Search Results for: karyorrhexis

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…chromatin as a consequence of the hydrolytic action of DNAses of lysosomes. Figure 3.21 A. Normal nucleus. B. Karyolysis. C. Karyorrhexis. D. Pyknosis. KARYORRHEXIS [Gk. karyon (nut) + rhegsis (to burst)]: Dot-like debris of nuclei, known also as…

Histologic Diagnosis of Inflammatory Skin Diseases

Algorithms Predicated on “Nonspecific” Findings

…reticular dermis nor edema in the papillary dermis = Erythema figuratum     Lymphocytic Nuclear “Dust” Karyorrhexis of lymphocytes in infiltrates in the dermis and/or subcutaneous fat. Better termed nuclear “dust”…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Apoptosis?

…, and karyolysis (ghosts of nuclei). So-called apoptotic cells show two of the three signs of necrosis, namely, pyknosis and karyorrhexis. Moreover, the cytoplasm of apoptotic cells is eosinophilic, just as is that of necrotic cells. What, then,…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…sis. Reason: In classic Virchowian pathology, necrosis is characterized cytopathologically by three signs, namely, pyknosis, karyorrhexis, and karyolysis; apoptosis is typified by pyknosis and karyorrhexis, and, therefore, logic compels that it…

Histologic Diagnosis of Inflammatory Skin Diseases

Confusing Terms (to be Avoided Scrupulously)

…llicle to shrivel and, in time, to reach the resting stage (telogen). The keratocytes so affected show signs of pyknosis and karyorrhexis, evidence of necrosis. An example of apoptosis, as it is purported to occur histopathologically, is Civatte…