Search Results for: cysts

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Differential Diagnosis in Dermatopathology

Discussions

…mostly of cells of the isthmic part of a hair follicle. The infundibular rete ridges of dilated pore are devoid of ducts or cysts, whereas the lobules of pilar sheath acanthoma usually contain structures like sebaceous ducts and cysts that house…

Histologic Diagnosis of Inflammatory Skin Diseases

Phaeohyphomycosis

…es caused by bacteria usually are accompanied by redness, tenderness, and fever. Abscesses caused by rupture of infundibular cysts are associated with signs of inflammation, but no symptoms systemic. Findings histopathologic Fully developed…

Reflectance confocal microscopy: a useful and non-invasive tool in the in vivo differentiation of benign pigmented skin lesions from malignant melanoma. Report of a case

Reflectance confocal microscopy: a useful and non-invasive tool in the in vivo differentiation of benign pigmented skin lesions from malignant melanoma. Report of a case

…pigment network in dermoscopy. Histology showed epidermal hyperplasia characterized by thin strands of basaloid cells, horn cysts and basal hyperpigmentation without increase of melanocytes. In the superficial dermis, a few melanophages and solar…

Histologic Diagnosis of Inflammatory Skin Diseases

Collagen

…puration and subsequent degeneration of collagen, such as ruptured epidermal (infundibular) and follicular (isthmus-catagen) cysts, deep fungal infections and atypical mycobacterial infections, and pyoderma gangrenosum; and those typified by…

Histologic Diagnosis of Inflammatory Skin Diseases

Porphyria cutanea tarda

…throcytes sometimes extravasated in the blister Late Fibrosis in the upper part of the dermis Milia, i.e., tiny infundibular cysts, in some lesions Re-epithelialization of epidermis beneath a subepidermal blister Correlation clinicopathologic The…

Differential Diagnosis in Dermatopathology

Discussions

…astic spinous cells are collections of trichoblasts that simulate follicular germs. In early lesions, no infundibular “cysts” are present in the basal-cell carcinoma; fully-developed lesions, however, are marked by numerous tiny…

A pigmented flat lesion on the leg of a 72-year-old man

A pigmented flat lesion on the leg of a 72-year-old man

…ther in the same lesion [3]. Common dermoscopic features of SK include fissures and ridges, comedo-like openings, milia-like cysts and sharply demarcated borders [4,5]. Clonal SK is considered a rare variant characterized by proliferation of…

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