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Biomedical subjects

S Ichii

Publications and source records attributed to S Ichii.

121 records · Page 7Linked to original sources

Intrathyroid thyroglossal duct cyst simulating a thyroid nodule.

A case of intrathyroid thyroglossal duct cyst is reported. A 50-year-old woman presented with a right lateral neck mass that was clinically indistinguishable from a thyroid nodule. Ultrasound-guided fine-needle aspiration biopsy (US-FNAB) revealed normal-looking squamous cells. Right thyroid lobectomy was performed and microscopic examination revealed a cyst lined by squamous epithelium that was consistent with a thyroglossal duct cyst. The lesion was completely surrounded by normal thyroid tissue. Our experience suggests that intrathyroid thyroglossal duct cyst should be remembered in the differential diagnosis of a thyroid nodule. Detection of benign squamous cells by US-FNAB may be useful for ruling out the possibility of a cystic thyroid tumor.

Biopsy, Needle↗

Thyroid cancer in uremic patients.

BACKGROUND: The combination of thyroid cancer and secondary uremic hyperparathyroidism has thus far been reported in only 25 cases. METHODS: Here we report our experience of 19 patients with secondary hyperparathyroidism who underwent parathyroidectomy. RESULTS: Thyroid nodules were present in five patients (26.3%), including one with a benign nodule and four with papillary thyroid cancer (21.1%). CONCLUSION: Our experience suggests that, in order to make a correct diagnosis, clinicians should consider the possibility of thyroid cancer in uremic patients with secondary hyperparathyroidism.

Adult↗

Accessory breast cancer: a case report and review of the Japanese literature.

The case of a 31-year-old woman with accessory breast cancer in the left axilla is described. She had noticed a swelling in the left axilla during her three pregnancies. The preoperative diagnosis of accessory breast cancer was made on the basis of ultrasound-guided fine-needle aspiration biopsy (US-FNAB) and clinical history. She was treated by wide local resection and regional lymph node dissection. Although cancer originating from accessory breast tissue has been reported very rarely, knowledge of this disorder may facilitate the correct diagnosis of axillary tumors. US-FNAB is a useful and simple technique for the tissue diagnosis of axillary tumors.

Adult↗

Ultrasound-guided fine-needle aspiration biopsy for breast tumors: needle guide versus freehand technique.

BACKGROUND: We retrospectively studied whether a needle guide is necessary when performing ultrasound-guided fine-needle aspiration biopsy (US-FNAB) in patients with breast tumors. METHODS: A total of 47 patients (50 lesions) with breast tumors underwent US-FNAB with a needle guide and 127 patients (143 lesions) underwent the procedure without a needle guide (freehand biopsy). The diagnoses obtained by US-FNAB were compared with the surgical findings. RESULTS: The sensitivity of freehand biopsy for tumors < 3 cm in diameter was significantly higher than that of the needle guide technique. CONCLUSIONS: We recommend performing US-FNAB without a needle guide (freehand biopsy) in order to maximize the correct preoperative diagnosis rate, especially in patients with tumors < 3 cm in diameter.

Biopsy, Needle↗