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Biomedical subjects

J N Kulkarni

Publications and source records attributed to J N Kulkarni.

At least 37 records · Page 2Linked to original sources
PubMed1994

Growing teratoma syndrome.

Growing teratoma syndrome is the term applied to enlarging retroperitoneal or other metastatic masses containing mature teratoma during chemotherapy for nonseminomatous germ cell tumors. Four cases of the growing teratoma syndrome are presented, the metastatic masses being in the retroperitoneal in all the cases. All these patients had enlarging retroperitoneal masses in the presence of normal serum biomarkers following chemotherapy for nonseminomatous tumors. Surgical excision was carried out in all four patients, with disease free survivals ranging from 6 to 24 months after surgery.

Adolescent↗
PubMed1994

Bilateral renal angiomyolipoma.

Bilateral renal angiomyolipoma is a rare entity, usually associated with tuberous sclerosis. Five cases of bilateral renal angiomyolipoma, all females, with a mean age of 34.6 years, are reported. All patients had symptoms attributable to lesions only on one side, with flank pain and mass the commonest symptoms encountered. Only one case had clinical evidence of stigmata of tuberous sclerosis. The mean size of the lesions on the symptomatic side was 17 cm, while that on the asymptomatic side was 2 cm. Three patients were diagnosed correctly as having angiomyolipomas preoperatively with the use of ultrasonography and computed tomography (CT); two of these were treated with total nephrectomy and the third with partial nephrectomy. The other two cases were seen before the availability of CT and were only diagnosed intraoperatively. Both patients were treated with total nephrectomy. The lesions on the asymptomatic side were kept on close surveillance. Two patients developed an increase in the size of the lesions in the contralateral kidney 1 year and 3 1/2 years after the first surgery. Both patients were treated with partial nephrectomy. All patients are alive at 3-14 years (mean 6.6 years) after operation.

Adult↗
PubMed1994

Intravesical bacillus Calmette-Guerin for superficial bladder cancer: experience with Danish 1331 strain.

A total of 95 patients with stage Ta/T1 superficial bladder cancer was eligible for intravesical bacillus Calmette-Guerin (BCG) immunoprophylaxis according to the standard high risk criteria for tumor recurrence and progression. Of these patients 50 agreed to undergo treatment while the remaining 45 refused any intravesical therapy and served as concurrent nonrandomized controls. The patient and tumor characteristics in the 2 groups of patients were identical. All patients underwent complete transurethral resection of the bladder tumor. Therapy consisted of 120 mg. weekly instillations of BCG (Danish 1331 strain) for 6 weeks. Among the 50 patients 33 received BCG initially while 17 received it after failure of intravesical chemotherapy. Responses were evaluated according to standard criteria. Recurrence was noted in 24 patients (48%) in the BCG group compared to 38 (84.4%) in the control group. The recurrence rates per year and per 100 patient-months were significantly reduced in the BCG arm compared to the control arm. The mean interval to first recurrence and the mean recurrence interval were significantly increased in the BCG arm compared to the control arm. The relative risk of recurrence in the BCG group was 0.62 versus 1.63 in the control group. Subgroup analysis showed significant benefit of BCG for patients with single as well as multiple, stages Ta and T1, and grades II and III tumors. Comparison with pretreatment controls in the BCG group revealed a significant reduction in the recurrence rate in those patients after treatment with BCG, which was not seen in the control group. The benefit of BCG was seen in those who received BCG initially as well as in those who received it after failure of intravesical chemotherapy. Multivariate analysis of prognostic factors showed that this benefit in the BCG group was related only to the treatment, while other prognostic parameters, such as tumor stage, grade, number and so forth were not independent prognostic variables. The rate of progression to muscle invasion was not significantly different in the 2 treatment groups. The relapse-free survival in the BCG group was 35.4% at 60 months compared to 11.2% in the control group (p < 0.001). The side effects of BCG therapy were mild, brief and easily controlled with conservative measures.

Administration, Intravesical↗
PubMed1994

Prophylactic bilateral groin node dissection versus prophylactic radiotherapy and surveillance in patients with N0 and N1-2A carcinoma of the penis.

Sixty-four patients with carcinoma of the penis and clinically negative nodes (N0, N1-2a) had either bilateral groin node dissection (BGND), radiotherapy (RT) to the groin or surveillance in a prospective nonrandomized study on a sequential basis. The tumors were classified according to TNM staging and showed T1, T2 and T3 lesions in 24, 20, 20 patients, respectively, while their node status was N0 in 37 and N1-2A in 27 patients. The tumor grade was G1, G2 and G3 in 10, 30 and 24 patients, respectively. Of these patients 27 had BGND, 18 RT and 19 surveillance. The BGND group showed positive nodes in 4 (14%) patients: 1 with T2 and 3 with T3, and 2 each with N0 and N1-2A status. The 5-year survival was analyzed in terms of primary (T), node status (N), and grade (G) of the tumor and showed 79, 75 and 50% in G1, G2 and G3 tumors, respectively. The overall 5-year survival rate was 74, 66 and 63%, in the BGND, RT and surveillance groups, respectively. Furthermore, analysis of the survival rates in relation to the T and N status in the 3 treatment groups showed identical survival rates for the T category, but for the N category N0 patients had a significantly higher survival rate in the BGND group when compared with the others. In the follow-up relapses occurred in 10 (15%) patients: 7, 2 and 1 in the surveillance, RT and BGND groups, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1993

Carcinoma of the penis: the Indian experience.

A total of 150 evaluable patients with carcinoma of the penis were treated at the Tata Memorial Hospital between 1984 and 1987. The majority of patients were in the 4th to 7th decades. All patients presented with a growth on the penis, the biopsy of which revealed squamous carcinoma. The primary lesions were T1 in 34, T2 in 73, T3 in 41, and T4 in 2 patients, respectively. The inguinal nodes were not palpable (N0) in 77 patients, palpable but histologically not metastatic in 39 patients, and metastatic in 34 patients. The treatment of the primary lesion was surgery in 142 patients and radiation therapy in 8 patients. Patients with nonpalpable nodes were kept under surveillance and those with pathologically metastatic nodes were subjected to bilateral ilioinguinal lymphadenectomy. The size related 5 year survivals were 83.3% for T1, 60.4% for T2, and 39.5% for T3 lesions. The 5 year survivals for patients with grade I lesions were 90.3%, for grade II 58.6%, and for grade III 16.7%. The 5 year survival rate for patients for N0 nodes was 75.4% while the 3 year survival rates for patients with N1 and N2 nodes were 40% and 38.8%, respectively. The factors signifying poor survival were perinodal extension and iliac node metastases. There were 8 penile stump recurrences, of which 6 could be salvaged. Metachronous inguinal node metastases developed in 16 patients among whom surgical lymphadenectomy was possible in 12 while 4 had unresectable metastases.

Adult↗
PubMed1993

Stage I testicular tumours: the Tata Memorial Hospital experience.

One hundred and fifty-six patients with stage I testicular germ cell tumours--81 seminomas and 75 nonseminomatous tumours--were treated at the Tata Memorial Hospital, Bombay over a 5 year period. Among the seminomas, 71 were treated with post-orchidectomy prophylactic radiation therapy to the retroperitoneum and/or mediastinum, while 10 patients refused radiation therapy and were put on surveillance. The disease-free and total survival in seminomas were 92.6% and 100%, respectively. Among the patients with nonseminomatous tumours, 58 had normal levels of serum biomarkers while 17 had raised biomarkers. In the normal marker group, 20 patients underwent retroperitoneal lymph node dissection (RPLND) with a nodal positivity of 30%, while the other 38 patients refused surgery and were either placed on unplanned surveillance (33 patients) or chemotherapy (5 patients). In this group, the patients undergoing RPLND had a survival rate of 100% as compared to 93.9% in those with surveillance. The overall disease-free and total survival rates in patients with normal markers were 86.2% and 96.6%, respectively. In the raised marker group, 6 patients underwent RPLND with a survival rate of 100% and 11 patients received chemotherapy with a survival of 90%, with the overall survival for patients with raised markers being 94.1%. The overall disease-free and total survival rates for all patients with stage I nonseminomatous tumours were 88% and 96%, respectively.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1993

Neobladder after cystectomy: an Indian experience.

A continent urinary reservoir was constructed from an ileocolonic segment and anastomosed to the urethra in 30 males after radical cystectomy for infiltrating bladder cancer. A small cuff of the prostate was retained for anastomosis with the reservoir and ureteric anastomosis was done from within the reservoir by the "pull through" method. Complete continence was achieved in 29 patients, all of whom had an adequate reservoir capacity exceeding 400 ml; they were able to empty the reservoirs satisfactorily as judged by the residual urine (< 50 ml). Urodynamic study revealed an intra-abdominal pressure < 30 cm of water at rest and at reservoir capacity of 500 ml. Early post-operative complications included urinary leaks in 3 patients, intestinal obstruction in 3 and a faecal fistula in 1. Deterioration of the upper tracts was noted in 5 cases. Twenty-seven patients are alive after a mean follow-up of 36 months.

Adult↗
PubMed1993

Urethral recurrences following radical cystectomy for invasive transitional cell carcinoma of the bladder.

A total of 177 patients with invasive transitional cell carcinoma of the bladder underwent radical cystoprostatectomy, of whom 13 underwent simultaneous urethrectomy. The remaining 164 patients were followed up regularly with urethroscopy and urethral cytology. Fifteen patients developed urethral recurrences, 4 of which were associated with relapses at other sites (recurrence rate 9%), with a mean recurrence-free interval of 13.5 months. Nine of the 11 patients with isolated urethral recurrences underwent total urethrectomy and all except 1 are alive and disease-free 2 to 8 years later. One patient was salvaged by radiation therapy and refused further treatment. The 4 patients with other associated relapses died within 18 months. The urethral recurrence rate was correlated to different risk groups defined on the basis of tumour characteristics in the cystectomy specimen. This revealed a 70% urethral recurrence rate in the high risk group, 9.6% in the moderate risk group and 1.2% in the low risk group. However, no conclusion could be drawn regarding the influence of prostatic involvement on the urethral recurrence rate.

Carcinoma, Transitional Cell↗
PubMed1993

Value of tumor markers in nonseminomatous germ cell tumor of the testis.

We herein report 8 years experience in the management of nonseminomatous germ cell tumor of the testis with 2 serum markers: alpha-fetoprotein (AFP) and human chorionic gonadotropin (hCG)). In the first 4-year period (group I) marker status was correlated retrospectively to the positivity of nodes and response to treatment. Of the 81 patients in group I, 22, 29 and 30 were in stages I, IIab, and IIc, III and IV, respectively. Of them, 5, 25 and 24 from the respective stages showed raised markers, while 17, 4 and 6 of the same stages had normal markers. The accuracy of the markers in predicting the positivity of the nodes and response to treatment ranged from 80 to 92% in different stages. In the second 4-year period (group II) markers were included in staging. Of the 85 patients in this group, 31 were classified as stage I; however, 25 of them had normal markers and 6 had raised markers (subcategorized as IM). Of the remaining 54 patients, 15 were in stage IIab and 39 in stages IIc, III and IV. In the final analysis, 3-year survival was 66% in stage IM as compared to 100% in the remaining stage I patients and 86% in stage IIab, indicating the aggressive nature of IM disease. Amongst stage IIc, III and IV patients, 28 (71%) patients responded to treatment and 3-year survival in them was 71% (20/28). Of the remaining 11 patients who did not respond to treatment in the form of persistently raised markers, the 3-year survival was 18% (2/11).(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1993

Primary papillary adenocarcinoma of the seminal vesicle.

This paper describes a papillary adenocarcinoma solely confined to the seminal vesicle, in a 26 year old male. Imaging techniques and operative findings revealed an enlarged seminal vesicle, harboring a grossly papillary and friable tumor. Strict criteria for diagnosis have been applied, in this unusual case. The young age and unusual location of this papillary adenocarcinoma prompted us to report this case.

Adenocarcinoma, Papillary↗
PubMed1992

Bladder leiomyoma in pregnancy: a case report.

We herein report a rare case of an asymptomatic bladder mass seen during pregnancy in a young woman. A hypogastric mass was detected at antenatal checkup in the 7th month of pregnancy. The mass increased in size as the pregnancy went to term. Three months after normal delivery, she underwent surgery and a tumor arising from the bladder wall was excised completely. Histology showed a symplastic leiomyoma.

Adult↗
PubMed1992

Solitary metastases from renal cell carcinoma: a review.

Nineteen patients with solitary metastatic lesions from renal cell carcinoma, 5 synchronous and 14 metachronous, were seen at the Tata Memorial Hospital over a 7 year period between 1981 and 1987. The mean metastatic interval for the metachronous lesions was 31.2 months. The commonest sites of metastases were bone, lung, and liver. The solitary nature of the metastasis was confirmed by appropriate investigations. All patients underwent nephrectomy for the primary kidney lesion. The metastatic lesions were treated with intent of cure. Only 1 patient with synchronous metastasis survived for 2 years and none survived 5 years while in the metachronous metastasis group, the estimated overall survival was 50% at 2 years and 25% at 5 years. The patients with a long metastasis-free interval were found to have a better survival. The patients with liver metastasis did poorly as compared to those with metastases at other sites. The stage of the disease also had a bearing on the survival.

Adult↗
PubMed1992

Value of retroperitoneal lymph node dissection in advanced testicular seminoma.

Seven patients with advanced seminoma of the testis (stages II C and III) were treated with 3 induction cycles of VAB-6 chemotherapy. Three patients had complete remission after chemotherapy and are alive disease free at 32, 38, and 40 months with no additional treatment. Four patients were subjected to retroperitoneal lymph node dissection for residual retroperitoneal masses measuring 2-4 cm after chemotherapy, which revealed fibrosis in 2 patients and metastatic seminoma in the other 2. Patients with metastatic residual masses were given postoperative radiation therapy to the retroperitoneum and are alive disease free at 33 and 34 months, while those with fibrosis are alive disease free at 30 and 52 months, respectively, with no additional treatment.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1992

Primary endodermal sinus tumor of the penis: a case report.

We report a case of primary extragonadal germ cell tumor of the penis in a 2-year-old child with elevated serum alpha-fetoprotein. The patient responded well to a combination of bleomycin, etoposide and cisplatin, achieving a complete response within 3 cycles. He was alive and disease-free 8 months after diagnosis. To our knowledge this is the first case of an endodermal sinus tumor of the penis reported in the literature. The possible histogenesis of this tumor at such a rare site is discussed.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1992

Continent urinary reservoirs.

We report our experience of 30 continent urinary reservoirs (CURs) after radical cystectomy. The patients ranged in age from 35 to 70 years. There were 22 males and 8 females. Pre-operative urograms showed normal upper tracts in 22 patients, unilateral hydronephrosis in 4 and bilateral hydronephrosis in 4. The first 20 patients had a standard CUR procedure and the last 10 had a modified CUR. The mean operative time, blood loss and post-operative stay were 6.6 h, 900 ml and 25 days respectively for standard CURs and 5.7 h, 825 ml and 21 days respectively for the modified CURs. Post-operative, urinary leaks from the caecostomy site occurred in 2 patients (1 of which was fatal) while 3 other patients had prolonged ileus, burst abdomen and intestinal obstruction probably due to non-demonstrable urinary leaks. All 5 complications occurred in the first 20 patients. Upper tract status was evaluated in 28 patients 3 months after surgery and showed normal upper tracts in 19 patients, improvement in 6 (35%) and worsening in 3 (12.5%). Pouchograms showed no reflux in 25 patients, unilateral reflux in 2 and bilateral reflux in 1. Complete continence was achieved in 25 patients--2 of them had revision surgery, giving a success rate of 89% with a follow-up of 6 to 48 months (median 24). The remaining 3 patients were incontinent.

Adult↗