"Phoenix jaw"-bone regeneration of the necrotic mandible between pathological fractures: an unusual but evocative course of bisphosphonate-related osteonecrosis.

Management of advanced bisphosphonate-related osteonecrosis of the jaw, particularly in cases of pathological fractures with extraoral fistulas, is a challenging responsibility for craniomaxillofacial specialists. Although a periosteal reaction is occasionally observed in cases with extensive sequestra, few reports have documented circumferential periosteal osseous formation resulting in bone repair. We present the case of a 78-year-old woman who was treated for breast cancer and received intravenous bisphosphonates.

Life-threatening oronasal hemorrhage managed by transcatheter embolization of bilateral maxillary arteries in an elderly patient with comminuted LeFort I fracture.

Massive orofacial hemorrhage mostly occurs in younger individuals unilaterally and is associated with extensive LeFort fractures. Here we describe a 91-year-old man who sustained a life-threatening hemorrhage of the bilateral internal maxillary artery (IMA) system with a comminuted LeFort I fracture caused by a road traffic accident while he was driving. His injury severity score was high (34), but no severe brain injury was sustained.

Nodular fasciitis in the buccal region with rapid growth after incisional biopsy mimicking sarcoma.

Nodular fasciitis (NF) is a reactive and proliferative fibroblastic lesion that occurs predominantly in the upper limbs but rarely develops in the oral cavity. This lesion can be misdiagnosed as malignant owing to its frequent display of rapid growth, rich cellularity, and high mitotic activity. Unlike a sarcoma, NF can resolve spontaneously or after an incisional biopsy.

Necrotizing sialometaplasia in a patient with an eating disorder: palatal ulcer accompanied by dental erosion due to binge-purging.

This report describes a case of necrotizing sialometaplasia (NS) accompanied by significant dental erosion of the maxillary teeth of the palatal surfaces owing to chronic self-induced vomiting. This observation contributed to the determination of an immediate and appropriate provisional diagnosis of NS in a patient with an eating disorder, which subsequently was confirmed histopathologically as NS. The diagnostic challenges presented by NS associated with eating disorders and its management are discussed.

Closed reduction of mandibular condyle fractures using C-arm fluoroscopy: a technical note.

We describe a C-arm technique for mandibular condylar fractures in an anatomic study using a model skull and show its feasibility in a clinical case. The C-arm allowed posterior-anterior visualization of the condylar process. The X-ray axis was canted ∼15 degrees cranially to the Frankfort horizontal line.

C-arm-guided reduction of zygomatic fractures revisited.

Background: Anatomic reduction of the zygomatic arch, a key surgical landmark for midfacial width and projection, is essential for the treatment of combined fractures of the zygomaticomaxillary complex and zygomatic arch. Reduction control in surgery for this common facial fracture would be facilitated by intraoperative real-time assessment using widely available and reliable equipment. Although C-arm fluoroscopy is routinely used in the repair of orthopedic fractures, its use in the maxillofacial region, particularly for combined zygomatic fractures, has been scarcely reported.

NK cell lymphoblastic lymphoma in the masticator space: a case of non-Hodgkin lymphoma with challenging maxillofacial manifestation and immunophenotype.

Clinical and pathologic findings in extranodal non-Hodgkin lymphoma (NHL) often raise challenging problems in diagnosis. We demonstrate the first established case of lymphoma with precursor natural killer (NK) cell origin in the oral and maxillofacial region. An 81-year-old Japanese man had an enlarged facial mass mainly in the parotid region but hyposensitivity in the affected side of the mental and lingual region, and diagnostic imaging revealed the origin to be in the masticator space and indicated an advanced-stage lymphoma.

Bilateral multiple spindle cell lipomas of the tongue.

Spindle cell lipoma (SCL) typically occurs in elderly men as a solitary lesion in the posterior neck and back, but less commonly also involves the oral cavity. Here, we describe a rare case of bilateral multiple SCLs of the tongue. The patient was a 72-year-old Japanese man with multiple painless soft nodules in the bilateral margins of the tongue.