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Chondroid syringoma of the external ear canal presenting as a cyst.
Kulak Burun Bogaz Ihtis Derg. 2006;16(2):80-2.
Chondroid
syringoma of the external ear canal is a rare, usually firm or
polypoid tumor, representing the cutaneous counterpart of
pleomorphic adenoma of salivary glands. We report a very rare case
of chondroid syringoma in a 40-year-old man who presented with a
fluid-containing cyst in the external ear canal. Clinical and
radiological examinations showed involvement of the whole external
canal to the annulus. The cystic lesion was totally excised along
with the overlying skin. The postoperative course was uneventful.
Lipomatous
pleomorphic adenoma of the ceruminous gland.Pathol
Int. 2006 Jan;56(1):51-3.
A case of
lipomatous pleomorphic adenoma in the ceruminous gland is reported.
A 69-year-old Japanese woman presented with a mass in the posterior
wall of the cartilaginous external auditory canal. Light microscopic
examination revealed a well-circumscribed tumor composed of tubular
structures with apocrine secretion and ceroid deposition, extensive
mature adipocytes, and spindle-shaped myoepithelial cells in the
myxoid and fibrous stroma. This case demonstrates the peculiar
location of a lipomatous pleomorphic adenoma in the external
auditory canal.
Pleomorphic
adenoma of the external auditory canal.Eur
Arch Otorhinolaryngol. 2005
Dec;262(12):969-71.
Pleomorphic
adenoma of the external auditory canal is a rare disease. It is
considered to derive from the ceruminous glands. The objective of
this study is to familiarize the clinician with the clinical
presentation and treatment of this disease. We report the case of a
58-year-old woman. Complete resection should be applied for cases in
which magnetic resonanace imaging (MRI) and computerize tomography
(CT) examination indicate no erosion in the bone and cartilage
tissue. The patient should be seen regularly for recurrence.
The
chondroid syringoma: report of a case arising from the external
auditory canal.
Eur Arch Otorhinolaryngol.
2005 Oct;262(10):868-70.
Chondroid
syringoma is an uncommon, benign skin adnexal tumour. It usually
presents as a slowly growing intradermal or subcutaneous nodule on
the face. Treatment involves local excision with a cuff of normal
tissue to prevent recurrence. A rare case of chondroid syringoma
arising from the external auditory canal is reported. The clinical
features, histology, treatment and follow-up are discussed.
Magnetic
resonance imaging of pleomorphic adenoma arising from the external
auditory canal.J
Laryngol Otol. 2003 Nov;117(11):908-9.
Pleomorphic
adenoma arising from the external auditory canal is a very rare
neoplasm, and there has been no report on magnetic resonance (MR)
imaging of pleomorphic adenoma of the external auditory canal. We
report here a case of 65-year-old male with this tumour, measuring
12 mm in a diameter. Histopathology was confirmed from the specimen
obtained at the surgical excision. MR revealed that the tumour had a
well-defined margin showing hypointensity on T1-weighted images and
hyperintensity on T2-weighted images relative to the parotid gland.
The tumour was well enhanced by contrast material. No invasion to
the surrounding tissue was observed. These MR findings were
compatible with pleomorphic adenoma of the salivary gland origin. In
treating pleomorphic adenoma of the external auditory canal,
complete surgical excision is essential for the prevention of
recurrence. It can be concluded that MR imaging is helpful for
making a differential diagnosis of external auditory canal tumours
and selection of adequate treatment.
Primary
pleomorphic adenoma of the external auditory canal diagnosed by fine
needle aspiration cytology. A case report.Acta
Cytol. 1999 May-Jun;43(3):489-91.
BACKGROUND:
Pleomorphic adenoma (PA) arising in the external auditory canal (EAC)
is a very rare neoplasm, thought to be derived from ceruminous
glands. CASE: A 43-year-old male presented with a slowly growing
mass in the right EAC. Clinical and radiologic examinations showed a
well-circumscribed tumor limited to the EAC, without a connection to
the parotid gland. Fine needle aspiration cytology (FNAC) revealed
the typical cytologic findings of PA. The diagnosis was confirmed by
histologic examination. CONCLUSION: This case illustrates that
together with clinical and radiologic findings, primary PA of the
EAC can confidently be diagnosed by FNAC.
Pleomorphic
adenoma (mixed tumor) of the external auditory canal. Differential
diagnosis of the tumors of the ceruminal glands.Pathologe.
1999 Mar;20(2):125-9.
A tumor was
removed from the right external auditory canal of a 69-year old
female patient. The histopathological and immunhistochemical
evaluation revealed a pleomorphic adenoma (mixed tumor). The
differential diagnosis of the tumors derived from the ceruminal
glands, their clinical and prognostic implications as well as the
histogenesis of pleomorphic adenomas in this localization are
discussed.
Mixed tumor
of the external auditory canal.Pathol
Int. 1994 Jan;44(1):80-3.
A mixed
tumor with apocrine differentiation seen in the external auditory
canal of a 39 year old male is reported. The well demarcated
polypoid tumor showed proliferation of elongated gland-like or
duct-like structures lined by two rows of epithelial cells,
occasionally accompanied by foci of keratinization. There were fat
cells in the myxoid stroma, in which no chondroid elements were
seen. This neoplasm is considered to have arisen from the ceruminous
gland, the modified apocrine gland of the skin.
Pleomorphic
adenoma manifesting as aural polyp. Report of a case.Arch
Otolaryngol. 1980 Jul;106(7):440-1.
We
report the sixth known case of a pleomorphic adenoma of the external
auditory canal. It manifested as an aural polyp, and the diagnosis
was made only after microscopic pathologic examination. Complete
removal was accomplished after a total parotidectomy (with
preservation of the facial nerve) provided access to the
parapharyngeal space surrounding the internal carotid artery, where
it is postulated that the tumor originated. A thorough knowledge of
the developmental anatomy of this area greatly enhances operative
success.
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