A Clinical Atlas of 101 Common Skin Diseases

Pyogenic Granuloma

A red, often ulcerated, boggy papule that represents a hyperplasia of small cutaneous vessels which are “fed” by an arteriole in the subcutaneous fat, the lesion resulting consistently from external trauma, usually in the form of a punct…

A Clinical Atlas of 101 Common Skin Diseases

Melanocytic Nevi and Melanotic Macules

Hamartomas (“congenital” melanocytic nevi) and benign neoplasms (“acquired” melanocytic nevi) of various specific types, all of which are composed of abnormal melanocytes and manifested clinically as lesions of different colo…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Langerhans’ Cell Granulomatosis?

“The cells of histiocytosis X [HX] have been designated “histiocytes” but the “ordinary” histiocytes encountered in healthy skin, in histiocytoma or various granulomatous processes are devoid of the granules. It could…

Dermatology Practical & Conceptual

Balloon cell melanoma in primary care practice: a case report

Abstract A case of balloon cell melanoma encountered in a primary care skin cancer practice in Melbourne, Australia is presented. The presenting lesion was 6 mm in diameter, ulcerated, non-pigmented and without any algorithmic clues to melanoma. How…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Cutaneous T-cell Lymphoma?

…s fungoides’ and replace it with peripheral cutaneous T-cell lymphoma (CTCL).” Santa Cruz DJ, Hurt MA. Neoplasms of the skin. In: Sternberg SS, ed. Diagnostic Surgical Pathology. 2nd ed. New York, NY: Raven Press, 1994:94. Cutaneous T-c…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Basal-Cell Carcinoma Common in Nevus Sebaceus?

…nerally occur in adulthood. The most common of these is basal cell carcinoma, which develops in 5% to 7% of the lesions.” Murphy GF, Elder DE. Benign tumors with pilosebaceous differentiation. In: Atlas of tumor pathology: non-melanocytic tumor…

Dermatology Practical & Conceptual

The dermatoscopic universe of basal cell carcinoma

…the first descriptions of the dermatoscopic pattern of basal cell carcinoma (BCC) that go back to the very early years of dermatoscopy, the list of dermatoscopic criteria associated with BCC has been several times updated and renewed. Up to date, de…

Histologic Diagnosis of Inflammatory Skin Diseases

Adult T-cell leukemia/Lymphoma

Adult T-cell leukemia/Lymphoma Presentation stereotypical Age and sex No predilection for sex. Middle-aged individuals from southern Japan and Caribbean Islands. Distribution of lesions Widespread Arrangement Scattered discrete lesions Individual le…