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June Yowtak, Suash Sharma, Scott E Forseen, Cargill H Alleyne
BACKGROUND: Mixed tumors of adenomatous and neuronal cells in the sellar region are an uncommon finding. The origins of these heterogeneous tumors are unknown and management of these lesions still debated. We report a very rare case of anterior gray matter pituicytic heterotopia with monomorphic anterior pituitary cells that likely represents a variant of non-secreting pituitary adenoma - neuronal choristoma (PANCH) without any ganglion cells. We also review the current literature for the different clinical presentations of PANCH...
October 12, 2016: World Neurosurgery
Mohammad Sharifi, Maral Namdari
PURPOSE: To report a rare case of encephalocraniocutaneous lipomatosis (ECCL) presented with characteristic multiple organ involvement. METHODS: A 7-day-old white Iranian girl was referred with ocular, skin and brain abnormalities. RESULTS: The findings of nevus psiloliparus, eyelid choristoma and intracranial lipoma were consistent with ECCL. CONCLUSION: Since the skin and ocular manifestations can be easily observed at birth examination, pediatricians and ophthalmologists should be aware of this condition...
September 2016: Journal of Current Ophthalmology
Somen Misra, Akshay Bhandari, Neeta Misra, Pratik Gogri, Shruti Mahajan
Ectopic lacrimal gland, being one of the choristomas, is comprised of lacrimal gland tissue outside the lacrimal gland fossa in the fronto-lateral part of the orbital roof. Ectopic lacrimal gland is a rare condition where the gland may be found in the orbit, eyelids, ocular adnexa or within the globe. Neoplastic transformation of such tissue may occur. A sixty-two-year old male patient presented with right eye proptosis and slight nasal displacement of the globe. Computerized tomography scan revealed a well-defined hypodense lesion of size 19 x 18 x 20 mm supero-lateral to lateral rectus muscle, with mild proptosis and thinning of the right lateral orbital wall...
October 2016: Orbit
Daniel T Ginat, Louis Portugal
No abstract text is available yet for this article.
July 2016: Ear, Nose, & Throat Journal
J Diaz-Delgado, O Quesada-Canales, M Arbelo, E Sierra, J F Edwards, A Suarez-Bonnet, C Santana-Suarez, A Espinosa de Los Monteros, A Fernandez
This report describes the histological and immunohistochemical features of multicentric, benign, epithelial inclusions (BEIs) in a free-ranging, adult, female Risso's dolphin (Grampus griseus). The differential diagnoses included ectopic hamartomatous epithelial inclusions, non-Müllerian choristoma, Müllerian choristoma and low-grade metastatic carcinoma/mesothelioma. The most likely diagnosis of such BEIs was multicentric, embolic, reactive mesothelium, as suggested by cytomorphological and immunophenotypical features of the BEIs, the occurrence of focal pleural rupture and the immunophenotype of the pleural mesothelium...
August 2016: Journal of Comparative Pathology
G A Ramírez, L Ressel, J Altimira, M Vilafranca
A 3-month-old, male European shorthair kitten exhibited an ill-defined, soft mass on the skin of the frontal head, which was present since birth. The surgically resected tissue was representative of a discrete dermal and subcutaneous mass comprising islands of neurons, glial and meningothelial elements, sometimes atypical or dysplastic, separated by dense collagenous connective tissue. There was no evident connection between this tissue and the brain. Immunohistochemical examination confirmed the presence of neurons and a pleocellular glial population, supporting a diagnosis of cutaneous neuroglial choristoma believed to be secondary to sequestered (resolved) meningoencephalocoele...
July 2016: Journal of Comparative Pathology
Laith Kadasi, Rogers C Griffith, D Robbins Tien, Melissa A Simon
No abstract text is available yet for this article.
August 2016: Journal of Pediatrics
Jodi M Carter, Benjamin M Howe, John R Hawse, Caterina Giannini, Robert J Spinner, Karen J Fritchie
Neuromuscular choristoma (NMC) is a very rare, developmental malformation characterized by the endoneurial intercalation of mature muscle fibers among peripheral nerve fibers. NMC typically arises in the major proximal peripheral nerves, most commonly the sciatic nerve, and may involve the lumbosacral and brachial plexus. Patients present clinically with progressive neuropathy or plexopathy. NMC is strongly associated with development of a fibromatosis, histologically identical to conventional desmoid-type fibromatosis (NMC-fibromatosis)...
October 2016: American Journal of Surgical Pathology
A Martel, E Nguyen, S Lassale
No abstract text is available yet for this article.
June 2016: Journal Français D'ophtalmologie
Johnny Li, Jianying Zeng, Roman Shinder
No abstract text is available yet for this article.
June 2016: Ophthalmology
Arnault Tauziède-Espariat, Olivier Roche, Jean-Louis Dufier, Marc Putterman
PURPOSE: Choristoma is a congenital tumor made up of ectopic normal tissue. Different histopathologic subtypes have been described. Among them, lacrimal gland choristoma is found mainly in infants and can affect the iris, the ciliary body, or the choroid and epibulbar region. Our aims were to report a case of lacrimal gland choristoma, review the published cases, and present the main differential diagnoses. METHODS: A local resection of a limited mass of the ciliary body was performed on a 12-month-old girl who had a 6-month history of visual loss, leukocoria, and pupillary deformation...
May 10, 2016: European Journal of Ophthalmology
Travis G O'Brien, Robert J Spinner, Andrea J Boon
INTRODUCTION: Neuromuscular choristomas (NMCs) are rare benign peripheral nerve lesions in which skeletal muscle tissue is admixed with nerve fascicles. METHODS: We describe a case of sciatic nerve NMC presenting with unilateral limb hypoplasia, monoparesis, and equinovarus contracture in a pediatric patient. We outline the unique clinical presentation and diagnostic work-up for our patient, including electromyographic and imaging studies. RESULTS: MRI revealed fusiform enlargement of the sciatic nerve, <50% intralesional fat, and signal characteristics similar to those of muscle tissue...
October 2016: Muscle & Nerve
P Weber-Alvarez, L A Weber-Sánchez, R Carbó-Romano, D Garteiz-Martínez
No abstract text is available yet for this article.
May 4, 2016: Revista de Gastroenterología de México
Bhoj Raj Adhikari, Jun Sato, Tetsuro Morikawa, June Obara-Itoh, Masafumi Utsunomiya, Fumiya Harada, Takatoshi Chujo, Rie Takai, Koki Yoshida, Michiko Nishimura, Mamata Shakya, Hiroki Nagayasu, Yoshihiro Abiko
BACKGROUND: Osseous choristoma is a very rare, benign lesion in the maxillofacial region. It appears as a benign mass of normally matured bony tissue covered by the normal epithelium of the tongue. It is usually seen in front of the foramen cecum of the tongue. Surgical excision is the treatment of choice with an excellent prognosis and there have been very few cases of recurrence. CASE PRESENTATION: Here we present two cases of osseous choristoma on the dorsum of the tongue...
2016: Journal of Medical Case Reports
Jonathan M Melzer, Austin Morgan, David Darrow
No abstract text is available yet for this article.
January 2016: Ear, Nose, & Throat Journal
Recep Bedir, Özlem Celebi Erdivanli, Başar Erdivanli, İbrahim Sehitoglu, Engin Dursun
INTRODUCTION: Choristoma is defined as the presence of cells in abnormal locations due to defects during embryological development. The word choristoma implies a neoplasm; whereas heterotopia refers to a displaced tissue without necessarily being a swelling or a neoplasm. Literature contains reports of cartilaginous choristoma in the cervix, endometrium, breast tissue, and oral region. CASE REPORTS: Three cases of cartilaginous choristoma, which were accidentally found during microscopic examination of excised tonsil tissues, are presented...
July 2015: Iranian Journal of Otorhinolaryngology
S Karatayli Ozgursoy, H Umudum, G K Beriat, S Kaya
Cartilaginous choristomas occur in abnormal sites that usually do not contain chondrocytes. These lesions are very rarely seen in the soft palate. We present a 38 year-old patient with cartilaginous choristoma located in nasopharyngeal surface of soft palate. Histopathological examination demonstrated a well demarcated mature hyaline cartilage tissue which was surrounded with seromucous salivary glands under a benign respiratory epithelium.
December 2015: Indian Journal of Otolaryngology and Head and Neck Surgery
Mohammad Taher Rajabi, Koosha Ramezani
Ocular lipodermoid cysts and solid dermoid tumors are choristomas which are described as normal tissue growth in an abnormal location. Congenital epibulbar lipodermoid comprises adipose tissue that is covered by connective tissue. They are usually located superotemporally, and basically tend not to involve the peripheral cornea. If the dermoid or lipodermoid is accompanied by other systemic conditions or ocular anomalies in young children, a consultation with an Internist or pediatrician is required to rule out Goldenhar syndrome which is a oculoauriculovertebral dysplasia...
October 2015: Middle East African Journal of Ophthalmology
Alysse J Sever, Michael D Koets, Gauravi K Sabharwal
A male infant was born with a bilateral cleft lip and/or palate, absent nasal structures, left anophthalmos, right coloboma, and bilateral fifth digit clinodactly. Brain magnetic resonance imaging revealed severe asymmetric hydrocephalus, absent corpus callosum, a suprasellar mass with a high riding third ventricle, and no pituitary gland. He had a normal male karyotype and normal prenatal laboratory testing. He had no significant family history and no renal, vertebral, gastrointestinal, or cardiac malformations...
December 2015: Radiology case reports
Michaela T Nguyen, Ehud Lavi
The presence of ganglion cells within an endocrine pituitary tumor has been named hamartoma, choristoma, gangliocytoma, or most recently pituitary adenoma-neuronal choristoma (PANCH). The presence of neuronal differentiation in regular pituitary adenomas has been previously suggested, however, its origin, the extent of its presence, and the relationship between the neuronal elements and the pituitary adenoma remain uncertain. Thus, to further explore the neuronal potential of pituitary tumors, we used immunohistochemistry on pituitary tumors of different grades, with a neuronal antigen protein (NeuN) antibody as a specific marker for mature neuronal differentiation...
December 2015: Experimental and Molecular Pathology
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