Cutaneous manifestations of Wegener granulomatosis

In a series of 19 patients (15 male and 4 female) who had Wegener granulomatosis with specific cutaneous histopathologic findings, the skin was only involved at onset in two. Four distinct histologic subgroups were defined as follows: necrotizing vasculitis (11 patients); necrotizing palisading granuloma (Churg-Strauss lesion) 2 patients); granulomatous vasculitis (2 patients); and lymphomatoid granulomatosis (4 patients). The 11 patients with necrotizing vasculitis had purpuric and hemorrhagic lesions, and the presence of vesicles and ulceration correlated with the severity of onset and extent of disease. The remaining eight patients had papular and nodular lesions. The patients with necrotizing vasculitis and lymphomatoid granulomatosis had a worse prognosis that did those with a predominant granulomatous reaction.

On the nature of desmoplastic melanoma

Pathologic study demonstrated lentigo maligna melanoma in three of four cases of desmoplastic melanoma and demonstrated spindle cell masses with features of atypical fibroxanthoma in all four of the cases. Pigment enzymes of melanosomes were not found in the mesenchymal portion of the tumor. The cellular atypia and the histochemical and ultrastructural findings favor the fibroblastic nature of this melanoma-related dermal mass.

Studies on the Mature and Immature Lymphoid Cells of the Peripheral Blood of Normal Rats and Rats Infected with Trypanosoma Brucei

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Studies on the Mature and Immature Lymphoid Cells of Spleen, Lymph Nodes and Thymus of Normal Rats and Rats Infected with Trypanosoma Brucei

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Neuro-Epithelioma (Glioma) of Retina with Metastases

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Congenital Malformation of Heart with Anomalous Insertion of Pulmonary Veins, Absence of Spleen, Situs Inversus of Abdominal Viscera and Other Developmental Errors: Report of a Case

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