Displaying publications 21 - 40 of 55 in total

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  1. Ni H, Htet A
    PMID: 23152728 DOI: 10.3332/ecancer.2012.277
    Adrenocortical carcinoma (ACC) is a malignant tumour arising from the adrenal cortex, while pheochromocytoma is a catecholamine secreting tumour of the adrenal medulla or extra adrenal sites. Both conditions are very rare, with incidence of approximately 1-2 cases per million adults annually. Most adrenocortical tumours are functioning. ACC can be associated with clinical Cushing syndrome and virilisation due to excessive production of cortisol and androgens, respectively. However, it is rare for ACC to present clinically as pheochromocytoma. We report a case of a 28-year-old lady who presented with paroxysmal hypertension and palpitations associated with raised urinary vanillyl mandelic acid. On examination, there was postural hypotension and ballotable mass in right lumbar region with no obvious features suggestive of Cushing syndrome or virilisation. A huge right suprarenal mass with areas of necrosis and calcification was noted on the abdomen CT. A right adrenalectomy was done. The histology was consistent with ACC. There are reported cases of ACC presenting with clinical features of pheochromocytoma but limited in number, accounting for barely a dozen cases in the literature. This pseudopheochromocytoma may be due to the presence of neuroendocrine features in ACC.
    Matched MeSH terms: Calcinosis
  2. Murty OP, Mun KS, Hussin H
    J Forensic Leg Med, 2008 Jan;15(1):37-41.
    PMID: 18309549
    This is a case report of 16-year-old adolescent school boy who died due to unusual calcification of coronary arteries. He died while cycling with his friends. While cycling fast he fell. He was brought dead to hospital. At times unsuspected cardiac lesions cause sudden death during extraneous physical activities in healthy persons. Sudden death in adolescents is not very common. It is an unusual case as apparently healthy adolescent boy actively participating in sports had stony hard coronary arteries. The coronaries showed advanced calcification and early bone formation. The myocardial septum had extensive fibrosis. The pathogenesis and other possible similar conditions are also discussed in the report.
    Matched MeSH terms: Calcinosis/pathology*
  3. Gupta R, Elamvazuthi I, Dass SC, Faye I, Vasant P, George J, et al.
    Biomed Eng Online, 2014;13:157.
    PMID: 25471386 DOI: 10.1186/1475-925X-13-157
    Disorders of rotator cuff tendons results in acute pain limiting the normal range of motion for shoulder. Of all the tendons in rotator cuff, supraspinatus (SSP) tendon is affected first of any pathological changes. Diagnosis of SSP tendon using ultrasound is considered to be operator dependent with its accuracy being related to operator's level of experience.
    Matched MeSH terms: Calcinosis/pathology
  4. Potić Floranović M, Ristić Petrović A, Stojnev S, Potić M, Petrović F, Janković Veličkovic L
    Malays J Pathol, 2018 Dec;40(3):343-348.
    PMID: 30580367
    INTRODUCTION: There are less than 100 cases of Large-cell calcifying Sertoli cell tumour (LCCSCT) reported in English literature. Most of them are benign, bilateral and affect paediatric population. Malignant cases occur in older patients. LCCSCT is often associated with Carney complex or Peutz-Jaghers syndrome. We present the clinicopathological features of a young adult, with unilateral "stone-like" LCCSCT, without changes in hormonal status and no clinical characteristics of noted genetic disorders.

    CASE REPORT: A 24-year-old male presented with painless hardening of the right testis. There was no gynaecomastia, and serum levels of human chorionic gonadotropin and α-fetoprotein were normal. Ultrasound depicted hyperechogenic, clearly demarcated intratesticular lesion. Partial orchiectomy was performed. Macroscopically, tumour appeared as almost entirely calcified round mass, measuring 10 mm. Histopathological evaluation showed well-circumscribed, unencapsulated tumour composed of massive calcified geographic formations, surrounded with tumour cells. Neoplastic cells were large, polygonal, with abundant eosinophilic cytoplasm, and formed irregular cords, pseudo tubular structures, and nests in a fibrous and myxoid stroma, surrounded with lymphocytes. Other forms of calcification were also present: Needle-like deposits and lamellar, mulberry-like structures. There was no necrosis, mitotic activity and nuclear pleomorphism. Immunohistochemical study was positive for inhibin α and negative for Melan A, EMA, synaptophysin, chromogranin and AFP.

    DISCUSSION: LCCSCT needs to be differentiated from other, more frequent, sex cord stromal tumours. Clinical and genetical evaluation of these patients had to be performed, due to connection of LCCSCT with genetic abnormalities. In evidently benign cases, organ-sparing surgery should be considered for younger patients, followed by long term follow-up.

    Matched MeSH terms: Calcinosis/pathology*; Calcinosis/surgery
  5. Sherazi ZA, Jayakumar CR
    Singapore Med J, 1992 Oct;33(5):496-9.
    PMID: 1455277
    To assess the importance of Computed Tomography(CT) in the evaluation of retinoblastoma, we reviewed thirteen cases of retinoblastoma which presented at Hospital University Sains Malaysia, Kelantan, Malaysia, from August 1986 to June 1991. High resolution computed tomography of the orbits was performed in all patients prior to therapy. Nine patients (69%) had unilateral and four (31%) had bilateral retinoblastoma. The interesting features were the remarkably high incidence in the right eye (89%) as compared to the left eye (11%) in unilateral retinoblastoma, and overall predominance of the male population (male to female ratio was 2:1). Computed tomography detected intraocular calcification in 82% of the tumourous eyes. All patients presented at late stages when tumours were of large size. The presence of calcification was not related to the size of the tumour. CT detected calcification in a suspected retinoblastoma with a high degree of accuracy. Computed tomographic evidence of intraocular calcification in children under 3 years of age is highly suggestive of retinoblastoma.
    Matched MeSH terms: Calcinosis/radiography
  6. Win NN, Hanyuda T, Arai S, Uchimura M, Prathep A, Draisma SG, et al.
    J Phycol, 2011 Oct;47(5):1193-209.
    PMID: 27028247 DOI: 10.1111/j.1529-8817.2011.01054.x
    A taxonomic study of the genus Padina from Japan, Southeast Asia, and Hawaii based on morphology and gene sequence data (rbcL and cox3) resulted in the recognition of four new species, that is, Padina macrophylla and Padina ishigakiensis from Ryukyu Islands, Japan; Padina maroensis from Hawaii; and Padina usoehtunii from Myanmar and Thailand. All species are bistratose and morphologically different from one another as well as from any known taxa by a combination of characters relating to degree of calcification; the structure, position, and arrangement of hairlines (HLs) and reproductive sori; and the presence or absence of rhizoid-like groups of hairs and an indusium. Molecular phylogenetic analyses demonstrated a close relationship between P. ishigakiensis, P. macrophylla, P. maroensis, and Padina australis Hauck. The position of P. usoehtunii, however, was not fully resolved, being either sister to a clade comprising the other three new species and P. australis in the rbcL tree or more closely related to a clade comprising several other recently described species in the cox3 tree. The finding of the four new species demonstrates high species diversity particularly in southern Japan. The following characters were first recognized here to be useful for species delimitation: the presence or absence of small rhizoid-like groups of hairs on the thallus surface, structure and arrangement of HLs on both surfaces either alternate or irregular, and arrangement of the alternating HLs between both surfaces in equal or unequal distance. The evolutionary trajectory of these and six other morphological characters used in species delineation was traced on the phylogenetic tree.
    Matched MeSH terms: Calcinosis
  7. Baharudin A, Rohaida I, Khairudin A
    Acta Inform Med, 2012 Jun;20(2):133-5.
    PMID: 23322967 DOI: 10.5455/aim.2012.20.133-135
    Eagle's syndrome represents a symptomatic styloid process elongation or calcification of stylohyoid or stylomandibular ligament. The symptoms include the throat pain radiating to ipsilateral ear or foreign body sensation in the pharynx causing odynophagia and dysphagia. It is commonly unilateral and bilateral cases are rare. We report a case of bilateral elongation of styloid processes treated surgically by transoral approach.
    Matched MeSH terms: Calcinosis
  8. Koh KB
    Med J Malaysia, 1995 Sep;50(3):280-1.
    PMID: 8926910
    A patient who was troubled by the persistent passage of prostatic calculi following transurethral prostatectomy is reported. The pathogenesis of these calculi is postulated.
    Matched MeSH terms: Calcinosis/etiology*; Calcinosis/surgery
  9. Raymond AA, Zariah AA, Samad SA, Chin CN, Kong NC
    Lupus, 1996 Apr;5(2):123-8.
    PMID: 8743125 DOI: 10.1177/096120339600500207
    Cerebral lupus (CL) is a common cause of morbidity and mortality in patients with SLE. The brain CTs of 27 consecutive adult patients with SLE and various neurological presentations were reviewed. The median age and duration of neurological symptoms at the time of the brain CT were 30 years (range = 14-51 years) and six days (range = 1 day-22 years), respectively. Eleven patients (41%) had normal CTs. The abnormalities in the remaining patients could be divided into six categories: (a) cerebral atrophy alone (two patients); (b) calcification alone (three patients); (c) infarct(s) alone (five patients); (d) cerebral atrophy and calcification (three patients); (e) cerebral atrophy and infarct(s) (one patient) and (f) cerebral atrophy, calcification and infarct(s) (two patients). Altogether eight patients (30%) (age range = 17-47 years) had intracerebral calcification: the globus pallidus was involved in all, putamen in two, head of the caudate nucleus in one, thalamus in one, centrum semiovale in two and cerebellum in three patients. Two patients had extensive calcifications of most of the basal ganglia, centrum semiovale and cerebellum. There was no relationship between the presence/degree of calcification and age of patients/duration or type of neurological presentation. The pathogenesis of cerebral calcification in CL is unknown. Cerebral lupus must now be included in the differential diagnosis of intracerebral calcification.
    Matched MeSH terms: Calcinosis/pathology*
  10. Aris AM, Elegbe EO, Krishna R
    Singapore Med J, 1992 Apr;33(2):204-5.
    PMID: 1621133
    Intubation was difficult and traumatic in a 40-year-old patient presented for emergency oesophagoscopy because the diagnosis of stylohyoid ligament calcification was not suspected. High probability of stylohyoid ligament calcification should be suspected when there is difficulty in lifting the epiglottis and fibre-optic laryngoscopy is suggested as the best way to tackle this problem to prevent trauma and possible risk of regurgitation and aspiration especially in emergency situation.
    Matched MeSH terms: Calcinosis/pathology*
  11. Al-Yahya, S.N., Marina, M.B., Lye, M.H., Loo, C.P.
    MyJurnal
    Thyroglossal duct cyst is the most common upper neck midline lesion in children. Approximately 1% of
    thyroglossal duct cyst undergoes malignant transformation. Calcification which is a marker of malignancy
    almost always points out to papillary thyroid carcinoma. Benign case of calcified thyroglossal cyst maybe
    undiagnosed or under reported. We report a case of a 5 year old girl with a benign calcified thyroglossal
    duct cyst, a fourth case in world literature. Here the differences between a benign and malignant
    thyroglossal duct cyst are discussed.
    Matched MeSH terms: Calcinosis
  12. Al-Qdah M, Ramli AR, Mahmud R
    Comput Biol Med, 2005 Dec;35(10):905-14.
    PMID: 16310014
    This paper uses wavelets in the detection comparison of breast cancer among the three main races in Malaysia: Chinese, Malays, and Indians followed by a system that evaluates the radiologist's findings over a period of time to gauge the radiologist's skills in confirming breast cancer cases. The db4 wavelet has been utilized to detect microcalcifications in mammogram-digitized images obtained from Malaysian women sample. The wavelet filter's detection evaluation was done by visual inspection by an expert radiologist to confirm the detection results of those pixels that corresponded to microcalcifications. Detection was counted if the wavelet-detected pixels corresponded to the radiologist's identified microcalcification pixels. After the radiologist's detection confirmation a new client-server radiologist recording and evaluation system is designed to evaluate the findings of the radiologist over some period of cancer detection working time. It is a system that records the findings of the Malaysian radiologist for the presence of breast cancer in Malaysian patients and provides a way of registering the progress of detecting breast cancer of the radiologist by tracking certain metric values such as the sensitivity, specificity, and receiver operator curve (ROC). The initial findings suggest that no single race mammograms are easier for wavelets' detections of microcalcifications and for the radiologist confirmation even though for this study the Chinese race samples detection average were a few percentages less than the other two races, namely the Malay and Indian races.
    Matched MeSH terms: Calcinosis/radiography*
  13. Bicchierai G, Nori J, De Benedetto D, Boeri C, Vanzi E, Bianchi S, et al.
    Breast J, 2020 02;26(2):299-302.
    PMID: 31486197 DOI: 10.1111/tbj.13598
    Matched MeSH terms: Calcinosis/pathology
  14. Ferdaus-Kamudin NA, Mohamed-Haflah NH
    Malays Orthop J, 2018 Mar;12(1):66-68.
    PMID: 29725520 MyJurnal DOI: 10.5704/MOJ.1803.008
    Calcinosis cutis is a rare presentation and not many cases have been reported especially of idiopathic type. We are reporting a case of idiopathic calcinosis cutis of lower limbs in a 33-year old female who presented to our clinic for multiple painless swellings over her lower limbs for the past six months, without any history of trauma or infection. We have decided to observe her condition on regular follow-up and conservative management.
    Matched MeSH terms: Calcinosis
  15. Irfan M, Hasme Zam H, Mohd Khairi M
    Malays Fam Physician, 2012;7(1):28-30.
    PMID: 25606242 MyJurnal
    The incidence of rhinolith is by far very low compared to the nasal foreign bodies, especially in adult. Foreign body (FB) in the nostril will lead to unilateral nasal symptom which can start with nasal obstruction or discomfort. In younger children, they may miss to report the problem to the parents but, later on, the FB will manifest itself with unilateral nasal discharge, which at most of the time fouls smells. We report a case of a healthy adult female who presented with unilateral foul smelly nasal discharge which later was diagnosed as rhinolith, with rubber-tip pencil eraser as the nidus of calcification.
    Matched MeSH terms: Calcinosis
  16. Rupa B, Rao GV, Nageshwar R
    Med J Malaysia, 2005 Jul;60 Suppl B:99-100.
    PMID: 16108186
    Matched MeSH terms: Calcinosis/classification; Calcinosis/diagnosis*; Calcinosis/physiopathology
  17. Chen, Y.N., Nambiar, P.
    Malaysian Dental Journal, 2008;29(1):14-19.
    MyJurnal
    The aim of present study was to determine if the radiological features noticed on dental panoramic radiographs can ascertain the different variants of ameloblastomas. Methods: A total number of 177 cases of ameloblastoma diagnosed in 5 centers in Malaysia were reviewed. The clinical records of these cases were analyzed with respect to age, sex, ethnicity, diagnosis of the lesions, anatomic site, size, side, year of diagnosis, status of the lesion, and characteristics of the lesions. Detailed radiographic features such as septation, calcification, effect on adjacent structures, periosteal reactions, demarcation and cortication of the border of the lesions were recorded. Results: The unicystic, plexiform and acanthomatous ameloblastomas tend to have unilocular radiolucencies as opposed to the follicular ameloblastoma, which demonstrated commonly multilocular radiolucency with soap-bubble appearance. The well-demarcated borders with thin condensed sclerotic border of the lesions appeared to be more significant in unicystic ameloblastoms. Moderately and poorly demarcated lesions are commonly found in follicular and acanthomatous ameloblastomas. Multiplanar pattern of root resorptions, protrusion of roots into lesions and cortical expansions with intact visible margins are commonly seen in ameloblastomas. Conclusion: The various histopathological patterns are not closely related to any specific radiological appearances in the jaws and there seems to be no direct or obvious correlation between the histopathological patterns of the tumours and the radiological appearance of ameloblastomas.
    Matched MeSH terms: Calcinosis
  18. Kaur M, Rahimi R, Razali F, Mohd Noor N, Omar E, Abdul Manaf Z, et al.
    Malays J Pathol, 2019 Aug;41(2):177-183.
    PMID: 31427553
    INTRODUCTION: Coronary artery disease (CAD) is a known cause of major cardiovascular events and calcium score (CS) has been developed as a marker of coronary atherosclerosis. Yet, the relationship between post mortem computed tomography (PMCT) CS with histologically observed calcification and the severity of coronary artery stenosis has not been widely explored and is still unclear. This study aims to determine the association between coronary artery PMCT CS with histologically observed calcification and degree of stenosis of coronary arteries in post-mortem cases.

    MATERIALS & METHODS: This was a cross-sectional study involving 101 subjects recruited from the National Institute of Forensic Medicine (IPFN) Hospital Kuala Lumpur (HKL) over a period of 15 months, from December 2012 until April 2014. PMCT CS of the coronary arteries was calculated using Agatston-Janowitz score. Histological presence of calcification was observed and the degree of stenosis was calculated using an image analysis technique.

    RESULTS: PMCT CS increased with increasing severity of stenosis (p<0.001). PMCT CS showed a positive correlation with the presence of calcification (r=-0.82, p<0.001).

    CONCLUSION: Calcium score is strongly associated with coronary artery calcification and the degree of luminal stenosis in post mortem subjects. Thus, PMCT may be useful as a non-invasive tool in diagnosing CAD in the event that an autopsy is not possible.

    Matched MeSH terms: Calcinosis
  19. Siar CH, Ng KH
    Br J Oral Maxillofac Surg, 1991 Apr;29(2):106-9.
    PMID: 2049349
    The combined epithelial odontogenic tumour represents a hybrid lesion comprising primarily areas of adenomatoid odontogenic tumour intermixed with foci of calcifying epithelial odontogenic tumour. Five such cases retrieved from the files of the Division of Stomatology, Institute for Medical Research, Kuala Lumpur, and four others from the existing literature were analysed. A mean age of 18.8 years, a female preponderance (66.7%) with a male to female ratio of 1:2 and predilection for the mandible (55.6%) were observed. All cases were treated by conservative surgery and the lack of recurrence confirmed the innocuous nature of this lesion.
    Matched MeSH terms: Calcinosis/pathology
  20. Siar CH, Ng KH
    J Laryngol Otol, 1991 Nov;105(11):971-2.
    PMID: 1722237
    A case is described of ameloblastoma of maxilla presenting with numerous calcified keratin pearls. The significance of cellular variation in relation to the behavioural potential of the ameloblastoma in general is briefly discussed.
    Matched MeSH terms: Calcinosis/pathology
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