Fine-needle aspiration cytology in soft tissue tumors-5-year institutional experience.

INTRODUCTION: Fine-needle aspiration cytology (FNAC) forms one of the first-line investigations in the evaluation of tumors in modern era. Its role in diagnosing soft tissue tumors (STT) has been well established. However, the morphological overlap and biological heterogeneity of STT pose a morphological diagnostic challenge. AIMS: To evaluate the scope of FNAC in diagnosis and categorization of STT and to correlate the cytological features with histological findings wherever available, and to analyze the reasons for discordance, if any. MATERIALS AND METHODS: All FNAs of cytologically diagnosed STT during 5-year period were retrospectively analyzed. FNAC smears stained using May-Grünwald Giemsa, Pap- and hematoxylin and eosin, were evaluated and interpreted inconjunction with clinical details. Cellblock and immunocytochemistry (ICC) was done, wherever required to render the final diagnosis. RESULTS: Of the total 15,844 FNAC done in 5 years, 1319 (8.3%) cases were diagnosed as STT. Benign tumors comprised the majority (94.2%), whereas 5.8% were diagnosed to be malignant. These were further grouped according to the cytomorphological features into adipocytic (82.2%), benign spindle cell lesions (10.8%), vascular (1.4%), spindle cell sarcoma/sarcoma NOS (2.2%), myxoid (0.3%), round cell tumors (0.9%), metastatic tumors (1.9%), and others (0.3%). The cytological findings were corelated with histopathological findings, which were available in 316 cases. The specificity and sensitivity calculated for detecting malignancy was 99.2% and 95.4%, respectively. The overall diagnostic accuracy for diagnosing malignancy was 98.7%. Among the group of non-adipocytic tumors, the sensitivity, specificity, PPV, NPV calculated for diagnosing a malignant tumor (irrespective of exact sub-categorization) is 95.2%, 100%, 100%, and 96.4%, respectively. The overall diagnostic accuracy in non-adipocytic tumors is 97.92%. CONCLUSION: FNAC is a simple, cost effective, and minimally invasive method in diagnosing STT with good sensitivity and specificity. It is of utility not only in primary lesions, but also for metastatic tumors, and for the documentation of locally recurrent soft tissue neoplasms.

Phaeohyphomycosis: Cytomorphologic Evaluation in Eleven Cases.

OBJECTIVE: Phaeohyphomycosis caused by phaeoid fungi is a type of mycosis emerging worldwide which causes a wide variety of clinical manifestations. STUDY DESIGN: A retrospective analysis of 11 cases diagnosed with fungal inflammation on cytology over a period of 6 years (2013-2018) was done along with culture/histopathologic confirmation. RESULTS: Of the total of 11 cases, 9 cases presented with subcutaneous swellings and 1 case each with brain and lung lesions. The age range was 30-83 years (mean: 53.6); 8 patients were male and 3 were female. Cytologic smears showed fungal profiles with septate tortuous hyphae, as well as swollen and narrow, yeast-like swellings with an irregular breadth of the hyphae in all cases. The fungal profiles were visualized on a Masson-Fontana stain. The background showed inflammatory cells, giant cells, and necrosis in variable proportions. Five cases were diagnosed as phaeohyphomycosis on cytology, whereas 3 cases were misdiagnosed as aspergillus and 2 as candida. In 1 case, typing of the fungus was not done. Histopathology was available in 5 cases, and in all these a diagnosis of phaeohyphomycosis was reached. Ten of the 11 cases had confirmation on fungal culture. CONCLUSIONS: Phaeoid fungi are rarely seen in routine cytologic practice. Careful evaluation of cytologic smears and an awareness of the characteristic morphologic features of phaeohyphomycosis are helpful in arriving at a correct diagnosis. Fine needle aspiration cytology provides a rapid diagnosis, enabling prompt therapy.

Clinical Profile and Outcome in Patients of Diabetic Foot Infection.

PURPOSE: The aim is to study the clinical profile and outcome of patients presenting with diabetic foot infections (DFI). METHODS: This was a prospective study recruiting patients >18 years of age, with DFI. All patients underwent a detailed history and clinical examination. Patients were classified as per the International Working Group on the Diabetic Foot -IDSA classification. The patients were followed up every month for 3 months. Clinical outcome was studied regarding the rate of amputations, readmissions, and mortality. RESULTS: There were 65 patients with a mean age of 58.49 ± 11.04 years with male predilection (83.08%). Mean duration of diabetes mellitus was 12.03 ± 6.96 years. Ulcer (92.31%) and discharge (72.31%) were the most common presenting complaints. Monomicrobial growth was present in 36 patients (55.38%). Majority of isolates were Gram-negative (71.43%). The most common isolates were Escherichia coli and Staphylococcus aureus (28.57% each). Mild, moderate, and severe DFI was present in 40%, 47.69%, and 12.31% of patients, respectively. Severe DFI was associated with poor ulcer healing (P = 0.02) and higher number of major amputations (P < 0.001). Minor amputations were most commonly associated with moderate and severe DFI. Severe DFI had the highest number of readmissions (P = 0.04). Patients undergoing minor amputations had a significant association with area of ulcer (P < 0.001). CONCLUSION: This study shows the predominance of monomicrobial growth and Gram-negative organisms in diabetic foot patients. With increase in the severity of DFI, there was increased rate of hospital readmissions, amputations (major and minor), and mortality. Dimensions of ulcer may have a bearing on rate of minor amputations.

Ameboma of Colon Simulating Colonic Adenocarcinoma.

Amebiasis is common in tropical and developing countries with variable symptoms. Ameboma of the colon occurs rarely due to the annular growth of granulation tissue and can present as mass lesion simulating colonic carcinoma in elderly individuals. Due to diagnostic dilemma or in case of complications, for example, acute intestinal obstruction, perforation, or bleeding per rectum, the patient requires urgent surgical exploration and final diagnosis is made on histopathological examination.

Fungal necrotizing fasciitis, an emerging infectious disease caused by Apophysomyces (Mucorales).

BACKGROUND: The mucoralean fungi are emerging causative agents of primary cutaneous infections presenting in the form of necrotizing fasciitis. AIMS: The aim of this study was to investigate a series of suspected necrotizing fasciitis cases by Apophysomyces species over one-year period in a northern Indian hospital. METHODS: The clinical details of those patients suspected to suffer from fungal necrotizing fasciitis were recorded. Skin biopsies from local wounds were microscopically examined and fungal culturing was carried out on standard media. The histopathology was evaluated using conventional methods and special stains. Apophysomyces isolates were identified by their morphology and by molecular sequencing of the internal transcribed spacer (ITS) region of the ribosomal genes. Antifungal susceptibility testing was carried out following EUCAST guidelines and treatment progress was monitored. RESULTS: Seven patients were found to be suffering from necrotizing fasciitis caused by Apophysomyces spp. Six isolates were identified as Apophysomyces variabilis and one as Apophysomyces elegans. Five patients had previously received intramuscular injections in the affected area. Three patients recovered, two died and the other two left treatment against medical advice and are presumed to have died due to their terminal illnesses. Posaconazole and terbinafine were found to be the most active compounds against A. variabilis, while the isolate of A. elegans was resistant to all antifungals tested. CONCLUSIONS: Apophysomyces is confirmed as an aggressive fungus able to cause fatal infections. All clinicians, microbiologists and pathologists need to be aware of these emerging mycoses as well as of the risks involved in medical practices, which may provoke serious fungal infections such as those produced by Apophysomyces.

A prospective study of mucormycosis in north India: experience from a tertiary care hospital.

Mucormycosis is an emerging angioinvasive infection caused by the ubiquitous filamentous fungi of the Order Mucorales and class of Mucormycetes. We conducted a prospective study of 38 patients who were diagnosed as having mucormycosis in a tertiary care hospital during January 2010 to June 2011. The cases were analyzed regarding the site of involvement, underlying disease and species of fungi isolated, antifungal susceptibility pattern of the isolates, and outcome of therapy. The mean age of the patients was 40.43 years, with 72% male. Rhino-orbital mucormycosis (61.5%) was the most common presentation followed by cutaneous manifestations (31%), gastrointestinal symptoms (5%), and pulmonary (2.5%). Diabetes mellitus (56%) was the significant risk factor in rhino-orbito-cerebral presentation (OR = 7.55, P = 0.001). Among 23 culture isolates, Rhizopus arrhizus (37.5%) was the most common, followed by Apophysomyces variabilis (29.2%), Lichtheimia ramosa (16.7%), Rhizopus microsporus (4.2%), Rhizomucor pusillus (4.2%), and Apophysomyces elegans (4.2%). Rhizopus arrhizus was most commonly isolated from rhino-orbito-cerebral mucormycosis and Apophysomyces species were generally obtained from cutaneous mucormycosis. In vitro antifungal susceptibility showed that 16 isolates were sensitive to amphotericin B (MIC less than 1 µg/ml), while in contrast, all isolates were found to be resistant to voriconazole (MIC- 0.25 to >8), fluconazole (MIC > 32), flucytosine (MIC > 32). Treatment regimens included antifungal therapy, reversal of underlying predisposing risk factors, and surgical debridement. Combination of surgery and medical treatment with amphotericin B was significantly better (OR = 0.2, P < 0.04) than amphotericin B alone (61.5% vs. 10.3% patient survival). The awareness of fungal diseases amongst clinicians is required to decrease the fatal outcome of disease.

Solitary plasmacytoma of the rib: A rare case.

Localized solitary plasmacytoma of the bone is a rare disease and is characterized by only one or two isolated bone lesions with no evidence of disease dissemination. We report a case of solitary plasmacytoma of the rib in a 43-year-old female. The patient underwent complete en-bloc resection of the chest wall including rib, muscle, and parietal pleura. Patient is asymptomatic without any recurrence after two and half years of follow up.

Traumatic anterior abdominal wall hernia: A report of three rare cases.

Traumatic abdominal wall hernia is a rare condition that can follow any blunt trauma. Associated intra-abdominal injuries are infrequent. In this study, we are reporting three cases, diagnosed as abdominal wall hernia associated with herniation of bowel loops due to blunt trauma. In one case, injury of the herniated bowel was seen. In western medical literature, only few cases have been reported especially with intra-abdominal injuries.

Giant sarcomatoid carcinoma of the breast - a rare case report.

Metaplastic breast carcinoma breast is rare entity having mixture of epithelial and mesenchymal elements which contains overtly sarcoma-like elements on light microscopy and its clinical behaviour is not well documented. We are presenting a case in a 50 - year old female presented with a large swelling over the left side of the breast. On histopathology, diagnosis made as metaplastic carcinoma of the breast with sarcomatoid variant. The case merits presentation because of its rarity, low frequency of axillary metastasis and difficulty in interpreting the morphological features which correspond with prognosis.

Traumatic abdominal wall hernia.

BACKGROUND: Traumatic abdominal wall hernia (TAWH) is uncommonly encountered despite the high prevalence of blunt abdominal trauma. The diagnosis is often difficult because of its varied presentation along with lack of awareness of this entity. METHODS: The case files of all patients with TAWH who were operated at our hospital were retrospectively reviewed and analyzed. RESULTS: A total of 11 patients with TAWH were analyzed (8 males, 3 females). The clinical presentation was varied, with a palpable defect and a reducible swelling (6 patients), localized area of irreducible swelling (3 patients), surgical emphysema (2 patients), and cellulitis/abscess formation (2 patients). All of these patients were operated within 24 hours of hospital admission. Except for the 3 patients who presented late, there was a favorable outcome in all the others. The cause of mortality was septicemia, possibly due to incarceration of bowel in the defect leading to strangulation and perforation. CONCLUSION: TAWH, although uncommon, is associated with significant morbidity and mortality when there is a delay in diagnosis and intervention. Early intervention leads to a significantly better outcome.

Gastro-colic Fistula due to Acid Ingestion.

Corrosive ingestion can cause serious damage to the upper gastrointestinal tract. The acute consequences could range from mild erythema to gangrene and perforation. Delayed consequences could be strictures of the oesophagus presenting as dysphagia or gastric, pyloric and antral stenosis presenting as gastric outlet obstruction. Gastro-colic fistula as a complication of acid ingestion is a rare clinical entity. We report this case of a patient who presented with complaints of dysphagia and recurrent vomiting of foul smelling brownish vomitus two months following suicidal acid (sulphuric acid) ingestion. The presence of a gastro-colic fistula was confirmed with a barium meal examination.

Spectrum of perforation peritonitis in India--review of 504 consecutive cases.

BACKGROUND/OBJECTIVE: Perforation peritonitis is the most common surgical emergency in India. The spectrum of etiology of perforation in Tropical countries continues to be different from its Western counterpart. The objective of the study was to highlight the spectrum of perforation peritonitis as encountered by us at Government Medical College and Hospital (GMCH), Chandigarh. METHODS: Five hundred and four consecutive cases of perforation peritonitis over a period of five years were reviewed in terms of clinical presentation, operative findings and postoperative course retrospectively at GMCH, Chandigarh. RESULTS: The most common cause of perforation in our series was perforated duodenal ulcer (289 cases) followed by appendicitis (59 cases), gastrointestinal perforation due to blunt trauma abdomen (45 cases), typhoid fever (41 cases) and tuberculosis (20 cases). Despite delay in seeking medical treatment (53%), the overall mortality (10%) was favourably comparable with other published series though the overall morbidity (50%) was unusually high. CONCLUSION: In contrast to western literature, where lower gastrointestinal tract perforations predominate, upper gastrointestinal tract perforations constitute the majority of cases in India. The increasing incidence of post-traumatic gastro-enteric injuries may be due to an increase in high speed motor vehicle accidents which warrant early recognition and prompt treatment to avoid serious complications and death.

Tubercular appendicitis--a case report.

Tuberculosis of the appendix remains a rarity despite the frequency of intestinal tuberculosis. We report a case of acute appendicitis that underwent appendectomy at our hospital, and the histopathology of the specimen revealed tuberculosis.

Adenocarcinoma in horseshoe kidney.

An adenocarcinoma arising in a horseshoe kidney (HK) is rare. The case of a forty five-year-old male patient, presenting with a recurrent, painless hematuria, is reported. On investigation the patient was found to have a horseshoe kidney, with an adenocarcinoma in the left hemi-kidney, which was treated surgically, with a hemi-nephrectomy, of the involved part, being performed to excise the tumor. A brief review of the relevant literature is also presented.