Landiolol and peri-induction tachycardia.
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Biomedical subjects
Publications and source records attributed to Sonal Sharma.
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Necrotizing fasciitis is an uncommon, rapidly spreading infection, affecting primarily the deep fascia, which may result in secondary necrosis of the subcutaneous tissue, fascia and muscle. We report a patient that had the cardinal features; namely, excruciatingly painful lesions, demonstration of gas in the tissue and an obnoxious foul odor, prominent erythema, induration, patchy necrosis, and loss of sensation in the left buttock and thigh. Its onset probably followed inadvertent trauma/injury of the left buttock. Corroborative microscopic pathology confirmed the diagnosis. Debridement and intensive supportive therapy comprising antibiotics, analgesics and fluids were given. The outcome of the therapy was gratifying.
The etiologic role of Malassezia furfur in onychomycosis is a contentious diagnostic problem because its keratinolytic ability has never been verified. This case report describes the isolation of M. furfur from the infected nails of a child clinically diagnosed with onychomycosis, and discusses the role of this organism as an etiologic agent/colonizer. The patient presented with subungual hyperkeratosis and onycholysis without associated paronychia. Budding yeast cells compatible with M. furfur were repeatedly demonstrated in KOH wet mounts of damaged nails, histopathology of hematoxylin and eosin (H&E) and periodic acid-Schiff (PAS) stained sections showed penetration of fungal elements between deeper layers of keratin, and numerous colonies of M. furfur were isolated on three consecutive occasions from nail specimens collected from different areas of hand and toenail lesions. No evidence of nail invasion by dermatophytic or nondermatophytic filamentous fungi were found by direct microscopy or culture. Microscopy and culture were negative following 12 weeks of ketoconazole treatment, which resulted in growth of healthy nail plates with normal beds. We can infer from these observations that M.furfur was an etiologic agent rather than a colonizer in the patient's nails even though direct keratinolytic character of this fungus was not demonstrated.
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OBJECTIVE: Cancer is one of the leading causes of death in children. There is the need to have the histologic review of malignancies in children from the Indian sub-continent. METHODS: In the present study, malignant tumors received over 12 years were reviewed and re-classified according to classifications based on prognosis. RESULTS: A total of 472 tumors were received over 12 years. Of these 318 were benign and 154 malignant. The commonest malignant solid tumor was lymphoma followed by pediatric renal tumors. The sarcomas included bone tumors, Rhabdomyosarcoma and synovial sarcoma. There were 13 germ cell tumors, 10 retinoblastomas and six neuroblastomas. CONCLUSION: The review revealed that a definite diagnosis or classification was not assigned in 21 cases in the original reporting. Of these 14 could be assigned a definite category on review and immuno-staining. These included five non-Wilms sarcomas, four Rhabdomyosarcomas, three Ewing's sarcoma/PNETs and two Synovial sarcomas. The study also revealed an unexpected high percentage (11%) of epithelial malignancies in children.
Nondermatophytic fungi are increasingly being reported as etiological agents of onychomycosis. We describe here a case of hand nail infection caused by Emericella quadrilineata (anamorph Aspergillus tetrazonus), a species not so far known to be an etiological agent of onychomycosis.
Trichobezoars can occur in young females usually with a history of some underlying behaviour disorder. An eighteen-year-old female presented with a fixed right upper quadrant mass. On investigation, a huge mass consisting of hair was found in the stomach, extending into the small intestine. The mass was removed in toto by a standard gastrotomy incision.
An elderly HIV negative woman with disseminated cryptococcosis is reported. The clinical presentation was unusual. Rapid diagnosis is possible if Maltese crosses are demonstrated on polarizing microscopy of tissue sections or smears. Cutaneous involvement in cryptococcosis is uncommon, however when present, can be a valuable and relatively easily available source of material from which Cryptococci can be demonstrated.
Chondroblastoma accounts for less than one percent of osseous neoplasms, and is one fifth as common as giant cell tumor, a lesion with which it is very frequently confused. It has a marked predilection for the epiphysis of long bones. Radiologically, these are lytic lesions with a thin margin of increased density. A majority of chondroblastomas have an entirely benign course and are successfully treated by curettage and bony chip grafts. Clinically, chondroblastomas may be confused with other neoplasms, both benign and malignant. Fine needle aspiration is fast gaining acceptance as an accurate and rapid technique for diagnosing osseous neoplasms. The cytological features of chondroblastoma like individually lying chondroblasts, nuclear grooves, chodroid matrix and chicken-wire calcification are diagnostic of this neoplasm and may allow fine needle aspiration to become a valuable pre-operative technique in the management of these patients.
Influenza virus infection, induced experimentally in mice, was associated with marked changes in lung morphology viz. epithelial damage with focal areas of reactive papillary hyperplasia, infiltration of leukocytes and development of oxidative stress, as evidenced by increased superoxide radical production and lipid peroxidation (LPO) products by alveolar macrophages. These effects were observed on the 5th day after virus instillation. The levels of superoxide and LPO were measured spectrophotometrically by the nitroblue tetrazolium (NBT) assay and thiobarbituric acid reactive species (TBARS) assay, respectively. The former increased by 1.5-2 fold and the latter was raised by 85% when compared with normal control. Supplementation of intranasal viral instillation with the anti-oxidant, Quercetin, given orally, resulted in a significant decrease in the levels of both superoxide radicals and LPO products. There was also a significant decrease in the number of infiltrating cells. A mild to moderate protective effect was observed in lung morphology. Thus, Quercetin may be useful as a drug in reducing the oxidative stress induced by influenza virus infection in the lung, and protect it from the toxic effects of the free radicals.
Hereditary palmoplantar keratoderma, a well-known clinical entity, is illustrated through a familial report of an unmarried young man who is the product of a consanguineous marriage (paternal and maternal grandmothers were sisters). The lesions were characterized by immense yellow waxy thickening of the skin surrounded by erythematous border (halo) and fissures/cracks associated with extensive scaling of the palms and soles. The lesions were bilateral and symmetrical. These features were supported by orthokeratotic hyperkeratosis hypergranulosis and acanthosis in hematoxylin-eosin stained tissue sections prepared from the soles. Mycelia/spores could not be identified on Periodic acid-Schiff (PAS) reaction. An autosomal dominant trait was revealed through family pedigree. An abridged update to recap the current status is highlighted.
BACKGROUND: Since its clinical discovery, lupus miliaris disseminatus faciei has sporadically been reported to have different modes of clinicopathologic expression. OBJECTIVE: The purpose of this study was to work up a list of histopathologic undertones and to project and propagate lupus miliaris disseminatus faciei as an exclusive entity. An upcoming Part II of this study will present an overview of the disease. METHODS: All patients visiting the outpatient clinic conforming to hitherto accepted clinical features were included to study patients' age and sex, duration of the disease, and above all, conduct a detailed histopathology review. Using the detailed information obtained, an endeavor was made to organize the disease into early, fully developed, and late lesions. RESULTS: The details of the various parameters were of great help in evolving this modus operandi. The clinical as well as histopathologic features of lupus miliaris disseminatus faciei are fairly distinct and facilitate visualizing the entity as a spectrum comprising early, fully developed, and late lesions. Further studies are called for.
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A woman aged 57 years had conjunctivitis of the right eye since February 2003. It had started with a pinhead-sized blister at the margin of the upper eyelid and was progressive in nature. Intense redness of the right eye, lacrimation, and severe pain confined to the right forehead were the major complaints. She had been under medical care ever since, without any tangible outcome. Its refractory nature impelled the ophthalmologist to seek dermatologic consultation, for apparently the diagnosis seemed to have eluded the consultant. Accordingly, she reported on March 2, 2004 for the opinion of severe incessant itching, profuse lacrimation, and pain that was confined only to the right eye and forehead. The very fact that she had reported with continuous rubbing of the right eye re-enforced the suspicion of the episode being an exclusive expression of pemphigus vulgaris of the eye that probably was the reason for ineffectiveness of the drugs given thus far to her. Examination of the right eye was marked by intense inflammation of the palpebral and bulbar conjunctiva, apparent in the form of severe redness (Figure 1). The conjunctiva was studded with several scattered minute erosions. Corneal opacity and cataract were its accompaniment, whereas the left eye was normal. Mucous membrane of the oral cavity was thoroughly scanned for blister and/or erosions but was normal. The rest of the skin surface was also unaffected. Nikolsky's sign was elicited by asking the patient to rub the eye. In fact, this was responsible for periodic recurrence of the episode. Tzanck test was performed by preparing, fixing, and Giemsa staining the smear from one of the erosions over the conjunctiva. The stained slides were examined under oil-immersion, which revealed plentiful acantholytic cells characterized by large nucleus containing nucleoli and occupying almost the entire eosinophilic cytoplasm and basophilic cell wall. The two biopsies from the conjunctiva were also taken with the help of a 3-mm punch. One of the biopsies was subjected to serial sections. The sections were stained with hematoxylin and eosin stain and examined by light microscopy. The presence of split/cleavage in the epidermis (intraepidermal) above the basal (suprabasal) was cardinal. The cleavage was filled with acantholytic cells of characteristic morphology (vide supra) (Figure 2). The other biopsy was subjected to direct immunofluorescence and was found complementary to the preceding microscopic pathology. Routine investigations comprising total and differential leukocyte count, liver and kidney function tests, chest skiagram, and electrocardiogram were normal. The preceding findings were fairly conducive to form the diagnosis of erosive conjunctivitis emanating from pemphigus vulgaris. Accordingly, pulse therapy (intermittent high-dose) containing 100 mg dexamethasone in 5% glucose daily by slow IV infusion on 3 consecutive days, along with 500 mg of cyclophosphamide on Day 1 only followed by continuous low-dose 50 mg cyclophosphamide, was administered. The patient has since recovered completely and is now under surveillance.
OBJECTIVE: To review eight cases of fibromatosis colli and assess their cytomorphologic features. STUDY DESIGN: Cytologic smears from eight patients diagnosed as having fibromatosis colli on fine needle aspiration cytology were reviewed. RESULTS: Cytologic features of fibromatosis colli are bland-appearing fibroblasts and degenerative atrophic skeletal muscle in a clean background. Besides these, we found a large number of muscle giant cells; numerous bland, bare nuclei; and parallel clusters of fibroblasts. Collagen was seen in all cases. CONCLUSION: A confirmatory, noninvasive diagnosis of fibromatosis colli can be made by fine needle aspiration cytology alone; invasive diagnostic and therapeutic measures are best avoided. Excision biopsy may not be necessary and should be reserved for cases with a strong clinicopathologic suspicion of malignancy.
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