“…Myeloid sarcoma occurring in the temporal bone more frequently involves the mastoid bone than is the case for metastatic lesions arising from non-systemic malignancies. …”
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“…Imaging showed involvement of both mastoid and petrous bones, extending via the skull base to the nasopharynx, suggesting tuberculosis which was confirmed by characteristic histology and positive auramine staining, while Ziehl-Neelsen staining and PCR were negative. …”
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“…The atlanto-occipital joint was initially identified with a longitudinal ultrasound scan at the midline between occipital protuberance and mastoid process. Contrast media 0.5cc was injected into the atlanto-occipital joint using an in-plane needle approach under ultrasound guide. …”
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“…CT demonstrated an expansile lytic mastoid lesion extending to the middle ear, with bone erosion. …”
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“…Cholesterol granulomas are frequently found in the temporal bones, with the middle ear, mastoid caverna, and petrous apex being the most commonly affected sites. …”
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“…Contrast enhanced computed axial tomography scan of head [Figures 1 and 2] showed pneumocephalus in left cerebellopontine angle, opacification of left middle ear and nonpneumatisation of left mastoid. Child was immediately put on empirical intravenous antibiotics and decongestants. …”
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“…Traditionally, surgery of a giant PBC contemplates lateral transtemporal or middle fossa microscopic surgery; however, in recent years, endoscopic surgical techniques (primary or complementary endoscopic approach) are starting to receive a greater consensus for middle ear and mastoid surgeries. We report the rare case of an 83-year-old Caucasian male affected by a giant cholesteatoma that eroded the labyrinth and the posterior fossa dura and extended to the infralabyrinthine region, going beyond the theca and reaching the first cervical vertebra. …”
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“…The GAN provides sensation to the ear, mastoid process, parotid gland, and angle of the mandible. …”
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“…Lagochilascariasis is mostly a chronic human disease that can persist for several years, in which the parasite burrows into the subcutaneous tissues of the neck, paranasal sinuses, and mastoid. L. minor exhibits remarkable ability to migrate through the tissues of its hosts, destroying even bone tissue. …”
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“…BACKGROUND: The location of the sigmoid sinus within the mastoid cavity is quite variable. An anteriorly- displaced vertical segment of the sigmoid sinus constitutes an uncommon but dangerous anatomical variation that surgeons rarely encounter during surgery. …”
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“…The skin incision is vertical, slightly curved, 5 mm medial to the mastoid notch. Craniectomy is superiorly limited by the transverse sinus and laterally limited by the sigmoid sinus. …”
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“…The temporal CT scan showed tissue filling the tympanic cavity as well as the mastoid antrum without bone lysis. The patient underwent limited tympanoplasty. …”
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“…They placed electrodes on each mastoid and applied either right or left anodal stimulation. …”
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“…BACKGROUND: External auditory canal (EAC) cholesteatoma is a lesion lined with stratified squamous epithelium containing proliferative keratin with bony erosion in EAC which can spread to the tympanic cavity, mastoid, and surrounding organ. External cholesteatoma can occur in patients with congenital abnormalities such as congenital aural atresia (CAA). …”
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“…RESULTS: Older age, male gender, STAMCO-T, and SAMEO-ATO [O(1), T, O(2), (s -)] and mastoid involvement (STAMCO-M and ChOLE-Ch) were associated with an increased risk of complication report. …”
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“…METHODS: Anatomy investigations were performed on injected cadaveric heads to identify consistent surface surgical landmarks estimating the curse of the SS. RESULTS: Presigmoid mastoid was noted in the center of the skin incision in 100% of the specimens. …”
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“…During the 6-year follow-up, no evidence of recurrence or residual disease in the middle ear cleft or mastoid was found. Heterotopic pancreas in the middle ear is an uncommon condition and may present with otorrhea or aural fullness. …”
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“…They are manifested by a laterocervical swelling located at the anterior edge of the sterno-cleido-mastoid muscle. Their cystic nature is confirmed by ultrasound and CT. …”
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“…It was completely engulfing the jugular foramen and lower cranial nerves with bony erosion of the jugular foramen and occipital condyle. The whole mastoid was filled with the tumor. On digital subtraction angiography the majority of blood supply was from the occipital branch of the external carotid artery and vertebral artery. …”
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“…Further imaging workup and surgical exploration of the mastoid showed a secondary acquired cholesteatoma arising from a dehiscent posterior ear canal wall. …”
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