There is good evidence for using the American Cancer Society's ABCDE criteria as a clinical diagnostic test to rule out malignant melanoma). The revised 7-point checklist has high sensitivity and is therefore useful for ruling out a diagnosis of malignant...
Objective The main objective of this paper is to emphasize the importance of the early diagnosis of certainty in the cases of acral-acroma malignant melanoma in order to increase the survival rate. Method The paper is a review of specialty literature and presents a clinical case of acral-acroma malignant melanoma. Clinical case: acral-acroma malignant melanoma with confirmed lymph node metast...
Case Report. A 47-year-old man presented with blurred vision in the right eye. Ophthalmoscopic examination showed several placoid, pigmented lesions in the posterior pole and midperiphery of the retina of both eyes. Results. Patient referred a cutaneous malignant melanoma on the back skin removed 6 years ago. A systemic workup revealed multiple metastases in liver and spleen. After an exhaustiv...
Melanoma is one of lethal malignant skin tumors and the sole effective cure for the disease can be achieved by surgical resection of primary tumor and early diagnosis for melanoma is crucial for patients' prognosis. Detection of novel tumor-related antibodies would aid in the diagnosis of early-stage cancer, in the detection of recurrence and in the development of a more effective immunotherapy...
The small bowel is the most common site of gastrointestinal metastasis from cutaneous melanoma. Malignant melanoma has a poor prognosis, especially if distant metastases appear. Although rare primary melanoma of the small bowel has been described, more frequently these lesions originate from unknown cutaneous melanoma. Here we report the case of a 58-year-old man with a diagnosis of melanoma of...
BACKGROUND Unusual metastatic presentation of intra-ocular melanoma. STUDY DESIGN Case report. DISCUSSION Extra-regional lymphatic spread of intra-ocular melanoma has not been reported previously in the literature. The usual pattern of metastasis for intra-ocular melanoma is hematogenous. There are few reports of regional spread to the maxillofacial bones. We report an interesting case of a...
The COVID-19 pandemic has severely hampered the functioning of any health system, absorbing a considerable amount resources and with threat widespread infection in services. present survey been carried out Italy to evaluate if how also affected skin melanoma management. We enrolled 13 Italian centres highly qualified diagnosis care melanoma. compared set information evaluating activity for perf...
Background: Skin cancer is one of the most common forms of cancer in the world and melanoma is the deadliest type of skin cancer. Both melanoma and melanocytic nevi begin in melanocytes (cells that produce melanin). However, melanocytic nevi are benign whereas melanoma is malignant. This work proposes a deep learning model for classification of these two lesions. Methods: In this analytic s...
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