A rare case of primary tuberculosis in a solitary thyroid nodule.

Tuberculosis (TB) of the thyroid gland is extremely rare with fewer than 200 cases reported worldwide. We report a case of primary TB of the thyroid in a 73-year-old gentleman with no risk factors for TB, presenting with a painless right neck mass of one week's duration. A pre-operative ultrasound scan reported a solid-cystic, right TIRADS 5 nodule, and initial fine needle cytology showed granulomatous inflammation and was negative for AFB on Ziehl-Neelsen stain. A right hemithyroidectomy was done subsequently, and histology demonstrated necrotizing granulomatous inflammation, but TB-PCR detected Mycobacterium DNA. Primary TB of the thyroid is rare and can manifest in patients with no apparent risk factors for TB. Initial cytology may only yield granulomatous inflammation and surgery is needed to ascertain the exact cause of granulomatous inflammation and additional TB-PCR can help clinch the diagnosis.

Retromastoid osteoma-a rare case report.

Osteomas are slow growing bone tumours and are often asymptomatic. Rarely, they can be present in the temporal bone-only few cases had been reported, with an incidence of 0.1-1%. We describe a case of an osteoma of the temporal bone (retromastoid) found in a 40 year old female, who presented with a slow growing swelling behind the right ear for 9 years. Diagnosis was made on non-contrast computed topography (CT) of the skull. Treatment is indicated in symptomatic cases or cosmetic reasons. Screening colonoscopy and genetic testing for familial adenomatous polyposis (FAP) and Gardner's syndrome are advised.

A Rare Case of Multifocal Papillary Thyroid Cancer in Bilateral Thyroid Cysts.

Papillary thyroid cancer (PTC) can present as a thyroid cyst. In its more aggressive form, PTC may be multifocal in nature and is associated with a poorer prognosis. In patients whom PTC is diagnosed incidentally after a diagnostic lobectomy, the decision whether to offer completion thyroidectomy is sometimes challenging to make if such patients fall in the 'low-to-intermediate' risk category. We present a case of a 55-year-old lady who had a predominantly cystic left thyroid nodule with no suspicious features on ultrasound as well as 2 subcentimetre simple right-sided cysts. She subsequently underwent left hemithyroidectomy, and this reported a T2 PTC in the thyroid cyst. This was followed by completion thyroidectomy which yielded the surprising finding of PTC in the two tiny right sided cysts. This case highlights the need for vigilance in managing patients with thyroid cysts even though thyroid ultrasound scan did not reveal any overt suspicious features.

Pigmented epithelioid melanocytoma with nodal melanosis: A rare cause of cystic cervical lymphadenopathy.

BACKGROUND: Head and neck malignancies often present as firm, solid nodal masses. However, malignancies arising from Waldeyer's Ring may give rise to cystic lymph nodes. METHODS: A 57-year-old man was referred for left-sided neck swelling of 2 weeks' duration. A CT scan revealed an enlarged cystic cervical node at level 5A/B and he underwent excision biopsy. RESULTS: Histology reported nodal fibrosis with melanophages. Further examination revealed a black nodule on his back where he had wide excision and the histology confirmed pigmented epithelioid melanocytoma. CONCLUSION: Cervical lymphadenopathy can rarely be due to an upper back lesion, such as pigmented epithelioid melanocytoma. Thus, routine clinical examination of the upper back should be performed in patients with cervical lymphadenopathy.

Undifferentiated pleomorphic sarcoma of the neck - A case report.

Undifferentiated pleomorphic sarcoma very rarely affect the neck. We report a case of a 62year old man who presented with a right sided skin lump which he noticed after sustaining a neck contusion in a road traffic accident about one year ago. The initial CT and ultrasound scans of the lump were suggestive of a thrombosed varix. Clinical examination showed a hard skin nodule with signs of tethering. He underwent a wide excision of the skin nodule and the histology showed undifferentiated pleomorphic sarcoma with margins involved. He subsequently underwent another re-excision of margins and pectoralis major flap reconstruction. Following surgery, he was also prescribed adjuvant radiotherapy and he remains well about 12 months after follow up. The surgical management of undifferentiated pleomorphic sarcoma in the neck is challenging due to the proximity of critical neck structures and the need to obtain clear margins. Thus, adjuvant radiotherapy is often used to improve disease control.

A case report of an anterior tibial artery pseudo-aneurysm open surgical management: A rare complication post total knee arthroplasty.

INTRODUCTION: Complications involving injury to neurological and vascular structures are infrequently reported after total knee arthroplasty (TKA). They are associated with significant morbidity and can be limb threatening. PRESENTATION OF CASE: We present a patient with an anterior tibial artery (ATA) aneurysm post total knee arthroplasty. A 69-year-old female was referred for a swelling over her left antero-lateral aspect of her leg 4 years post TKA. Radiological investigations showed an ATA pseudo aneurysm. The aneurysm was repaired by open ligation. DISCUSSION: ATA pseudo aneurysm is a rare condition post arthroplasty. Patients can complain about calf pain, digits discoloration, paresthesia and the presence of a pulsating or enlarging mass. Symptomatic aneurysms require surgical intervention. CONCLUSION: ATA pseudo aneurysms are uncommon. They are usually identified shortly after the initial insult. A delayed manifestation of a post knee arthroplasty complication as illustrated in our case is likely the first reported case of its kind. Clinicians should maintain a high index of suspicion should there be persistent localised swelling post TKA. However, due to the rarity of this condition, a variety of interventions have been reported in the English medical literature with probably no compelling evidence that favors one modality over the others.

Intramuscular injection of parathyroid autografts is a viable option after total parathyroidectomy.

INTRODUCTION: Surgical transplantation of parathyroid gland into muscle is an established technique after total parathyroidectomy for renal hyperparathyroidism. However, no study has examined the role of injecting parathyroid tissue in these patients. We compared the outcome of surgical transplantation of parathyroid glands by implantation ("implant") versus that of intramuscular injection ("inject"). METHODS: Patients who had total parathyroidectomy for tertiary hyperparathyroidism due to chronic renal failure from 2001-2008 are included in this study. For the implant group, a parathyroid gland is divided into 10-12 pieces (each of 2-mm in diameter) before embedding into the deltoid or brachioradialis muscle. Patients in the inject group, each had a finely minced gland injected into the deltoid. Postoperatively, the graft is deemed to be functioning if 1) serum PTH is normal, or 2) serum calcium is normal in the absence of calcium supplements or reduced dosage requirements; these assays are performed at least 1 month after initial surgery. Recurrence is defined by the presence of hyperparathyroidism requiring autograft excision. RESULTS: A total of 66 patients (23 men, 43 women) were included in the study. The implant group comprised 31 patients (mean age 49.9 +/- 14.0), and the inject group had 35 patients (mean age 49.2 +/- 10.4; P = 0.80). The mean follow-up period for implant was longer at 40.1 months compared with 16.2 months for inject (P = 0.001). Operative time for implant was slightly longer at 111 min versus 106 min for inject (P = 0.51). Graft function was achieved in 27 (87.1%) implant patients and 20 (69%) inject patients (P = 0.08). Recurrence was seen in four (12.9%) implant patients compared with one (2.9%) inject patient, after a mean period of 28.8 months. This difference was not statistically significant (P = 0.18). CONCLUSIONS: Intramuscular injection of parathyroid tissue is a feasible alternative to surgical transplantation by implantation after total parathyroidectomy in tertiary hyperparathyroidism. The injection method was slightly faster to perform. However, injection achieved a slightly lower graft function rate but the risk of autograft hyperplasia also was lower.