Bizarre Parosteal Osteochondromatous Proliferation (Nora Lesion) in Pediatric Phalanges

2020 ◽  
Author(s):  
Sergio Martínez Álvarez ◽  
Daniel L. Azorín Cuadrillero ◽  
Kevin J. Little
Keyword(s):  
Bizarre Parosteal Osteochondromatous Proliferation

scholarly journals Lesion with blue bone-a case report

2018 ◽  
Vol 8 (1) ◽  
pp. 1323-1325
Author(s):  
Laila Mohamed Ilias ◽  
Babitha Alingal Mohammed ◽  
Roshini PS ◽  
Anupama Ponniah ◽  
Poornima Vijayan
Keyword(s):  
Histopathological Examination ◽  
Fibrous Tissue ◽  
Bone Lesion ◽  
Metacarpal Bone ◽  
Cortical Surface ◽  
Bizarre Parosteal Osteochondromatous Proliferation ◽  
X Ray ◽  
Spindle Cells ◽  
Small Bones ◽  
Hands And Feet

Bizzare parosteal osteochondromatous proliferation, or Nora‘s lesion is a unique bone lesion that most often arises in the small bones of hands and feet.  It is characterised by proliferation of chondroid, bony and fibrous tissue, and is occasionally misdiagnosed as a malignant process.  Our case was a 31 yr old lady, who presented with a painless swelling near the 5th metacarpal bone of right hand.  X-ray showed well marginated mineralised mass arising from the cortical surface of the metacarpal bone.  Histopathological examination revealed bizarre parosteal osteochondromatous proliferation composed of varying amounts of cartilage, bone and spindle cells. Cartilage was hypercellular and chondrocytes were enlarged. Ossification was irregular and had a peculiar blue tinctorial quality. 

Bizarre parosteal osteochondromatous proliferation of bone

1998 ◽  
Vol 27 (3) ◽  
pp. 154-156 ◽  
Author(s):  
S. Bandiera ◽  
P. Bacchini ◽  
F. Bertoni
Keyword(s):  
Bizarre Parosteal Osteochondromatous Proliferation

Bizarre parosteal osteochondromatous proliferation: Rare case affecting distal ulna and review of literature

2021 ◽  
Vol 69 ◽  
pp. 233-237
Author(s):  
Eleby Washington ◽  
Lawrence Menendez ◽  
Alexander Fedenko ◽  
Anderanik Tomasian
Keyword(s):  
Rare Case ◽  
Review Of Literature ◽  
Bizarre Parosteal Osteochondromatous Proliferation ◽  
Distal Ulna

Bizarre parosteal osteochondromatous proliferation with a t(1;17) translocation

2005 ◽  
Vol 447 (1) ◽  
pp. 99-102 ◽  
Author(s):  
Makoto Endo ◽  
Tadashi Hasegawa ◽  
Takashi Tashiro ◽  
Umio Yamaguchi ◽  
Yuki Morimoto ◽  
...  
Keyword(s):  
Bizarre Parosteal Osteochondromatous Proliferation

Bizarre Parosteal Osteochondromatous Proliferation (Nora's Lesion) of the Sesamoid: a Case Report

2000 ◽  
Vol 21 (5) ◽  
pp. 408-412 ◽  
Author(s):  
J.A. Harty ◽  
P. Kelly ◽  
D. Niall ◽  
J.C. O'Keane ◽  
M.M. Stephens
Keyword(s):  
Case Report ◽  
Magnetic Resonance ◽  
Metatarsophalangeal Joint ◽  
Magnetic Resonance Images ◽  
Parosteal Osteosarcoma ◽  
Bizarre Parosteal Osteochondromatous Proliferation ◽  
First Metatarsophalangeal Joint ◽  
Histological Features ◽  
Nora’S Lesion ◽  
Plantar Aspect

We report the a case of Nora's lesion (Bizarre Parosteal Osteochondromatous Proliferation) of the sesamoid. A 32-year-old woman presented with a painless, enlarging mass of two years duration on the plantar aspect of the first metatarsophalangeal joint of the left foot. Radiographs, Computerized Tomographs and Magnetic Resonance images, initially suggested a parosteal osteosarcoma arising from the tibial sesamoid. The mass was excised, and a histological diagnosis of Bizarre Parosteal Osteochondromatous Proliferation of bone (Nora's lesion) was made. The aggressive growth of this lesion may suggest a neoplasm clinically. Histological features, however, are those of a reactive lesion.

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