Search Results for: neoplasms

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

-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…

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…

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…

Differential Diagnosis in Dermatopathology

Discussions

…ly vascular and edematous stroma. Despite the many changes histopathologic that apocrine and eccrine hidradenomas share, the neoplasms of wholly different nature can be distinguished from one another at a glance with scanning magnification by virtue…

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…

Differential Diagnosis in Dermatopathology

Discussions

…nd, they have in common. Apocrine mixed tumors and eccrine mixed tumors share numerous findings that are possessed by benign neoplasms in general: vertical orientation often, sharp circumscription, smooth border, compression of enveloping connective…

Metastatic papillary thyroid carcinoma to the nose mimicking basal cell carcinoma: report and review of cutaneous metastases of papillary thyroid cancer

Metastatic papillary thyroid carcinoma to the nose mimicking basal cell carcinoma: report and review of cutaneous metastases of papillary thyroid cancer

…hat since “…the natural history of thyroid cancer is one of slow progression skin metastases may be confused with other skin neoplasms such as basal cell carcinoma…” [5] Indeed, their patient—a 70-year-old man—presented with a enlarged thyroid gland…