Search Results for: folliculo-apocrine cystic hamartoma

Histologic Diagnosis of Inflammatory Skin Diseases

Nerves

…upplied by the autonomic nervous system. Adrenergic fibers activate arterioles, glomus bodies, muscles of hair erection, and apocrine glands; cholinergic fibers stimulate eccrine glands. Cutaneous sensory receptors can be divided into two groups:…

Differential Diagnosis in Dermatopathology

Discussions

…into the subcutaneous fat. As a consequence of the proliferation of fibrocytes and the accompanying fibroplasia, some normal folliculo-sebaceous units may be destroyed, but eccrine structures tend to be spared. The epidermis above the process…

Differential Diagnosis in Dermatopathology

Discussions

…e porokeratotic, and from linear psoriasis, including the linear lichen planus, and lichen striatus. An epidermal nevus is a hamartoma that, on biopsy, is found to have different characteristics histopathologic that are reflected in differences…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen striatus

…matory linear verrucous epidermal nevus is included here as an “inflammatory disease,” even though it truly is a hamartoma, the reason for that liberty being taken because clinically, and histopathologically, it resembles an inflammatory…

A quiz from Manaus, Brazil

A quiz from Manaus, Brazil

…thosis or basaloid follicular induction [2]. Besides DF, an involutional sclerotic stage of other pre-existing inflammatory, hamartomatous or neoplastic lesion such as angiofibroma, neurofibroma, melanocytic nevus, lipoma, tendon sheath fibroma…

Segmental neurofibromatosis presenting with congenital excessive skin folds

Segmental neurofibromatosis presenting with congenital excessive skin folds

…agnoses of our patient’s cutaneous findings initially included nevus lipomatosus cutaneous superficialis, smooth muscle cell hamartoma, and nevus sebaceous. In addition, plexiform neurofibromas, sometimes present as loose, redundant skin folds…

Histologic Diagnosis of Inflammatory Skin Diseases

Leukocytoclastic vasculitis

…ons in pathology in general, i.e., virtually all are flawed, e.g., definitions of “inflammatory disease,” “hamartoma,” “malformation,” “neoplasm,” and “benign” and “malignant.”…

Differential Diagnosis in Dermatopathology

Discussions

…uch less frequently than do infundibular cysts. An isthmus-catagen cyst is the setting in which a proliferating tricholemmal cystic carcinoma develops rarely. That carcinoma in times past was thought to be wholly benign and therefore was given names…