Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eccrine Neoplasms?

…ts 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 that serve as the basis for formulation of criteria for identification of a…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…affect the subcutaneous fat 11. Granular cells in cutaneous nerves 11. No foam cells in cutaneous nerves 12. Little fibrosis 12. Marked fibrosis at times 13. No extracellular lipid 13. Extracellular lipid nearly invariable in “eruptive&#8…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

An inflammatory disease caused by Mycobacterium leprae. It can involve internal organs or be localized to the skin, where its clinical presentation is dependent on the immunologic status of the host. Persons who are competent immunologically have pa…

Histologic Diagnosis of Inflammatory Skin Diseases

Suggested Readings

…of hair erection. Dermatopathol Pract Concept 1995;1:229-233. Nerves Johnson KO. The roles and functions of cutaneous mechanoreceptors. Curr Opin Neurobiol 2001;11:455-461. Johnson KO, Yoshioka T, Vega-Bermudez F. Tactile functions of mechanorecepti…

Dermatology Practical & Conceptual

Spitz and Reed nevi: acquired or congenital?

…subcutis and involvement of cutaneous appendages, vessels or nerves. As a common finding, melanocytes splay between collagen bundles singly or in double rows [4,10,11]. Recently, the presence of largish melanocytic nests has been identified as a fur…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Origin of Adnexal Neoplasms?

…les, 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 study of findings histopathologic, the origin of adnexal neoplasms, such as…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Psychocutaneous Disorders?

…air follicles in response to powerful emotions? Skin contains nerves that are integral to the peripheral nervous system. As long as mortals think and feel, the effects of those thoughts and feelings will be communicated to the skin. It is not surpris…