Track topics on Twitter Track topics that are important to you
Background: TNM classifications are the basis for diagnostic and therapeutic procedures in oncology. Histopathological reports have to enable a proper indexing of tumor specific findings into recent classifications. Methods: A systematic review of the literature was performed to identify reports dealing with the assessment of mitotic rate and the processing and evaluation of sentinel node biopsies in malignant melanoma. On the basis of this review an expert panel of dermatopathologists and general pathologists discussed and agreed recommendations for general practice. Results: Following recommendations were agreed with a broad consensus (93-100 % agreement): The determination of the mitotic rate in primary melanoma is performed on HE slides. The evaluation of an area of 1 mm(2) is sufficient. Only dermal mitoses are considered. The counted number of mitoses is provided as an integer value. The mitotic rate shall be determined in primary melanomas of ≤1.00 mm vertical tumor thickness according to the hot-spot method and provided as an integer value in relation to an area of 1 mm(2) . The determination of the mitotic rate in the case of thicker primary melanomas is desirable. In general, for the evaluation of each sentinel lymph node, 4 slides should be prepared. For diagnostic purposes, immunohistochemistry (preferably with antibodies against S100ß, Melan A and HMB-45) should be performed in addition to HE staining. The pathology report should provide information about micro-metastases and their longest extension (one-tenth of a millimeter). Conclusions: These recommendations are suitable for standardizing the histopathological diagnosis of malignant melanoma and for providing a common basis for clinical decisions and scientific research.
Department of Dermatology, Tübingen University Hospital, Germany Dermatologicum Hamburg, Germany Institute of Pathology, Tübingen, Germany Dermatopathology practice, Friedrichshafen, Germany Department of Dermatology and Venereology, Cologne University
This article was published in the following journal.
Name: Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG
Malignant Melanoma of nasal cavity is an extremely rare tumour and is more aggressive than its cutaneous counterpart. Primary malignant melanoma of nasal cavity arise from melanocytes located in the m...
Extracutaneous locations of primary malignant melanoma are rare. In the respiratory system most melanomas present as metastatic tumors. For the diagnosis of primary lung melanoma, strict histopatholog...
The aim of the present study was to evaluate the usefulness of four interleukins (IL-2, IL-6, IL-8 and IL-10) for melanoma detection and correlate these interleukins with sentinel node metastasis posi...
Malignant melanoma is an invasive neoplasm of the skin, whose incidence is reported to be rising among Indians. We hereby present a unique case of unilateral, multiple, asymptomatic, pigmented, nodula...
Mature cystic teratomas, also known as dermoid cysts, are composed of a mixture of tissues derived from all three germ layers and constitute about 20% of all ovarian neoplasms. However, malignant tran...
This is an open label, single centre, phase II study of neoadjuvant drug treatment with dabrafenib + trametinib in patients with resectable American Joint Committee on Cancer (AJCC) Stage ...
This is a pilot trial to investigate the use of GM-CSF DNA as an adjuvant for peptide vaccination in patients with metastatic melanoma. The objective of this study is to determine the safe...
The purpose of this research study is to find out whether JX-594 is safe and effective for treating surgically unresectable malignant melanoma.
The purpose of this project is to analyze tumour tissue from a group of subjects with malignant melanoma, who have been treated at the Royal Marsden Hospital.
The purpose of this study is to determine whether rituximab as an adjuvant therapy in clinical stage IIIc / IV (no evidence of disease, AJCC 2002) melanoma patients is safe and prolongs ov...
An unpigmented malignant melanoma. It is an anaplastic melanoma consisting of cells derived from melanoblasts but not forming melanin. (Dorland, 27th ed; Stedman, 25th ed)
Tumors of the iris characterized by increased pigmentation of melanocytes. Iris nevi are composed of proliferated melanocytes and are associated with neurofibromatosis and malignant melanoma of the choroid and ciliary body. Malignant melanoma of the iris often originates from preexisting nevi.
A benign compound nevus occurring most often in children before puberty, composed of spindle and epithelioid cells located mainly in the dermis, sometimes in association with large atypical cells and multinucleate cells, and having a close histopathological resemblance to malignant melanoma. The tumor presents as a smooth to slightly scaly, round to oval, raised, firm papule or nodule, ranging in color from pink-tan to purplish red, often with surface telangiectasia. (Dorland, 27th ed)
A cellular subtype of malignant melanoma. It is a pigmented lesion composed of melanocytes occurring on sun-exposed skin, usually the face and neck. The melanocytes are commonly multinucleated with a "starburst" appearance. It is considered by many to be the in situ phase of lentigo maligna melanoma.
Found in large amounts in the plasma and urine of patients with malignant melanoma. It is therefore used in the diagnosis of melanoma and for the detection of postoperative metastases. Cysteinyldopa is believed to be formed by the rapid enzymatic hydrolysis of 5-S-glutathionedopa found in melanin-producing cells.
There are three main types of skin cancer: basal cell carcinoma, squamous cell carcinoma and malignant melanoma. Basal cell carcinoma Basal cell carcinoma, or BCC, is a cancer of the basal cells at the bottom of the epidermis. It’s very common ...
Bladder Cancer Brain Cancer Breast Cancer Cancer Cervical Cancer Colorectal Head & Neck Cancers Hodgkin Lymphoma Leukemia Lung Cancer Melanoma Myeloma Ovarian Cancer Pancreatic Cancer ...
Collaborations in biotechnology
Commercial and academic collaborations are used throughout the biotechnology and pharmaceutical sector to enhance research and product development. Collaborations can take the form of research and evaluation agreements, licensing, partnerships etc. ...