Search Results for: muscles

Histologic Diagnosis of Inflammatory Skin Diseases

Lipodystrophy

…ed number and size of lobules in the subcutaneous fat, the patient has a wasted appearance. Secondary to severe loss of fat, muscles may appear to be hypertrophic and veins may seem to be prominent. Differential diagnosis histopathologic Localized…

Histologic Diagnosis of Inflammatory Skin Diseases

Blood Vessels

…al structures of adnexa (folliculosebaceous-apocrine units and eccrine units) and nonepithelial structures of adnexa (smooth muscles, nerves, and medium-sized and larger blood vessels). Figure 1.72 The dermal vasculature consists of a network of two…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Origin of Adnexal Neoplasms?

…e the origin of adnexal neoplasms, i.e., whether they derive from follicles, sebaceous units, apocrine units, eccrine units, muscles, nerves, or vessels (blood or lymphatic); only the direction of differentiation can be inferred. On the basis of…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…dnexa are folliculo-sebaceous-apocrine units on one hand and eccrine units on the other; the nonepithelial adnexa are smooth muscles, nerves, and blood vessels. Each of those normal adnexal structures has its own distinctive histologic attributes…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Psychocutaneous Disorders?

…mmy palms) of fear? And who has not developed “goose pimples” as a consequence of the involuntary pull of smooth muscles on hair follicles in response to powerful emotions? Skin contains nerves that are integral to the peripheral nervous…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Dermal Papilla?

…he base of an isthmus at the outset of anagen. Bulges are unaccompanied by a follicular papilla; they are attached to smooth muscles. In summary, studies histologic of normal human follicles led us to conclude that the bulge is a structure very…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eruptive Vellus Hair Cyst?

…ds and ducts, are affiliated with the cyst. Episodically, a nonepithelial component appears in the hamartoma, namely, smooth muscles of hair erection. What has been named “eruptive vellus hair cyst” has all of the constituents of classic…

On the nature of thought processes and their relationship to the accumulation of knowledge, Part XV-Limits to cognition: epistemic, random, or both?

On the nature of thought processes and their relationship to the accumulation of knowledge, Part XV-Limits to cognition: epistemic, random, or both?

…s. Visual saccades (the quick component of eye movements) are controlled by a number of neural circuits that control the six muscles within the orbit that move the eye so that gaze can be stabilized and aligned to compensate for the animal’s…