Search Results for: infundibulum

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Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Tricho-, pilo-, folliculo- ?

…f it. At an early stage the hamartoma is named fibrofolliculoma; later the same process is called trichodiscoma. Although an infundibulum of epidermis is positioned in the center of each segment of fibrofolliculoma, the condition actually is an…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Perforating Diseases?

…t a folliculitis but an epidermitis, i.e., an infundibulitis, is said to result from extrusion of contents suppurative of an infundibulum into the dermis. When the term was introduced, proponents of it contended that the condition was different from…

Histologic Diagnosis of Inflammatory Skin Diseases

Infundibulofolliculitis, disseminate and recurrent

…s marked by spongiosis, but the focus of spongiosis is positioned at the site where an apocrine duct is presumed to enter an infundibulum plugged by cornified cells. Some lesions exhibit coronoid lamellation in infundibula and foamy histiocytes…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s + 10.94.1B: Lymphocytes and plasma cells around collections of epithelioid histiocytes = Rosacea, papular Spongiosis in an infundibulum is a finding common in rosacea and in analogues of it, to wit, perioral and periocular dermatitis. 10.94.2A:…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Epidermal Cyst and Epidermoid Cyst?

…re related to adnexal epithelium, not epidermis, the exception being an infundibular cyst, a true epidermal cyst because the infundibulum is as much epidermis as is surface epidermis. The epithelium that lines virtually all other cutaneous cysts is…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Common Baldness—an Inflammatory Disease?

…f our specimens [of common baldness] demonstrated a mild to moderate inflammatory infiltrate at the level of the isthmus and infundibulum. This can also be seen in scalp biopsies from normal patients or those with seborrheic dermatitis. We could not…

Frontotemporal hairline recession in a postmenopausal woman

Frontotemporal hairline recession in a postmenopausal woman

….] Figure 3. Perifollicular lamellar fibrosis, loss of sebaceous glands and a lichenoid lymphocytic infiltrate targeting the infundibulum and isthmus (H&E X40). [Copyright: ©2015 Zaouak et al.] Diagnosis Frontal fibrosing alopecia Clinical…

Histologic Diagnosis of Inflammatory Skin Diseases

Keratosis pilaris/Lichen spinulosus

…. The plugs usually are unaccompanied by infiltrates of inflammatory cells, but when a breach has occurred in the wall of an infundibulum, with subsequent leakage or propulsion of contents into the dermis, they become joined by sparse…

Differential Diagnosis in Dermatopathology

Discussions

…ar epidermis. Clinically, dilated pore, as the name denotes, usually presents itself on a face as a widely dilated ostium of infundibulum plugged by horny material. The age of patients with dilated pore ranges from the 20’s to the 80’s,…

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