Search Results for: diffuse neuroendocrine system (anachronistic)

Histologic Diagnosis of Inflammatory Skin Diseases

Scleromyxedema

…tly lambda light chains and occasionally kappa light chains. Differential diagnosis clinical Systemic sclerosis is marked by diffuse hardening of the skin, but not by papules. It often is accompanied by pigmentary changes, calcinosis cutis, and…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…ng of melanocytes mostly in the upper half of the reticular dermis Mark’s nevus Deep congenital nevus characterized by diffuse infiltrates of melanocytes throughout the reticular dermis and in the subcutaneous fat (“giant nevi,”…

A quiz from Manaus, Brazil

A quiz from Manaus, Brazil

…ination of fascicular, storiform and hemangiopericytoma-like vascular patterns in thick hyalinized collagen. Like SF, SFT is diffusely CD34 positive. Subsets of hemangiopericytoma (HP) and SFT are closely related neoplasms (HP/SFT family). HP may…

Differential Diagnosis in Dermatopathology

Granuloma annulare vs. Necrobiosis lipoidica

An inflammatory disease caused by Mycobacterium leprae. It can involve internal organs or be localized to the skin, where its clinical presentation is dependent on the immunologic status of the host. Persons who are competent immunologically have…

Histologic Diagnosis of Inflammatory Skin Diseases

Reticulohistiocytic granuloma

…y binucleate and multinucleate histiocytes Some histiocytes with abnormal nuclei Epidermis thin and separated from the dense diffuse infiltrate by a thin zone of collagen bundles Correlation clinicopathologic Papules and nodules of…

Differential Diagnosis in Dermatopathology

Xanthogranuloma vs. Necrobiotic xanthogranuloma

An inflammatory disease caused by Mycobacterium leprae. It can involve internal organs or be localized to the skin, where its clinical presentation is dependent on the immunologic status of the host. Persons who are competent immunologically have…

Differential Diagnosis in Dermatopathology

Lymphocytoma cutis with lymphoid follicles vs. Follicular-cell lymphoma

An inflammatory disease caused by Mycobacterium leprae. It can involve internal organs or be localized to the skin, where its clinical presentation is dependent on the immunologic status of the host. Persons who are competent immunologically have…