Results 51 to 60 of about 11,118 (219)

Osteoid Osteoma in the Coccyx: A Case Report

open access: yesJournal of Mazandaran University of Medical Sciences, 2017
Osteoid osteoma is a benign bone tumor that occurs most frequently in long bones such as femur and tibia. The spine is a rare localization of osteoid osteoma and the coccyx even more exceptional.
Hojjat Hossein Pourfeizi   +2 more
doaj  

Sporadic Retinal Astrocytic Hamartoma Mimicking Retinoblastoma in a Child: A Case Report and Literature Review

open access: yesClinical Case Reports, Volume 14, Issue 9, September 2026.
ABSTRACT Retinal astrocytichamartoma (RAH) is a rare benign glial neoplasm most commonly associated with tuberous sclerosis complex (TSC). Sporadic cases, occurring in the absence of systemic phakomatosis, are uncommon and may closely mimic retinoblastoma, particularly when presenting with a calcified intraocular mass, creating a diagnostic challenge ...
Mesfin Wubishet Gurmu   +7 more
wiley   +1 more source

Ethmoidal osteoid osteoma with orbital extension in a 14 years old boy

open access: yes, 2012
Osteoid osteomas are small, benign osteoblastic lesions. Ethmoid bone osteoma has been very rarely reported. We report a rare case of osteoma of ethmoid sinus with orbital extension, in a 14-year-old boy.
Prakash Adhikari   +3 more
core   +1 more source

Plate-like osteoma cutis [PDF]

open access: yes, 2015
Osteoma cutis is the aberrant development of bone within the skin. The bone formation may be de novo (primary) or result from an injury to the skin (secondary). Here we present a healthy 53-year-old man with no known abnormalities in calcium or phosphate
Long, Wendy   +3 more
core   +1 more source

Orthognathic Surgery after Mandibular Large-Volume Osteoma Treatment

open access: yesCase Reports in Dentistry, 2020
Osteoma is a benign asymptomatic osseous tumor. Characterization of osteoma is the proliferation of cancellous or compact bone that increases in size by continuous formation of bone.
Sabit Demircan   +3 more
doaj   +1 more source

Perineurioma‐like EMA‐positive calvarial neoplasms: clinicopathological study of eight cases

open access: yesHistopathology, Volume 89, Issue 3, Page 544-553, September 2026.
Perineurioma‐like, EMA‐positive calvarial neoplasms (PLECN) are a rare group of intraosseous spindle cell tumours that demonstrate overlapping morphologic features of perineurioma and fibroblastic meningioma. These lesions tend to behave indolently but show a propensity for progressive growth.
Raheel Rizwan   +9 more
wiley   +1 more source

Perforating osteoma cutis of the foot: A case study of a misidentified verrucca plantaris

open access: yesFoot & Ankle Surgery: Techniques, Reports & Cases
Perforating osteoma cutis is a rare subtype of osteoma cutis characterized by ectopic osseous deposits within the epidermal layers of skin. Through a process called transepidermal elimination, these osseous deposits are expressed through these layers ...
Jacqueline Williams, DPM   +1 more
doaj   +1 more source

Periosteal osteoid osteoma of the distal femur

open access: yesOrthopedic Reviews, 2010
Periosteal osteoid osteoma is extremely rare. The diagnosis is not always clear. We report a case of periosteal osteoid osteoma arising from the posterior surface of the right distal femur in a 21-year-old woman.
Mohammed Fahd Amar   +6 more
doaj   +1 more source

Obstructive Pyelonephritis Secondary to Ureteral Compression by an Intra‐Abdominal Desmoid Tumor in Familial Adenomatous Polyposis: A Case Report

open access: yesClinical Case Reports, Volume 14, Issue 8, August 2026.
ABSTRACT In patients with familial adenomatous polyposis, intra‐abdominal desmoid tumors should be recognized as a rare but important cause of ureteral obstruction and obstructive pyelonephritis. Prompt cross‐sectional imaging, early recognition, and multidisciplinary management are essential for preserving renal function, treating infection, and ...
Alireza Mehrban   +5 more
wiley   +1 more source

Osteoid osteoma of the cuboid bone: a rare cause of foot pain

open access: yesActa Orthopaedica et Traumatologica Turcica, 2020
Osteoid osteoma, a common bone lesion of benign nature, is more rarely seen in feet. It most commonly involves the talus yet rarely the cuboid. The atypical symptoms of foot involvement may delay the diagnosis.
Volkan Gurkan   +3 more
doaj   +1 more source

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