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[Cholesteatoma of the petrous bone with major expansion. Apropos of 17 cases]. 1984

C Martin, and H Martin, and J F Michalet

Cholesteatomas with major extension correspond to lesions invading beyond the classical limits of middle ear affections. Pathogenicity, and clinical and therapeutic aspects of the disorder are discussed in relation to 17 cases where the affection appeared to be secondary to initial otitic lesions. The diagnostic difficulty in patients with open tympanic membranes is the evaluation of the degree of extension of the lesion, while it has to be considered in patients with closed membranes, particularly in the presence of facial paralysis and internal ear deafness. Radiographic examinations, even when of high quality, may fail to detect cholesteatomas with major extension, and these may be a surprising finding on operation. Treatment is uniquely surgical and requires experience in otoneurosurgical techniques. Total excision is essential in order to avoid rare but serious complications of the affection.

UI MeSH Term Description Entries
D007759 Labyrinth Diseases Pathological processes of the inner ear (LABYRINTH) which contains the essential apparatus of hearing (COCHLEA) and balance (SEMICIRCULAR CANALS). Inner Ear Disease,Ear Disease, Inner,Ear Diseases, Inner,Inner Ear Diseases,Labyrinth Disease
D010579 Petrous Bone The dense rock-like part of temporal bone that contains the INNER EAR. Petrous bone is located at the base of the skull. Sometimes it is combined with the MASTOID PROCESS and called petromastoid part of temporal bone. Petrous Apex,Petrous Pyramid,Bone, Petrous,Petrous Bones
D001847 Bone Diseases Diseases of BONES. Bone Disease,Disease, Bone,Diseases, Bone
D002343 Carotid Artery, Internal Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose. Arteries, Internal Carotid,Artery, Internal Carotid,Carotid Arteries, Internal,Internal Carotid Arteries,Internal Carotid Artery
D002781 Cholesteatoma A non-neoplastic mass of keratin-producing squamous EPITHELIUM, frequently occurring in the MENINGES; bones of the skull, and most commonly in the MIDDLE EAR and MASTOID region. Cholesteatoma can be congenital or acquired. Cholesteatoma is not a tumor nor is it associated with high CHOLESTEROL. Cholesteatomas
D003392 Cranial Sinuses Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus). Cranial Venous Sinuses,Intracranial Sinuses,Sinuses, Cranial,Sinuses, Cranial Venous,Sinuses, Intracranial,Venous Sinuses, Cranial
D003638 Deafness A general term for the complete loss of the ability to hear from both ears. Deafness Permanent,Hearing Loss Permanent,Prelingual Deafness,Deaf Mutism,Deaf-Mutism,Deafness, Acquired,Hearing Loss, Complete,Hearing Loss, Extreme,Acquired Deafness,Complete Hearing Loss,Deafness, Prelingual,Extreme Hearing Loss,Permanent, Deafness,Permanent, Hearing Loss,Permanents, Deafness
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D004388 Dura Mater The outermost of the three MENINGES, a fibrous membrane of connective tissue that covers the brain and the spinal cord. Falx Cerebelli,Falx Cerebri,Pachymeninx,Tentorium Cerebelli
D005154 Facial Nerve The 7th cranial nerve. The facial nerve has two parts, the larger motor root which may be called the facial nerve proper, and the smaller intermediate or sensory root. Together they provide efferent innervation to the muscles of facial expression and to the lacrimal and SALIVARY GLANDS, and convey afferent information for TASTE from the anterior two-thirds of the TONGUE and for TOUCH from the EXTERNAL EAR. Cranial Nerve VII,Marginal Mandibular Branch,Marginal Mandibular Nerve,Seventh Cranial Nerve,Nerve VII,Nerve of Wrisberg,Nervus Facialis,Nervus Intermedius,Nervus Intermedius of Wrisberg,Cranial Nerve VIIs,Cranial Nerve, Seventh,Facial Nerves,Mandibular Nerve, Marginal,Mandibular Nerves, Marginal,Marginal Mandibular Nerves,Nerve VIIs,Nerve, Facial,Nerve, Marginal Mandibular,Nerve, Seventh Cranial,Nerves, Marginal Mandibular,Nervus Faciali,Seventh Cranial Nerves,Wrisberg Nerve,Wrisberg Nervus Intermedius

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