Search Results for: pagetoid reticulosis

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A Clinical Atlas of 101 Common Skin Diseases

Lymphomas (Other Than Mycosis Fungoides and Lymphomatoid Papulosis)

Malignant neoplasms of B-lymphocytes especially that present themselves usually as papules, nodules, and tumors, sometimes solitary but at other times numerous, and often in clusters on any anatomic site. When “primary,” B-cell lymphomas…

A Clinical Atlas of 101 Common Skin Diseases

Mycosis Fungoides

A systemic lymphoma of T-lymphocytes that manifests itself first in the skin as macules and then patches that often are scaly. Most people with the disease have only scaly macules and patches for a lifetime, but some patients may develop papules,…

A Clinical Atlas of 101 Common Skin Diseases

Lymphomatoid Papulosis

…e disease process was first published more than a decade earlier by Dupont and colleagues under the moniker “histiomonocytic reticulosis.” LyP is a rare primary cutaneous CD30+ lymphoproliferative disorder of unknown etiology, estimated to affect…

Differential Diagnosis in Dermatopathology

Discussions

…hat malignant neoplasm of melanocytes, especially those situated on the trunk and extremities, are characterized by abnormal pagetoid melanocytes distributed in pagetoid pattern in the epidermis and adnexal epithelia. Distinction between them is…

Nail matrix melanoma: consecutive cases in a general practice

Nail matrix melanoma: consecutive cases in a general practice

…eport stated, “Three of the immunoperoxidase stains (S100, panmelanoma and HMB45) show an increase in melanocytes with Pagetoid spread and some plump cells. These changes are those of an evolving level 1 (in-situ) acral melanoma. The Melan A…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cytophagic Panniculitis?

…ll lymphoma. It is not an inflammatory process, but a malignant neoplastic one. Discussion We consider histiocytic medullary reticulosis and cytophagic panniculitis to be different names for the same lymphoma. The term histiocytic medullary…

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