Lichen amyloidosus. Electron microscopic study of a typical case and a review

Secondary localized cutaneous amyloidosis in solar elastosis

“…In the present case, histochemically identifiable amyloid was associated with the elastotic changes. This histochemical amyloid fulfilled the ultrastructural criteria proposed for the identification of cutaneous (Hashimoto & Yoong, 1971;Kumakiri & Hashimoto, 1979) and systemic amyloid (Shirahama & Cohen, 1967). The tubular structure of amyloid seen in the present case corresponded to the tubular filaments (Kumakiri & Hashimoto, 1979) in lichen amyloidosus and T.Tsujij Y.…”

Multicentric Amyloid Containing Cutaneous Trabecular Carcinoma

“…The same disease was utilized by Black et al (1971Black et al ( , 1972Black et al ( , 1976 demonstrated the importance of epidermis in this disorder. Many investigators also observed that the cytoplasm of superficial dermal fibroblasts frequently contains filaments similar to those of amyloid fibrils in the cases of primary cutaneous amyloidosis (Hashimoto et al 1965, Ebner 1968, Rodermund & Klingmiiller 1970, Shapiro et al 1970, Hashimoto & Onn 1971, Hashimoto & Brownstein 1972. Because of the intracellular location of amyloid-like filaments, the fibroblast is considered to be the amyloid-producing cell by these authors.…”

New Histochemical and Ultrastructural Findings in Three Cases of ‘Papillomatose Papuleuse Confluente et Réticulée (Gougerot-Carteaud)’

“…Therefore, a distinct and clear demarcation of PCR towards the polar primary localized cutaneous amyloidoses on the ultrastructural level is not possible [Brownstein and Hashimoto. 1972, Hashimoto and Onn, 1971Sigg et al. 1982], Besides the clinically defined polar expression of primary localized skin amyloidoses, 'biphasic' or 'link' forms are described [Bedi andDatta, 1979, Brownstein et al, 1973;Piampnongsant and Kullavanaijaya.…”