Congenital sacrococcygeal rhabdomyosarcoma.

Rhabdomyosarcoma (RMS) is one of the common malignant soft-tissue sarcomas affecting children. It originates from the embryonic mesenchyme precursor of striated muscle and is frequently seen in the head-and-neck region, genitourinary system and extremities. Occasionally, it arises from the retroperitoneum, biliary tract and abdomen and is rarely seen in the sacrococcygeal area. A 4-month-male child presented with a nodule over the sacrum. Based on histopathology and immunohistochemical marker studies, a final diagnosis of RMS was rendered. There was no evidence of any teratomatous elements.

Correlative study of tumor budding, mode of invasion and lymphocytic host response with known clinicopathological prognostic factors in oral squamous cell carcinoma.

BACKGROUND: Oral squamous cell carcinoma (OSCC) is a significant public health problem in India, accounting to 30% of all cancers with a worrying rise in incidence and related mortality. Invasive tumor front (ITF) of OSCC has been an area of histopathologic research interest, where parameters like tumor budding (TB), mode of invasion (MOI) and lymphocytic host response (LHR) are being evaluated extensively. OBJECTIVES: The aim is to study and evaluate the possible association of ITF histological parameters such as TB, LHR and MOI with known clinicopathological prognostic factors in cases of OSCC. SUBJECTS AND METHODS: We reviewed and analyzed 69 cases of OSCC for routine clinicopathological parameters, TB, MOI and LHR for any significant correlation (P < 0.05 by Chi-square test) with each other and with outcome in cases where follow-up was available. RESULTS: TB correlated significantly with histological grade, worst pattern of invasion (WPOI), Lymphnodal involvement (LNI), Lymphovascular invasion (LVI), Perineural invasion (PNI) and age; MOI correlated with WPOI, LNI, LVI and PNI; and LHR significantly correlated with WPOI, PNI, Tumor size (pT) and outcome. TB showed a strong correlation with MOI (P < 0.001) and LHR; and no significant association was noted between LHR and MOI. Among all the clinicopathological parameters, depth of invasion, pT, WPOI, PNI and LHR showed significant correlation with outcome. CONCLUSION: TB, MOI and LHR showed good correlation with established parameters and as they are easy and helps in prognostication, they should be included in routine histopathological reporting guidelines.

The role of intraoperative scrape cytology in vertebroplasty.

AIMS: To assess the adequacy of intraoperative scrape cytology during percutaneous vertebroplasty by correlating results with corresponding histopathology. SETTINGS AND DESIGN: Vertebroplasty is a procedure increasingly used to treat painful vertebral compression fractures. The history and presentation of osteoporotic fractures are straightforward, but difficulty arises in differentiating infective from neoplastic lesions, especially in cases where the magnetic resonance imaging is equivocal. The procedure involves injection of polymethyl methacrylate (bone cement) into the pathological vertebral body and gives dramatic pain relief. It is indicated in osteoporotic and neoplastic lesions but contraindicated in infections. Hence, intraoperative evaluation of a specimen is essential to aid in the decision of performing vertebroplasty. SUBJECTS AND METHODS: A total of 128 patients with vertebral lesions underwent core biopsy and scrape cytology from June 2006 to June 2015. Based on the findings of cytological examination, malignant lesions were subjected to vertebroplasty. In lesions with infective etiology, vertebroplasty was abandoned and antibiotic or antituberculous therapy started. RESULTS: The overall diagnostic accuracy of scrape cytology was excellent with 97.58% cases correlating with the final histopathological diagnosis. Specificity was 100%, positive predictive value was 100% and negative predictive value was 33.33%. CONCLUSION: Scrape cytology is a simple, rapid, accurate cytodiagnostic technique and should be routinely utilized in vertebral lesions for intraoperative consultation and decision making during vertebroplasty.