Osteoporotic bone marrow defect

Osteoporotic bone marrow defect is a condition which may be found in the body of the mandible. It is usually painless and found during routine radiographs. It appears as a poorly defined radiolucency (dark area) where there was a previous history of an extraction of a tooth. It may resemble a metastatic disease.

It is a localized increase of hematopoietic bone marrow that creates a radiolucent radiographic defect. They occur more commonly in women in the midyears and show a predilection for the molar region of the mandible. They are especially common in extraction sites. Scattered trabeculae may extend short distances into the defect or, in some instances, through it, giving the defect a fairly characteristic appearance. Naturally there are no clinical symptoms.

Etiology

The etiology remains unknown.

Treatment

No treatment is required.

Prognosis

Good

Differential diagnosis

This defect may easily be mistaken for a cyst or tumor. Biopsy is required to rule these out.

References

Kahn, Michael A. Basic Oral and Maxillofacial Pathology. Volume 1. 2001.

Oral and maxillofacial pathology (K00–K06, K11–K14, 520–525, 527–529)

Lips

Cheilitis Actinic Angular Plasma cell Cleft lip Congenital lip pit Eclabium Herpes labialis Macrocheilia Microcheilia Nasolabial cyst Sun poisoning Trumpeter's wart

Tongue

Ankyloglossia Black hairy tongue Caviar tongue Crenated tongue Cunnilingus tongue Fissured tongue Foliate papillitis Glossitis Geographic tongue Median rhomboid glossitis Transient lingual papillitis Glossoptosis Hypoglossia Lingual thyroid Macroglossia Microglossia Rhabdomyoma

Palate

Bednar's aphthae Cleft palate High-arched palate Palatal cysts of the newborn Inflammatory papillary hyperplasia Stomatitis nicotina Torus palatinus

Oral mucosa - Lining of mouth

Teeth (pulp, dentin, enamel)

Periodontium (gingiva, periodontal ligament, cementum, alveolus) - Gums and tooth-supporting structures

Periapaical, mandibular and maxillary hard tissues - Bones of jaws

Temporomandibular joints, muscles of mastication and malocclusions - Jaw joints, chewing muscles and bite abnormalities

Bruxism Condylar resorption Mandibular dislocation Malocclusion Crossbite Open bite Overbite Overjet Prognathia Retrognathia Temporomandibular joint dysfunction

Salivary glands

Orofacial soft tissues - Soft tissues around the mouth

Actinomycosis Angioedema Basal cell carcinoma Cutaneous sinus of dental origin Cystic hygroma Gnathophyma Ludwig's angina Macrostomia Melkersson–Rosenthal syndrome Microstomia Noma Oral Crohn's disease Orofacial granulomatosis Perioral dermatitis Pyostomatitis vegetans

Other

Eagle syndrome Hemifacial hypertrophy Facial hemiatrophy Oral manifestations of systemic disease

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