Cheng-Yu Lo

Far Eastern Memorial Hospital, T’ai-pei, Taipei, Taiwan

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Publications (8)8.68 Total impact

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    ABSTRACT: Cervical cystic lymph node metastasis as the first and sole manifestation of occult papillary thyroid carcinoma (PTC) is uncommon, and can be mistaken for branchial cleft cyst. The present study reports two cases of PTC initially presenting as upper lateral neck cysts. Ultrasound examination confirmed the presence of occult papillary carcinoma with neck metastasis. The critical importance of ultrasound examination of the soft tissue of the neck for the identification of the clinical manifestations and the imaging features of occult PTC are discussed, with an emphasis on factors that may contribute to misdiagnosis.
    Journal of Medical Ultrasound 06/2013; 21(2):92–96.
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    ABSTRACT: Peripancreatic lymph node is a rare site for extrapulmonary tuberculosis involvement(1) . The presentation is usually indolent with weight loss, abdominal pain, fever or obstructive jaundice.(2-4) Besides, the enlarged lymph node resembles pancreatic parenchyma on ultrasound or computed tomography (CT) due to similar tissue density.(5-7) Therefore, it is often misdiagnosed as pancreatic malignancy.(8,9) Imaging modality with higher accuracy and tissue proof are mandatory for diagnosis and further management.(10,11).
    Journal of Digestive Diseases 11/2012; · 1.85 Impact Factor
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    ABSTRACT: Transient neonatal pustular melanosis is mostly found in full-term black infants. It is a benign and self-limited disease, and the etiology is still unknown. We present a full-term female neonate with multiple vesiculopustular and pigmented macular lesions found immediately after her birth. A skin biopsy showed vesicles consisting of intracorneal and subcorneal aggregates of neutrophils, which is compatible with transient neonatal pustular melanosis. Although it is rare in Taiwan and Asian countries, transient neonatal pustular melanosis should always be considered when pustulosis is found in the neonatal period to prevent the use of unnecessary antibiotics. Dermatological consultation and histological confirmation are sometimes required for the final diagnosis.
    Pediatrics & Neonatology 12/2010; 51(6):356-8. · 0.93 Impact Factor
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    ABSTRACT: We report a case of subglottic narrowing caused by an extranodal deposit of sinus histiocytosis in a 55-year-old man. To the best of our knowledge, no previous reports have described diagnosis using sonographic-guided fine-needle aspiration cytology for Rosai-Dorfman disease of the subglottis. This patient was diagnosed by sonographic-guided fine-needle aspiration biopsy, which revealed lymphocytes, plasma cells, and many foamy, multinuclear histiocytes with preserved lymphocytes in their cytoplasm (emperipolesis). The patient underwent an incisional biopsy of the tumor and received postoperative steroids and low-dose chemotherapy. The subglottic tumor was markedly regressed 6 months later.
    Journal of Clinical Ultrasound 12/2009; 38(2):103-6. · 0.70 Impact Factor
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    ABSTRACT: Intravascular papillary endothelial hyperplasia (IPEH) is an abundant, usually intravascular, benign endothelial proliferation that may mimic angiosarcoma clinically and histopathologically. Its occurrence in the sinonasal cavity is extremely rare. To the best of our knowledge, we present the first case with the most extensive IPEH ever found within the sinonasal cavity. A 42-year-old man of intravascular papillary endothelial hyperplasia in the sinonasal cavity was reported. He complained of a 1-year history of left-sided nasal obstruction accompanied by unilateral rhinorrhea, repeated epistaxes and frontal headache. Anterior rhinoscopy demonstrated a smooth-surfaced reddish mass occupying the left nasal cavity. Endoscopic surgery was used to clear this uncommon tumor in the sinonasal cavity. A review of the pertinent literature was also presented. IPEH may be mistaken for an angiosarcoma clinically and histopathologically. Complete endoscope-guided surgical excision is the best choice of therapy for patients with IPEH and is both diagnostic and curative. Awareness of this lesion will prevent incorrect diagnosis and overly aggressive treatment.
    Auris, nasus, larynx 10/2008; 36(3):363-6. · 0.58 Impact Factor
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    ABSTRACT: Parotitis caused by nontuberculous mycobacteria, a very rare disease entity, has never been reported to be caused by Mycobacterium fortuitum (M. fortuitum) in the literature. An 8-year-old girl was seen with painful swelling of the right parotid gland despite antibiotic treatment of more than 1 month. Elevated serum amylase activity and diffuse contrast-enhanced CT of the parotid gland confirmed the diagnosis of parotitis. Histopathological study of specimens taken from the right parotid tail mass showed granulomatous inflammation with acid-fast positive bacilli; culture later confirmed M. fortuitum. After administration of clarithromycin and ciprofloxacin for 9 consecutive months, the parotitis and parotid tail mass were completely resolved at follow-up examination. To our knowledge, this is the first case report of parotitis caused by M. fortuitum and its successful medical treatment.
    Head & Neck 11/2007; 29(11):1061-4. · 2.83 Impact Factor
  • Taiwanese journal of obstetrics & gynecology 10/2007; 46(3):314-6.
  • Chia-Hung Chen, Cheng-Yu Lo
    Archives of Otolaryngology - Head and Neck Surgery 12/2006; 132(11):1268, 1270-1. · 1.78 Impact Factor