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

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…

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

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…

Histologic Diagnosis of Inflammatory Skin Diseases

Parasitic infestations

…carial dermatitis and creeping eruption: Abscesses of common kinds, e.g., secondary to rupture of infundibular or follicular cysts, do not exhibit parasites in their midst. Clue to specific diagnosis histopathologic “Flame figures” is a…

Differential Diagnosis in Dermatopathology

Metastatic carcinoma from a breast vs. Morpheiform basal-cell carcinoma

…aceous units, especially infundibula, that may manifest itself solely as noninflammatory lesions, i.e., comedones and intact cysts, or as inflammatory lesions, i.e., papules, nodules, and pustules. The process may resolve without residua or with…

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