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A Clinical Atlas of 101 Common Skin Diseases

Folliculitis (Infundibulitis) and Pseudofolliculitis (Pseudoinfundibulitis)

Infundibulitis, usually a suppurative inflammatory process that involves infundibula, is either noninfectious, as in the case of pustules of acne vulgaris, or infectious, as in the case of pustules caused by Staphylococcus aureus. In contrast, pseud…

Therapeutic Strategies in Dermatology

Balanitis: Overview

Overview Balanitis is a nonspecific term meaning inflammation of the glans penis. It is most commonly multifactorial in etiology, restricted to the uncircumcised, and presents as a mildly symptomatic scaly, red macule or patch. Acute suppurative bal…

A Clinical Atlas of 101 Common Skin Diseases

Dermatophytosis

An inflammatory process caused by superficial fungi, i.e., fungi situated superficially in the cornified layer and in other cornified structures, and expressed clinically as smooth-surfaced papules, scaly papules, scaly plaques, nodules, pustules, v…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

…hat is designated, universally, folliculitis is, in actuality, infundibulitis. In short, infundibulitis is NOT a synonym for folliculitis; the former, for purposes practical, is a suppurative process centered in infundibular epidermis, whereas the la…

Histologic Diagnosis of Inflammatory Skin Diseases

Infundibulitis secondary to medications systemic

Infundibulitis secondary to medications systemic Comment Findings histopathologic in infundibulitis secondary to medications administered systemically are no different from those in suppurative infundibulitis of any noninfectious cause, with the exc…

Histologic Diagnosis of Inflammatory Skin Diseases

Infundibulitis secondary to agents topical

Infundibulitis secondary to agents topical Comment Noninfectious infundibulitides can be divided roughly into those of cause internal and those of cause external. Examples of internal causes of suppurative infundibulitis are drugs of different kinds…

A Clinical Atlas of 101 Common Skin Diseases

Pyoderma Gangrenosum

An inflammatory process that often begins as a suppurative folliculitis manifested clinically as pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel…

Histologic Diagnosis of Inflammatory Skin Diseases

"Folliculitis" (Infundibulitis)

An inflammatory process that often begins as a suppurative folliculitis manifested clinically as pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel…

A Clinical Atlas of 101 Common Skin Diseases

Atypical Mycobacterial Infections

Infection of skin and subcutaneous tissue by atypical mycobacteria, that is, mycobacteria other than those responsible for tuberculosis and leprosy, expressed clinically as keratotic and crusted papules, plaques, nodules, and tumors that may be punc…

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