Results 11 to 20 of about 187 (123)

Subepidermal Calcified Nodule in a Child With Neurofibromatosis Type 1. [PDF]

open access: yesCureus, 2022
Calcinosis cutis (CC) is characterized by calcium deposition in the subcutaneous tissues. Subepidermal calcified nodule (SCN) is a variant of idiopathic calcinosis most commonly seen in the head and neck region of children and adolescents as a single, small, painless, yellow-white papule.
Bagci B, Karakas C, Gokden M.
europepmc   +3 more sources

A Case of a Subepidermal Calcified Nodule on the Sole without Trauma. [PDF]

open access: yesAnn Dermatol, 2011
Subepidermal calcified nodule is an uncommon form of calcinosis cutis, which most commonly occurs in children. It usually presents as an asymptomatic, solitary verrucous nodule on the head and neck region, but occasionally as multiple lesions. Serum calcium and phosphorus levels are usually normal.
Ahn IS   +6 more
europepmc   +4 more sources

Subepidermal calcified nodule.

open access: yesNishi Nihon Hifuka, 1991
Subepidermal calcified noduleの1例を報告した。患者は11歳女子で, 初診の約3ヵ月前に, 右上眼瞼内側部に自覚症状を欠く丘疹があるのに気付いた。肉眼的に, 皮疹は直径4mm, 表面灰白色で頂上部が疣状の小結節であつた。病理組織学的に, 表皮直下に好塩基性を呈する不規則な塊状物および顆粒状の物質が認められ, これらはコッサ染色にて陽性を示した。さらに, 石灰沈着部では, 弾性線維は認められず, 弾性線維の変性, 崩壊がカルシウムの沈着に関与しているものと思われた。
Haruhisa KATO, Shuichi KUNIYUKI
openaire   +2 more sources

Epidermoid cyst as differential diagnosis for spherical keratoma: What do we know?

open access: yesEquine Veterinary Education, Volume 38, Issue 9, Page 489-508, September 2026.
Summary This article briefly presents the case of a space‐occupying coronary band mass that raised the question of how one can differentiate between two uncommonly seen but now commonly paired differential diagnoses and prompted a review of the relevant literature.
R. Goodman‐Davis   +2 more
wiley   +1 more source

Contrasting Embryogenic Trajectories Reveal Spatial Control as a Key Determinant of Embryogenic Competence in Theobroma cacao L.

open access: yesPhysiologia Plantarum, Volume 178, Issue 5, September/October 2026.
ABSTRACT Somatic embryogenesis (SE) in Theobroma cacao is a micropropagation technique of great importance but remains constrained by genotype recalcitrance. The cellular and molecular mechanisms distinguishing regenerative from non‐regenerative responses remain poorly understood.
Stefhania Alzate‐Lozano   +4 more
wiley   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Calcium Hydroxylapatite‐Carboxymethylcellulose as a Treatment for Forearm Dermatoporosis: A Prospective, Delayed‐Start, Contralateral Case Series

open access: yesJournal of Cosmetic Dermatology, Volume 25, Issue 4, April 2026.
ABSTRACT Background Dermatoporosis is a chronic cutaneous fragility syndrome marked by dermal thinning, collagen loss, and recurrent purpuric lesions. Effective treatments remain limited. Calcium hydroxylapatite–carboxymethylcellulose (CaHA–CMC) is a regenerative biostimulator with demonstrated skin extracellular matrix–restorative effects, but its ...
Ada Regina Trindade de Almeida   +3 more
wiley   +1 more source

Global Recommendations for Facial Rejuvenation Using a Hyaluronic Acid and Calcium Hydroxyapatite Hybrid Injectable

open access: yesJournal of Cosmetic Dermatology, Volume 25, Issue 1, January 2026.
ABSTRACT Background The hybrid injectable HA‐CaHA contains a formulated matrix of crosslinked hyaluronic acid (HA) gel with embedded calcium hydroxyapatite (CaHA) microspheres to increase skin elasticity and hydration as well as promote neocollagenesis, respectively. Clinical practice recommendations for use of HA‐CaHA are limited.
Maurizio Cavallini   +8 more
wiley   +1 more source

Subepidermal calcified nodule.

open access: yesThe West Indian medical journal, 2003
Subepidermal calcified nodules are rarely seen and are classified under idiopathic subepidermal calcifications. They commonly affect children. It is most frequently encountered in the face, and it is less common in the extremities. Here, we present a case where the lesion was localized on the knees of a 23-year-old female patient.
Alper, Murat   +2 more
openaire   +3 more sources

Pilomatrix Carcinoma Arising From a Previously Excised Giant Pilomatrixoma: A Case Report

open access: yesCase Reports in Orthopedics, Volume 2026, Issue 1, 2026.
A 49‐year‐old male presented with a giant pilomatrixoma in the arm that underwent malignant transformation into pilomatrix carcinoma. The patient originally presented with a malaise and back pain. Workup revealed anemia and hypocalcemia from chronic tumor drainage, and a 20‐cm giant pilomatrixoma with fungation, requiring wide resection.
Robert Wood   +3 more
wiley   +1 more source

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