Search Results for: infundibuloapocrine-sebaceous-follicular unit

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Inverted Follicular Keratosis, Tricholemmoma, and Desmoplastic Tricholemmoma?

…ogists, not dermatologists, generated the notions of inverted follicular keratosis (Elson B. Helwig) tricholemmoma (John T. Headington), and desmoplastic tricholemmoma (Daniel Santa Cruz) as distinctive cutaneous neoplasms. We aver that those three c…

Differential Diagnosis in Dermatopathology

Sebaceous hyperplasia vs. Nevus sebaceus of Jadassohn

Loss of hair attributable either to the effects of inflammatory cells on follicles or to physiological or mechanical factors in which inflammatory cells play no role. Although the scalp is the site most often affected, any region of the skin that be…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Occlusion Triad?

…a] is similar to that of hidradenitis suppurativa except that follicular occlusion causes rupture of sebaceous glands, whereas hidradenitis affects the apocrine glands.” Chicarilli ZN. Follicular occlusion triad. Ann Plastic Surg 1987;18:230&#8…

Differential Diagnosis in Dermatopathology

Infundibulo-folliculo-sebaceous cystic hamartoma vs. Steatocystoma

Loss of hair attributable either to the effects of inflammatory cells on follicles or to physiological or mechanical factors in which inflammatory cells play no role. Although the scalp is the site most often affected, any region of the skin that be…

Dermatology Practical & Conceptual

Linear sebaceous hyperplasia on the chest

…mination of the biopsied lesions established the diagnosis of sebaceous hyperplasia (SH) (Figure 1D). Based on the clinical, dermoscopic and histopathological findings, the final diagnosis was linear SH on the chest. Figure 1. Case 1. (A) A group of…

Differential Diagnosis in Dermatopathology

Lymphocytoma cutis with lymphoid follicles vs. Follicular-cell lymphoma

Loss of hair attributable either to the effects of inflammatory cells on follicles or to physiological or mechanical factors in which inflammatory cells play no role. Although the scalp is the site most often affected, any region of the skin that be…

A Clinical Atlas of 101 Common Skin Diseases

Lichen Planus

…lammatory process consisting usually of violaceous papules that have a polygonal outline and flat top, and that tends to favor flexural surfaces of skin and the buccal mucosa of the oral cavity. It sometimes affects follicles and nail units as well….

A Clinical Atlas of 101 Common Skin Diseases

Acne Vulgaris

A disease of infundibulosebaceous 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…

A Clinical Atlas of 101 Common Skin Diseases

Basal Cell Carcinoma

…erminative cells analogous to those that compose the folliculosebaceous-apocrine germ in an embryo and that usually manifests clinically as a papule or nodule which may become ulcerated. On the basis of clinico-pathologic correlation, five distinctiv…