Histologic Diagnosis of Inflammatory Skin Diseases

Dermatofibroma

Dermatofibroma Synonyms Benign fibrous histiocytoma Fibroma dura Subepidermal nodular sclerosis Histiocytoma Histiocytoma cutis Sclerosing hemangioma Fibroma simplex or fibroma durum Nodulus cutaneus Fibrome en Pastille Dermatofibroma lenticulare De…

Dermatology Practical & Conceptual

Pigmented poroma with unusual location and dermatoscopic features

Abstract Poroma is a benign adnexal neoplasm with “poroid”/ductal differentiation that mimics benign and malignant skin tumors. Histopathology shows circumscribed proliferation of poroid cells intermingled with a variable number of cutic…

Dermatology Practical & Conceptual

Glomangiosarcoma in the shoulder of a 51-year-old man

Abstract Glomangiosarcoma is a very rare type of soft tissue neoplasm. Here we report such a case in the shoulder of a 51-year-old man. Case report A 51-year-old white Hispanic man presented with a pruritic lesion on the back of his left shoulder. H…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Angiolymphoid Hyperplasia with Eosinophilia/Kimura’s Disease?

“The proliferation of connective tissue and fibrosis was marked in the lesions, and was associated with various small round cell infiltrates and eosinophils. . . . Within the lesions, lymphoid follicles were prominent.” Kimura T, Yoshi…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

Error: Abortive is an accurate modifier of particular pathologic processes, e.g., abortive dermatofibroma, abortive morphea, and abortive T-cell lymphoma. Reason: The idea itself is abortive! For example, what is called “abortive T-cell lympho…

Histologic Diagnosis of Inflammatory Skin Diseases

Confusing Terms (to be Avoided Scrupulously)

APOPTOSIS [Gk. apo- (away from) + ptosis (a falling)]: Reputed to be a specific type of cell death in which dead cells are said to undergo fragmentation by implosion with subsequent phagocytosis of nuclear debris (Fig. 3.40). The process is claimed…