Search Results for: neoplasms

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

-oid?

…lies to Spitz nevus remains elusive. The term “epithelioid sarcoma” verges on oxymoron. Carcinomas are malignant neoplasms of epithelial cells; sarcomas are malignant neoplasms of nonepithelial cells. The sarcoma that Enzinger designated…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Precursor Lesions of Melanoma?

…nevi), and acral and mucosal lentiginous melanocytic proliferations have in common? Apart from the fact that all of them are neoplasms composed of melanocytes, they have nothing in common! Lentigo maligna is a synonym for a flat lesion of melanoma…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Metastasizing Dermatofibroma?

…broma: a report of two cases. Am J Surg Pathol 1996;20:1361–67. “Low-grade (and in some cases benign) mesenchymal neoplasms of the skin may metastasize to the lung, sometimes many years after the excision of the primary lesion.”…

Differential Diagnosis in Dermatopathology

Granular-cell tumor vs. Xanthoma

A hamartoma of epidermis, epithelial structures of adnexa, and presumably dermal elements, typified, when fully formed, by a papillated or verrucous yellowish plaque situated usually on the scalp. The condition may present itself as a solitary…

The mythical concept and untoward consequences of a diagnosis of dysplastic nevus: an overdue tribute to A. Bernard Ackerman, MD

The mythical concept and untoward consequences of a diagnosis of dysplastic nevus: an overdue tribute to A. Bernard Ackerman, MD

…ceptual 1996;2(1). 9. Farmer ER, Gonin R, Hanna MP. Discordance in the histopathologic diagnosis of melanoma and melanocytic neoplasms betweem expert pathologists. Hum Pathol 1996;27(6):528-31. 10. Hurt MA, Milette F. Correspondence: A letter to the…

Papillary adenocarcinoma in situ of the skin: report of four cases

Papillary adenocarcinoma in situ of the skin: report of four cases

…ermatologica. 1991;182:47-51. 33. Denianke K, Ackerman AB, The issue of eccrine versus apocrine differentiation of cutaneous neoplasms affiliated with tubules, Dermatopatholology: Practical & Conceptual. 2003;9(4). 34. Crowson AN, Magro CM, Mihm…

When all you have is a dermatoscope—start looking at the nails

When all you have is a dermatoscope—start looking at the nails

…; first published in Der Hautarzt, 2014, 65(4):301-11.) Onychopapilloma and subungual viral wart Onychopapilloma is a benign neoplasms, that originates from the distal nail matrix and/or the nail bed [11,12]. It typically presents with longitudinal…

Review of The Pigmentary System: Physiology and Pathophysiology (2nd ed) by James J. Nordlund, Raymond E. Boissy, Vincent J. Hearing, et al.

Review of The Pigmentary System: Physiology and Pathophysiology (2nd ed) by James J. Nordlund, Raymond E. Boissy, Vincent J. Hearing, et al.

…f a pathologist, the weakest part of the book. The section is divided in two parts devoted respectively to frequent and rare neoplasms. The designation “rare” should probably be replaced by “controversial,” as at least some entities discussed in…