HMB-45


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HMB-45

An antibody to a premelanosome glycoprotein found to be present in melanomas and other tumors derived from melanocytes.
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Immunohistochemical staining revealed that the tumor cells were immunoreactive for vimentin, HMB-45, S-100, and Melan-A.
Radiological Findings of the Primary Female Urethral Malignant Melanoma: A Rare Case Report
Immunoreactivity for vimentin, S-100 protein, and HMB-45 is regularly present, melanocytomas in contradistinction to meningiomas--being EMA negative.
NEUROCUTANEOUS MELANOSIS
Immunocytochemical staining with thyroglobulin and TTF-1 combined with melanocytic markers, for example MARTI (melanoma antigen recognized by T cells 1), HMB-45 (human melanoma black 45) (Figure 3, D), S-100 protein, and microphthalmia transcription factor (MITF), can be useful in these cases.
Metastases to the Thyroid: Potential Cytologic Mimics of Primary Thyroid Neoplasms
Markers of muscular differentiation (desmin, myogenin, MyoD1, and smooth-muscle actin) and melanocytic markers (S100-protein, HMB-45, and melan-A) were negative.
Pseudomyogenic hemangioendothelioma: a little-known tumor
Neoplastic cells were positive for S100, HMB-45, and vimentin.
Congenital malignant melanoma of the dura
The histopathological diagnosis can be assisted by the use of immunohistochemical markers, such as HMB-45 and S-100.
PRIMARY MALIGNANT MELANOMA OF THE FEMALE URETHRA - A CASE REPORT/PRIMARNI MALIGNI MELANOM ZENSKE URETRE - PRIKAZ SLUCAJA
(New Jersey), using the following antibodies; S100, Human Melanoma Black 45 (HMB-45), vimentin, Melan A, factor XIIIa, and CD68.
Primary Clear Cell Sarcoma of the Dermis Mimicking Malignant Melanoma
Incisional biopsy of the left inguinal lymph node revealed metastatic round cell tumor which is immunohistochemistry positive for vimentin, S100, and HMB-45. The immunophenotype is consistent with malignant melanoma (Figure 1).
Metastatic Melanoma of Uncertain Primary with 5-Year Durable Response after Conventional Therapy: A Case Report with Literature Review
(d) HMB-45 demonstrates salient cytoplasmic immunoreactivity, supporting melanocytic phenotype (HMB-45, 400x).
An Inguinal Perivascular Epithelioid Cell Tumor Metastatic to the Orbit
The cells showed a positive reaction for HMB-45 antigen [Figure 1]b.
Pulmonary Lymphangiomyomatosis Associated with Renal and Hepatic Angiomyolipoma Mass in a Patient with Tuberous Sclerosis Complex
The patient was diagnosed with PEComa following human melanoma black-45 (HMB-45) monoclonal antibody expression and 2 mitoses under 50x magnification during pathological examination.
Perivascular Epithelioid Cell Tumor of the Kidney: A Rare Case Report / Bobregin Perivaskuler Epiteloid Hucre Tumoru: Nadir Bir Olgu Sunumu

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