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A solid circumscribed elevation of the skin varying from less than 0.1 to 1 centimeter in diameter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a nodular elevation of the skin; an element of a skin rash. Papules accompany certain diseases of the skin and mucous membranes. They occur in different sizes, colors, and consistencies; in shape they may be conical, hemispheric, or flat. Inflammatory papules indicate the presence in the skin of an infiltrate, as in syphilis. An example of noninflammatory papules is the thickening of the epidermis in warts.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Amongst these are relatively rare entities such as bowenoid papulosis, epidermolytic acanthoma, and verruciform xanthoma, which are underrecognized by surgical pathologists.
The rationale for classifying lymphomatoid papulosis as a cutaneous lymphoma is its association with other malignant lymphoproliferative disorders; however, some experts hesitate to classify this chronic skin disease as a true malignancy because of its spontaneous resolution and benign clinical course.
Giam, "A case report of clear cell papulosis and a review of the literature," Annuals of the Academy of Medicine, Singapore, vol.
Koh, "Is it lymphoma or lymphomatoid papulosis?" Journal of the American Academy of Dermatology, vol.
The primary cutaneous CD30+ lymphoproliferative disorders include Anaplastic large T cell lymphoma/null-cell primary cutaneous type ALCL, lymphomatoid papulosis (LyP), and borderline cases of the EORTC classification with overlapping features of the other two conditions.5,10 The large atypical lymphoid cells express CD30, which is a 120 kd transmembrane cytokine receptor of the TNF receptor family being preferentially expressed by activated lymphoid cells.
Lymphomatoid papulosis lesions appear as small self-healing papules, with a necrotic center that often appears in clusters and recurs in the same region of the body.
These histologic changes were most consistent with lymphomatoid papulosis.
revealed that the number of Ki-67 positive cells within the dermis was significantly higher in stage IIB-IV MF (22.3%) and lymphomatoid papulosis (26.3%) than stage I-IIA MF (4.3%) and parapsoriasis (6%).
** Understand the characteristic clinical, morphologic, immunophenotypic, cytochemical, and cytogenetic/ molecular features of acute myeloid leukemia, acute lymphoid leukemia, myelodysplastic syndromes, paroxysmal nocturnal hemoglobinemia, multiple myeloma, monoclonal gammopathy of undetermined significance, non-Hodgkin and Hodgkin lymphoma, neuroblastoma, chronic lymphoproliferative disorders, lymphomatoid granulomatosis, posttransplant lymphoproliferative disorder, polymorphic and lymphomatoid papulosis, and histiocytic disorders.
Conditions resulting in inflammatory hemorrhage include leukocytoclastic or necrotizing vasculitis, although a few nonvasculitic conditions can be associated with palpable purpura and include chronic pigmented purpura, pityriasis lichenoides et varioliformis acuta (PLEVA), lymphomatoid papulosis, and erythema multiforme.
Otra inusual presentacion clinica en la poblacion VIH infectada es la papulosis bowenoide, caracterizada por multiples papulas planas, hiperpigmentadas e hiperqueratosicas de curso cronico en el dorso del pene.