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Biomedical subjects

Anindya Lahiri

Publications and source records attributed to Anindya Lahiri.

8 recordsLinked to original sources
PubMed2006

Role of staged endoprosthetic revision with flap cover for limb salvage in endoprosthetic failure.

Endoprosthetic replacement (EPR) is commonly required for limb salvage in bone malignancies. Endoprosthetic failure is a term used to denote mechanical failure or infection usually requiring removal of the prosthesis. Treatment of infection consists of EPR revision with or without placement of a temporary spacer. Flap cover (either local or free) may be required if the overlying soft tissues are of concern. It is claimed that the investment of the endoprosthesis in well-vacularised soft tissue facilitates the eradication of infection. This series included nine patients with endoprosthetic failure due to chronic infection who needed flap cover. These patients underwent revision of the EPR in two stages. The first stage of revision included removal of the endoprosthesis, insertion of a spacer and soft tissue reconstruction. If serial sampling of the periprosthetic space failed to demonstrate microbial growth, the spacer was exchanged for an endoprosthesis. A total of nine patients underwent staged revision of endoprosthesis. In five patients cover was provided by a local pedicled flap and in four by a free flap. Patients undergoing cover by a broad flat musculocutaneous flap (i.e. free/pedicled latissimus dorsi) performed better. This study reports the results of attempted limb salvage in endoprosthetic failure due to infection in nine cases. Initial findings in this small series indicate that staged revision and soft tissue reconstruction in the form of muscle flap investment of the endoprosthesis carries a higher rate of successful limb salvage.

Adolescent↗
PubMed2006

Acute exacerbation of macroglossia leading to necrosis of the anterior third of the tongue.

Macroglossia is defined as an enlarged tongue that protrudes beyond the teeth or the alveolar ridge in the resting position. Macroglossia may be classified into generalised and localised based on the extent of tongue involvement. Each of these groups can be subdivided into congenital, inflammatory, traumatic, metabolic and neoplastic lesions [Myer III CM, Hotaling AJ, Reilly JS. The diagnosis and treatment of macroglossia in children. Ear Nose Throat J 1986;65:444-8]. The congenital causes are vascular anomalies such as haemangioma and lymphovenous malformations. We report the case of a large lymphovenous malformation of the tongue in a 17 month old child who developed an acute exacerbation of macroglossia following trauma. This eventually led to necrosis of the anterior third of his tongue requiring a partial glossectomy.

Accidental Falls↗
PubMed2006

Sympathetic paraganglioma presenting with Horner's syndrome in a child.

Paragangliomas of the head and neck arise from collections of cells from the neural crest associated with cranial or sympathetic nerves. Such lesions are rare in children. The majority of paragangliomas in the paediatric age groups have been familial, occurring in association with an adrenal pheochromocytoma. Children typically present with a neck mass and systemic evidence of catecholamine hypersecretion. We present the case of a 12-year-old boy with a history of increasing headache, drowsiness and Horner's syndrome for 8 months. The patient underwent exploration of the neck mass under general anaesthesia. The lesion was found to be in continuity with the left sympathetic chain. It was highly vascular but was removed en mass and sent for histological analysis. The histology showed that the mass was a well-circumscribed encapsulated tumour and that complete excision was achieved. The post-operative period was uneventful and the patient recovered well after the operation. On review at 6 months following surgery, his scars were maturing satisfactorily but the Horner's syndrome was persistent. Sympathetic chain paragangliomas are very rare tumours in the head and neck but should be considered in the differential diagnosis when clinical and radiographic evidence suggest a paraganglioma. The presentation is typically of a slow-growing neck mass with the presence of an ipsilateral Horner's syndrome. To our knowledge, this is the first reported case of a sympathetic chain paraganglioma in a child.

Autonomic Nervous System Diseases↗
PubMed2006

Locoregional silicone spread after high cohesive gel silicone implant rupture.

A 45-year-old patient had routine cosmetic bilateral breast augmentation 6 years previously using cohesive gel implants. She presented 4 years later with a breast lump and multiple axillary lymph nodes. Exploration revealed that the breast implant had a large tear at the posterior wall of the shell with intra-capsular leakage of silicone. The axilla had eight enlarged lymph node--all were removed. Histology showed silicone granuloma in the capsule and silicone lymphadenitis. High cohesive gel implants may not be as safe as is commonly believed and all implant ruptures, irrespective of the cohesiveness of the silicone gel, should be investigated thoroughly.

Axilla↗