Search Results for: metastatic squamous-cell carcinoma

Histologic Diagnosis of Inflammatory Skin Diseases

Dermatofibroma

…osebaceous units, some of them differentiated fully Induction of many follicular germlike structures that may simulate basal-cell carcinoma Induction of true basal cellcarcinoma rarely Differential diagnosis histopathologic Dermatofibrosarcoma…

Differential Diagnosis in Dermatopathology

Discussions

…the outset of this chapter are predicated on differentiation between small nodular variants of both trichoblastoma and basal-cell carcinoma as judged in sections of specimens that have been removed by punch technique and processed in conventional…

The dermatologist’s stethoscope-traditional and new applications of dermoscopy

The dermatologist’s stethoscope-traditional and new applications of dermoscopy

…basal cell carcinoma showing loosely arranged gray globules and focused branching, arborizing vessels. (C) Invasive squamous cell carcinoma showing a white-pink background intermingled with white circles (targetoid appearing follicular openings…

Confusion—specimen mix-up in dermatopathology and measures to prevent and detect it

Confusion—specimen mix-up in dermatopathology and measures to prevent and detect it

…egression of a neoplasm following biopsy of it is a common phenomenon not only in basal-cell carcinoma, but also in squamouscell carcinomas and melanocytic neoplasms [13-15]. Therefore, failure to find remnants of a biopsy-proven neoplasm, coupled…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Halo Phenomenon?

…immune response to melanoma. Although no direct demonstration of melanocyte killing has been observed by the immune effector cells found within the halo, the abundance of antigen-presenting cells in the regressing nevus and the presence of T…

Time to reconsider Spitzoid neoplasms?

Time to reconsider Spitzoid neoplasms?

…bstract” target=”_blank”>PubMed 32. Smith KJ, Barrett TL, Skelton HG III, Lupton GP, Graham JH. Spindle cell and epithelioid cell nevi with atypia and metastasis (malignant Spitz nevus). Am J Surg Pathol 1989; 13(11):931-9….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Blue Nevus?

…s of DPN. DPN continued shares some clinical and histologic features with those of blue nevus (BN), cellular BN, and spindle cell and epithelioid cell nevus (SEN). However, when a large number of cases of DPN are examined, they are remarkably…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus-like keratosis

…lity, as well as telangiectases. Miscue clinical as clue to diagnosis histopathologic What is thought to be a solitary basal-cell carcinoma on a chest or shoulder of an older individual covered with solar lentigines may be a clue to lichen…