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974 Possible Causes for Pigmented Tumor

  • Skin Cancer

    Telangiectasias and a pearly, rolled border in dark skin or in a pigmented tumor may be difficult to discern.[] Melanoma is a malignant tumor that originates in melanocytes, the cells that produce the pigment melanin which colors our skin, hair and eyes.[] , with up to 60-75 percent of tumors arising on the palms, soles, mucous membranes and nail regions. 25 Basal cell carcinoma (BCC) is the most common cancer in Caucasians,[]

  • Basal Cell Carcinoma

    Reflected-light microscopy is a non-invasive method for investigating skin tumors, which is used especially for early detection and diagnostic assessment of pigmented tumors[] The original tumors were not noted to be pigmented.[] Tumor surface is glossy and translucent like a "gem". Sometimes basal cell carcinoma is pigmented, nodal or ulcer type.[]

  • Iris Melanoma

    A pigmented tumor measuring 3 1 mm was seen in the left eye in the inferonasal part of the iris and the anterior chamber angle, beginning in the ciliary body and iris root[] Fundoscopy AFIP images Ciliary body tumor Orange pigment Vessels over tumor are out of focus Gross description Small uveal melanomas may be difficult to distinguish from a[] Figure 1B: Histopathologic examination reveals a minimally pigmented vascularized tumor composed of spindle A and spindle B cells.[]

  • Rosacea

    Figure 16 Pigmented BCC. Dark nodule (resulting from melanin deposition) at the alar of the nose. Small ulceration at the center. Figure 17 Scar-like morphea-like BCC.[] A biopsy can be necessary to differentiate fibrous papules from benign adnexal tumors or basal cell carcinomas (BCCs) that sometimes closely resemble its "pearly" appearance[] Histopathologically, a clear cell fibrous, hypercellular fibrous, inflammatory fibrous, pigmented fibrous, pleiomorphic fibrous papule and epithelioid variant can be distinguished[]

  • Tendon Sheath Giant Cell Tumor

    The main purpose of this study is to gather information about the investigational drug pexidartinib, which may help to treat tumors of pigmented villonodular synovitis (PVNS[] : Pigmented villonodular synovitis (diffuse tenosynovial giant cell tumor).[] TERMINOLOGY Abbreviations Giant cell tumor of tendon sheath (GCTTS) Synonyms Localized tenosynovial giant cell tumor, localized pigmented villonodular synovitis (PVNS), nodular[]

  • Actinic Keratosis

    Spreading pigmented actinic keratosis is a rarely reported premalignant, pigmented, epidermal tumor that can be difficult to distinguish clinically from other benign and malignant[] […] skin tumors. 9 The use of dermoscopy can also assist with the diagnosis of non-pigmented or “pink” tumors (lesions) with the emphasis on blood vessel morphology and pattern[] A large number of cases of actinic keratosis have been related with the mutations in TP53 gene, the tumor suppressor gene.[]

  • Pigmented Villonodular Synovitis

    […] villonodular synovitis Diffuse pigmented villonodular synovitis TSGCT Tenosynovial giant cell tumors Diffuse-type giant cell tumor Statements Pigmented villonodular synovitis[] To describe a rare case of tenosynovial giant cell tumor, diffuse type/pigmented villonodular synovitis (PVNS) in a pars defect in a patient with lumbar spondylolysis.[] Intra- and extra-articular giant cell tumor of tendon sheath (GCTTS) and pigmented villonodular synovitis (PVNS) are histologically similar, usually benign tumors that can[]

  • Ganglion Cyst

    The differential diagnosis of intraosseous ganglion includes unicameral bone cyst, chondromyxoid fibroma, Brodie's abscess, giant-cell tumor, fibrous dysplasia and pigmented[] , fibrous dysplasia and pigmented villonodular synovitis.[] Our patient underwent an open biopsy, and the pathological examination revealed a benign tumor.[]

  • Carney Complex

    Melanotic schwannoma is a rare form of pigmented neural tumor commonly arising from the posterior spinal nerves and ganglia.[] […] neoplasia syndrome involving skin and cardiac myxomas, pigmented skin lesions and endocrine tumors.[] Carney complex (CNC) is a multiple neoplasia syndrome that is inherited in an autosomal dominant manner and is characterized by skin tumors and pigmented lesions, myxomas,[]

  • Sunburn

    Chronic sun exposure may lead to premature aging , severe wrinkling, pigmented skin lesion development ( moles ), and various malignant (cancerous) skin tumors.[]

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