Table 1

Features of HNA patients with nerve and/or muscle biopsy

Patient	1	2	3	4	5	6*
See Airaksinen et al*⁵; †no further details available.
BP, brachial plexus; LSP, lumbosacral plexus.
Sex, age at biopsy	Male, 53 years	Male, 29 years	Male, 19 years	Female, 9 years	Female, 8 years	Female, 72 years (postmortem)
Age at first attack	17 years	28 years	3 years	9 years	8 years	21 years
No. of attacks	3	1	2	1	1	5
Muscle	Soleus	Deltoid	Soleus	Soleus	Deltoid	–
Clinically affected?	Yes	Yes	No	No	Probably yes
Sural nerve	+	−	+	+	−	(Brachial plexus)
Clinically affected?	Yes		No	No
Time between biopsy	Muscle: 2 weeks	6 months	1 year	Acute†	Acute†	>30 years †
and last attack	Nerve: 2 years
Clinical features of last attack	Bilateral BP+right LSP	Bilateral upper BP	Right upper BP+posterior cord	Right upper BP	Right upper BP	Upper and medial BP