Objective: To observe the process of tumor response to interstitial brachytherapy of intracranial germinomas during and immediately after the therapy. Methods: Fractionated brachytherapy using 192 Ir was used in 13 pa...Objective: To observe the process of tumor response to interstitial brachytherapy of intracranial germinomas during and immediately after the therapy. Methods: Fractionated brachytherapy using 192 Ir was used in 13 patients with intracranial germinomas. The average age at diagnosis was 14.3 years (range 5-27 years). The frequency of fractionation had been increased stepwise from 3 fractionations within 5 d in the past to 26-30 fractionations in 15-20 d at present. Results: Of 9 pineal tumors, the average reduction of tumor volume was 73.2% at a cumulated radiation dose of 20 Gy and 85.3% at 30 Gy, respectively. In 4 cases of basal ganglia and thalamus areas tumors, the reduction of tumor volume was from an average 56.1% at a cumulated radiation dose of 30 Gy to 75.2% at the end of therapy. That intratumoral hemorrhage was absorbed quickly accompanying tumor regression was demonstrated in all but one patient; 6 patients died; 7 patients were still in follow-up without any evidence of tumor recurrence. Conclusion: Interstitial brachytherapy could be given as the first optional therapy for intracranial germinomas. The histological diagnosis of germinomas can be verified by stereotactic biopsy simultaneously. Germinoma is one of the sensitive tumors to interstitial brachytherapy. The radiation injury to surrounding brain tissue could be reduced by using a conformal dynamic brachytherapy.展开更多
Objective: To analyze the clinicopathologic features of breast signet-ring cell carcinoma (SRCC) presenting with genital tract metastasis. Methods: A 54-year-old woman presented with metrorrhagia was described and the...Objective: To analyze the clinicopathologic features of breast signet-ring cell carcinoma (SRCC) presenting with genital tract metastasis. Methods: A 54-year-old woman presented with metrorrhagia was described and the immunostaining was performed. Results: Histologically, signet ring cells (SRCs) scattered in the stroma of endometrium and cervix, bilateral fallopian tubes, ovaries and left breast. Immunohistochemistry of these SRCs showed strong reactive for cytokertin 7, CEA, GCDFP-15, and weak reactive for CA125 and negative for cytokertin 20. All these information confirmed the breast origin of SRCC. Conclusion: Primary breast SRCC is extremely rare with metrorrhagia as its first symptom. Gynecologist and pathologist should be aware of this possibility when metrorrhagia is the only symptom. Immunohistochemistry can help differentiate the origin of SRCC.展开更多
文摘Objective: To observe the process of tumor response to interstitial brachytherapy of intracranial germinomas during and immediately after the therapy. Methods: Fractionated brachytherapy using 192 Ir was used in 13 patients with intracranial germinomas. The average age at diagnosis was 14.3 years (range 5-27 years). The frequency of fractionation had been increased stepwise from 3 fractionations within 5 d in the past to 26-30 fractionations in 15-20 d at present. Results: Of 9 pineal tumors, the average reduction of tumor volume was 73.2% at a cumulated radiation dose of 20 Gy and 85.3% at 30 Gy, respectively. In 4 cases of basal ganglia and thalamus areas tumors, the reduction of tumor volume was from an average 56.1% at a cumulated radiation dose of 30 Gy to 75.2% at the end of therapy. That intratumoral hemorrhage was absorbed quickly accompanying tumor regression was demonstrated in all but one patient; 6 patients died; 7 patients were still in follow-up without any evidence of tumor recurrence. Conclusion: Interstitial brachytherapy could be given as the first optional therapy for intracranial germinomas. The histological diagnosis of germinomas can be verified by stereotactic biopsy simultaneously. Germinoma is one of the sensitive tumors to interstitial brachytherapy. The radiation injury to surrounding brain tissue could be reduced by using a conformal dynamic brachytherapy.
文摘Objective: To analyze the clinicopathologic features of breast signet-ring cell carcinoma (SRCC) presenting with genital tract metastasis. Methods: A 54-year-old woman presented with metrorrhagia was described and the immunostaining was performed. Results: Histologically, signet ring cells (SRCs) scattered in the stroma of endometrium and cervix, bilateral fallopian tubes, ovaries and left breast. Immunohistochemistry of these SRCs showed strong reactive for cytokertin 7, CEA, GCDFP-15, and weak reactive for CA125 and negative for cytokertin 20. All these information confirmed the breast origin of SRCC. Conclusion: Primary breast SRCC is extremely rare with metrorrhagia as its first symptom. Gynecologist and pathologist should be aware of this possibility when metrorrhagia is the only symptom. Immunohistochemistry can help differentiate the origin of SRCC.
