Search Results for: isthmic-catagen cyst

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…mere supposition. 10.3.8A: Section of a biopsy specimen from a scalp, all follicles being in the same stage of devolution in catagen + 10.3.8B: Follicle in catagen and numerous melanophages in a fibrous track behind the follicle = Alopecia areata…

Differential Diagnosis in Dermatopathology

Discussions

…normal epithelial structure of skin that the lining of the cyst resembles most closely, e.g., infundibular cyst and isthmus-catagen cyst. Conventionally, cysts of the infundibular type have been termed epidermoid or epidermal cysts, epidermal…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…13. No sebaceous lobules in the lining of the cyst 13. Sebaceous lobules and individual sebocytes often in the lining of the cyst 14. Cyst surrounded often by altered connective tissue, e.g., numerous adipocytes intersected by fibrous septa, an…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Anagen Effluvium?

…gen hair that is formed in the process is shed approximately three months after the event that incited the follicle to enter catagen; when anagen begins anew, a new hair begins to be formed again. Telogen effluvium can be regarded as an…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Infundibular cyst Isthmus-catagen cyst 1. Cyst lining consists of stratified squamous epithelium that resembles normal infundibular epidermis, i.e., the cells flatten as they mature; the granular zone persists 1. Cyst lining consists of stratified…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Telogen Effluvium—An Inflammatory Disease?

…ical knock-out is to an authentic knock-out in boxing. In telogen effluvium, the follicle is “knocked cold” into catagen and subsequently into telogen; in anagen effluvium, the follicle is sufficiently debilitated that it cannot continue…